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HomeMy WebLinkAbout20250527Compliance Filing.pdf ' 11 KLULIVLU May 27, 2025 Avista Corp. IDAHO PUBLIC 1411 East Mission P.O. Box 3727 UTILITIES COMMISSION Spokane,Washington 99220-0500 Telephone 509-489-0500 Toll Free 800-727-9170 May 27,2025 State of Idaho Idaho Public Utilities Commission 11331 W. Chinden Blvd Bldg 8, Suite 201-A Boise,Idaho 83714 Case No. AVU-E-25-04 I.P.U.C.No.28—Electric Service Dear Commission Secretary: In compliance with Order No. 36613, in Case No. AVU-E-25-04,the Company has attached for electronic filing with the Commission the following revised tariff sheets: Supplemental Fifth Revision Sheet 51 canceling Fourth Revision Sheet 51 Supplemental Eleventh Revision Sheet 51B canceling Tenth Revision Sheet 51B Supplemental Twenty-Seventh Revision Sheet 51E canceling Twenty-Sixth Revision Sheet 51E Supplemental Twenty-Sixth Revision Sheet 51F canceling Twenty-Fifth Revision Sheet 51F Supplemental Twenty-Seventh Revision Sheet 51G canceling Twenty-Sixth Revision Sheet 51G Supplemental Twenty-Fifth Revision Sheet 51H canceling Twenty-Fourth Revision Sheet 51H Supplemental Twelfth Revision Sheet 51J canceling Eleventh Revision Sheet 51 Supplemental Fourth Revision Sheet 51M canceling Supp Third Revision Sheet 51M Supplemental Twenty-Sixth Revision Sheet 51N canceling Twenty-Fifth Revision Sheet 51N Supplemental Twenty-Sixth Revision Sheet 510 canceling Twenty-Fifth Revision Sheet 510 The purpose of this compliance filing is to specify in Sheet 51M,per the final Order,that"all customers"with a load request which requires an impact study will pay for the cost. In addition,the Company has reflected an effective date of June 1,2025. If you have any questions regarding this filing,please contact Tia Benjamin at(509)495-2225 or Joe Miller at (509)495-4546. Sincerely, Is/Joe Miller Joe Miller Sr Manager of Rates and Tariffs Supplemental Fifth Revision Sheet 51 Canceling I.P.U.C. No.28 Fourth Revision Sheet 51 51 AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 LINE EXTENSION, CONVERSION AND RELOCATION SCHEDULE IDAHO 1. APPLICABILITY The rules for Line Extensions in this Schedule apply to all existing and prospective Customers requesting a new line extension. The rules for Conversions and Relocations in this Schedule apply to all Customers requesting changes to existing facilities. 2. GENERAL RULES: a. Every Customer who wants the Company to design a line extension must first submit a written application. A $1,000 application fee will be required for load requests of 3 MVA or greater. A Design Fee of$150 may be required for any line extension, Conversion of Primary Circuit, or Relocation of Primary Circuit., that is unusually large, complex, or of a questionable nature, and for each additional design requested. b. The Company shall have the right to enter and exit the Customer's property to construct, reconstruct, operate and maintain the line extension. The Company's agents and employees shall have access at all reasonable times for reading, inspecting, constructing, reconstructing, repairing and removing the Company's meters, metering equipment and electric facilities. C. All necessary right-of-way assignments, easements and permits across other properties will be secured at no cost before the Company constructs the line extension. d. The length, depth, Point of Delivery, location, route, phases, voltage, capacity and cost of the Line Extension shall be determined by the Company. The line extension shall be compatible with existing neighboring electric facilities. e. Premises where the Company's electric facilities have been removed or otherwise disconnected for longer than twelve months, and where a customer wants service re-established, will be treated as a new customer and granted an allowance. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Supplemental Eleventh Revision Sheet 51 B Canceling I.P.U.C. No.28 Tenth Revision Sheet 51B 51B AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued When two or more Customers apply concurrently for service from the same Line Extension, each will receive an Allowance up to their proportion of the Basic and Exceptional Cost of the line extension. Allowances shall be granted only against the Basic and Exceptional Cost of the current project and not against any part of an earlier or future extension. The Allowance will be equal to the Basic and Exceptional Cost or the applicable amount listed below, whichever is less: MAXIMUM ALLOWANCE Schedule 1 individual Customer $2,545 per unit Schedule 1 duplex $2,035 per unit Schedule 1 multiplex $1,530 per unit EXCEPTION: The Company will not grant an immediate Allowance if the Company, in its sole judgement, determines that the load: a) is less than 2500 kWh per year, or b) will be in service less than five years. A mobile home will not qualify for an Allowance until it has permanent connections to both water service and either a sewer or septic system. If such connections are made within five years after the completion of the line extension, the Company will, at that time, refund the Basic and Exceptional Cost or the amount of the Allowance in effect at the time of the line construction, whichever is less. The Customer must apply for the refund before the line extension becomes six years old. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Seventh Revision Sheet 51 E Canceling I.P.U.C. No.28 Twenty-Sixth Revision Sheet 51 E 51 E AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued 5) "Share of Previous Extension" applies only to Primary Circuits less than five years old. If part of a previous line extension is used to serve a new Customer, the new Customer must pay a share of the previous Primary Circuit cost and Transformer cost, if shared, to the Company before the start of construction. The amount paid by the new Customer will be refunded to existing Customers in relation to their share of the Primary Circuit and Transformer, if shared. The Company will refund appropriate shares to the bearers of Extension Certificates when the Certificates are presented for payment and the connection of the subsequent Customer has been verified. The Company will make a reasonable attempt to inform the bearer of the Certificate when a refund is due. Bearers of Extension Certificates must apply for refunds before the original line extension becomes six years old. Unclaimed refunds will be returned to the contributor. EXAMPLE: 1. First Customer pays $13,550 for 1,000 feet of primary underground circuit ($13.55 per foot). 2. Second Customer takes service within five years using 600 feet of the original extension. 3. Both Customers share the first 600 feet equally: 600 ft x $13.55/ft x '/2 = $4,065. 4. The Second Customer's payment of$4,065, will be refunded to the First Customer to reduce his investment in the 600 feet to $4,065. The First Customer's investment in the remaining 400 feet remains at $5,420. ($13,550-$4,065-$4,065=$5,420) EXCEPTION: If the refund to an existing Customer is less than $100 each, the new Customer will not be required to pay that share and the existing Customer will not receive a refund. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Sixth Revision Sheet 51 F Canceling I.P.U.C. No.28 Twenty-Fifth Revision Sheet 51 F 51 F AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued 4. RULES AND CHARGES FOR UNDEVELOPED RESIDENTIAL LOTS a. A development is a group of neighboring undeveloped lots separated by no more than streets and under the ownership or legal control of a single party as determined by the Company. Both the General Rules and the following rules apply to line extensions within residential developments. b. Before Company facilities will be installed, the developer must submit a written application for service, a copy of the plat as approved by the governing agency depicting dedicated utility easements approved by the serving utilities and must pay an extension cost to the Company which is computed as follows: Basic and Exceptional Cost + Customer-Requested Costs - Cost Reductions (one) Design Fee of$150 (if paid) = extension cost within development + cost of extension to development + Share of Previous Extension extension cost 1) "Basic and Exceptional Cost" will be computed from the following rate per lot when the Development serves single phase loads, has at least six lots and the average frontage is no more than 175 feet per lot. The Basic and Exceptional Cost includes the cost of the Primary Circuit, the Transformer and the Secondary Circuit in the utility easement or public right-of- way, but does not include the Service Circuit from the point of connection with the Secondary Circuit to the Point of Delivery. Developments: $3,333 per Lot Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Seventh Revision Sheet 51G Canceling I.P.U.C. No.28 Twenty-Sixth Revision Sheet 51G 51G AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued The Basic and Exceptional Cost for all other Developments will be computed from the rates listed in this Schedule for Service Circuits, Secondary Circuits, Transformers and Primary Circuits. 2) "Cost Reductions, "Customer-Requested Costs, and "Share of Previous Extension" are described under Rules for Individual Customers. 3) "Extension to development" is the line extension between the Company's existing energized electric facilities and the boundary of the development. The Rules for Individual Customers apply to the extension to the development. C. In lieu of a cash payment of the Basic and Exceptional Cost in a Development, the Company will accept a letter of credit, a contractor's performance bond, or another credit instrument agreeable to the Company for $3,333 per lot upon execution of a written agreement with the Developer. The agreement shall prescribe the requirements for such a credit instrument and shall permit the face amount of the instrument to be reduced annually as new customers are connected within the Development. The Developer will provide ditching within the Development. d. Prior to the installation of the Service Circuit to each single-family residence in a development, the home builder will be required to make a non-refundable cash payment to the Company of$1,304 per residence. There will be no charge to the builder for the installation of the Service Circuit to serve a duplex or multiplex dwelling. e. A Developer who pays the extension cost described in 4.b.1) may apply for a refund annually for each permanent Customer connected within the Development during the first five years from the start of construction after the extension is completed. The Company will make a reasonable attempt to inform the bearer of the certificate when a refund is due. The Company will pay the refund to the bearer of the Extension Certificate when it is presented to the Company for payment and the connection of the permanent Customer has been verified. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Fifth Revision Sheet 51 H Canceling I.P.U.C. No.28 Twenty-Fourth Revision Sheet 51 H 51 H AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued For Developers who have made a cash payment to the Company for the Basic and Exceptional Cost in the development, the sum of all refunds shall not exceed the total Basic and Exceptional Cost paid by the Developer or $3,333 per lot multiplied by the number lots, whichever is less. The developer must apply for the refunds before the line extension becomes six years old. f. In a Development where primary taps may be required into some lots to provide adequate service or where the loads are not clearly defined, the Company may elect to install only an initial Primary Circuit through the Development (no Transformers or Secondary Circuits). The Rules for Individual Customers will be used to establish the extension cost of the Primary Circuit and that cost must be paid in advance by the Developer. The permanent Customer on each lot must meet the Rules for Individual Residential Customers for the extension into the lot, except they will not pay a share of the cost of the Primary Circuit through the Development or a share of previous extensions outside the Development. The applicable Allowance will be credited first to the Basic and Exceptional Cost to serve the permanent Customer. The Developer will be refunded only the portion of the Allowance not granted or applied to the permanent Customer. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twelfth Revision Sheet 51J Canceling I.P.U.C. No.28 Eleventh Revision Sheet 51J 51J AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 — continued 1) The Total Estimated Extension Cost shall include all costs which are necessary to provide service to the Customer, as determined by the Company. The amount of the Allowance will be determined individually for each Customer based on the Company's estimate of the Customer's annual metered energy usage (delivered by Avista) and an allowance per kWh based on the applicable service schedule. d. When two or more Customers apply concurrently for service from the same Line Extension, each will receive an Allowance up to their proportion of the Total Estimated Extension Cost. Allowances shall be granted only against the costs of the current project and not against any part of an earlier or future extension. The Allowance will be the Total Estimated Extension Cost, or the applicable Allowance by Schedule multiplied by the Customer's estimated metered energy usage (delivered by Avista), whichever is less: ALLOWANCE BY SERVICE SCHEDULE Schedule 11 or 12: $0.19912 per kWh Schedule 21, 22 or 23: $0.18388 per kWh Schedule 31 or 32: $0.32929 per kWh Exception: The Company will not grant an immediate Allowance if the Company, in its sole judgement, determines that the load is unknown, or will be in service less than five years. If an Allowance is not provided at the time service is installed, the Customer is eligible to receive a refund of their Allowance when annual metered energy usage (delivered by Avista) is known and measured. Any refund of Customer Allowance must be requested by the Customer within five years of the service installation. Undeveloped Commercial and Industrial Lots: A development is a group of neighboring undeveloped lots separated by no more than streets and under the ownership or legal control of a single party as determined by the Company. The General Rules, the Rules for Commercial and Industrial Customers and the following apply to line extensions within commercial or industrial developments. Before Company facilities will be installed, the developer must submit a written application for service and a copy of the plat as approved by the governing agency depicting dedicated utility easements approved by the serving utilities. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Qau-jD-w*---- Supplemental Fourth Revision Sheet 51 M Canceling I.P.U.C. No.28 Supplemental Third Revision Sheet 51 M 51 M AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 — continued inspection of those utilities at reasonable times and the trimming or removal of brush and trees that may interfere with the construction, maintenance or operation of those utilities. d. "Design Fee" is a $150.00 payment to the Company by the Customer requesting a Line Extension, Conversion, or Relocation, in advance of the Company preparing the design. A Design Fee may be collected for any Line Extension, Conversion of Primary Circuit, or Relocation of Primary Circuit that is unusually large, complex, or of a questionable nature. Design Fees may be collected for additional designs if the Customer requests more than one design. For all customer load requests, the actual costs of any additional system impact studies will be paid by the customer. e. "Exceptional Cost" is the cost of labor and/or materials which are necessary to construct the Line Extension but which are not included in the Basic Costs, including, but not limited to the following: a) trenching costs in excess of dirt trench b) boring or jacking under roads or rails c) pavement removal and replacement d) rights of way, permits, surveying e) riser for UG in OH area f) removal of trees and shrubs, or restoration of Customer property in excess of the replacement of sod and general cleanup. f. "Extension Certificate" is a transferable certificate which entitles the bearer to receive certain refunds. Certificates will be issued to all Customers paying for a Primary Circuit, including Developers. The conditions under which refunds will be paid are described in this Schedule and on the Certificate. g. "Point of Delivery" is the location on the Customer's premises where the Company's service conductors and the Customer's service entrance conductors are connected at a common point to permit a single meter installation. The Point of Delivery will be designated by the Company. h. "Primary Circuit" is the electrical facility between the Company's existing energized primary facilities and the proposed Transformer. The Primary Circuit is single phase, is operated at 2400 to 20, 000 volts to ground and may include conductors, connectors, supporting structures, conduit and ditch. The Basic and Exceptional Cost of the Primary Circuit shall be computed using the following rates. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Supplemental Twenty-Sixth Revision Sheet 51 N Canceling I.P.U.C. No.28 Twenty-Fifth Revision Sheet 51 N 51 N AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued Single-Phase Overhead Primary Circuit: Fixed Costs: $5,536 per Customer Variable Costs: $11.20 per foot Underground Primary Circuit: Fixed Costs: $2,583 per Customer Variable Costs: $13.55 per foot g. "Secondary Circuit" is the electrical facility from the Company's Transformer to a handhole or connectors from which one or more Service Circuits originate. The Secondary Circuit is single phase, is operated at less than 600 volts to ground and may include conductors, connectors, conduit, handholes, and ditch. The Basic and Exceptional Cost of the Secondary Circuit shall be computed using the following rates. Single Phase Underground Secondary Circuit: Fixed Costs: $647 per customer Variable Costs: $12.75 per foot Single Phase Overhead Secondary Circuit: Fixed Costs: $2,279 per customer Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Seventh Revision Sheet 510 Canceling I.P.U.C. No.28 Twenty-Sixth Revision Sheet 510 510 AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued h. "Service Circuit" is the electrical facility between the Company's Transformer, connectors, or handhole and the Point of Delivery for a single Customer or building. The Service Circuit is single phase*, is operated at less than 600 volts to ground and may include conductors, connectors, conduit, and ditch. The Basic and Exceptional Cost of the Service Circuit shall be computed using the following rates. These rates do not include meters and metering facilities which are used by the Company for billing purposes. Single Phase Overhead Service Circuit: Variable Costs: $5.06 per foot Single Phase Underground Service Circuit: Variable Costs: $10.29 per foot i. "Transformer" Basic and Exceptional Cost shall be computed using the following rates for single phase transformers. Single Phase Overhead Transformer Costs: $5,308 per Customer Single Phase Padmount Transformer Costs: $10,003 per Customer j. "Underground Facilities" may include primary cable, secondary and service cable, secondary and service connections, surface-type (pad- mount) Transformers, pads, enclosures, terminations, and conduit where necessary. These facilities will be owned, operated and maintained by the Company unless otherwise provided for by agreement. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Fourth Revision Sheet 51 Canceling I.P.U.C. No.28 Third Revision Sheet 51 51 AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 LINE EXTENSION, CONVERSION AND RELOCATION SCHEDULE IDAHO 1. APPLICABILITY The rules for Line Extensions in this Schedule apply to all existing and prospective Customers requesting a new line extension. The rules for Conversions and Relocations in this Schedule apply to all Customers requesting changes to existing facilities. 2. GENERAL RULES: a. Every Customer who wants the Company to design a line extension must first submit a written application. A Design Fee of$150 may be required for any line extension, Conversion of Primary Circuit, or Relocation of Primary Circuit., that is unusually large, complex, or of a questionable nature, and for each additional design requested. b. The Company shall have the right to enter and exit the Customer's property to construct, reconstruct, operate and maintain the line extension. The Company's agents and employees shall have access at all reasonable times for reading, inspecting, constructing, reconstructing, repairing and removing the Company's meters, metering equipment and electric facilities. C. All necessary right-of-way assignments, easements and permits across other properties will be secured at no cost before the Company constructs the line extension. d. The length, depth, Point of Delivery, location, route, phases, voltage, capacity and cost of the Line Extension shall be determined by the Company. The line extension shall be compatible with existing neighboring electric facilities. e. Premises where the Company's electric facilities have been removed or otherwise disconnected for longer than twelve months, and where a customer wants service re-established, will be treated as a new customer and granted an allowance. Issued March 8, 2019 Effective May 1, 2019 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Tenth Revision Sheet 51 B Canceling I.P.U.C. No.28 Ninth Revision Sheet 51B 51B AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued When two or more Customers apply concurrently for service from the same Line Extension, each will receive an Allowance up to their proportion of the Basic and Exceptional Cost of the line extension. Allowances shall be granted only against the Basic and Exceptional Cost of the current project and not against any part of an earlier or future extension. The Allowance will be equal to the Basic and Exceptional Cost or the applicable amount listed below, whichever is less: MAXIMUM ALLOWANCE Schedule 1 individual Customer $2,475 per unit Schedule 1 duplex $1,980 per unit Schedule 1 multiplex $1,490 per unit EXCEPTION: The Company will not grant an immediate Allowance if the Company, in its sole judgement, determines that the load: a) is less than 2500 kWh per year, or b) will be in service less than five years. A mobile home will not qualify for an Allowance until it has permanent connections to both water service and either a sewer or septic system. If such connections are made within five years after the completion of the line extension, the Company will, at that time, refund the Basic and Exceptional Cost or the amount of the Allowance in effect at the time of the line construction, whichever is less. The Customer must apply for the refund before the line extension becomes six years old. Issued March 29, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Twenty-Sixth Revision Sheet 51 E Canceling I.P.U.C. No.28 Twenty-Fifth Revision Sheet 51E 51E AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued 5) "Share of Previous Extension" applies only to Primary Circuits less than five years old. If part of a previous line extension is used to serve a new Customer, the new Customer must pay a share of the previous Primary Circuit cost and Transformer cost, if shared, to the Company before the start of construction. The amount paid by the new Customer will be refunded to existing Customers in relation to their share of the Primary Circuit and Transformer, if shared. The Company will refund appropriate shares to the bearers of Extension Certificates when the Certificates are presented for payment and the connection of the subsequent Customer has been verified. The Company will make a reasonable attempt to inform the bearer of the Certificate when a refund is due. Bearers of Extension Certificates must apply for refunds before the original line extension becomes six years old. Unclaimed refunds will be returned to the contributor. EXAMPLE: 1. First Customer pays $13,490 for 1,000 feet of primary underground circuit ($43.46 per foot). 2. Second Customer takes service within five years using 600 feet of the original extension. 3. Both Customers share the first 600 feet equally: 600 ft x $4a-49/ft x '/z = $4,044. 4. The Second Customer's payment of $4,044, will be refunded to the First Customer to reduce his investment in the 600 feet to $4,044. The First Customer's investment in the remaining 400 feet remains at $5,33,W. ($13;480_$4 044_$4 044-$5392) EXCEPTION: If the refund to an existing Customer is less than $100 each, the new Customer will not be required to pay that share and the existing Customer will not receive a refund. Issued March 29, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Twenty-Fifth Revision Sheet 51 F Canceling I.P.U.C. No.28 Twenty-Fourth Revision Sheet 51 F 51 F AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued 4. RULES AND CHARGES FOR UNDEVELOPED RESIDENTIAL LOTS a. A development is a group of neighboring undeveloped lots separated by no more than streets and under the ownership or legal control of a single party as determined by the Company. Both the General Rules and the following rules apply to line extensions within residential developments. b. Before Company facilities will be installed, the developer must submit a written application for service, a copy of the plat as approved by the governing agency depicting dedicated utility easements approved by the serving utilities and must pay an extension cost to the Company which is computed as follows: Basic and Exceptional Cost + Customer-Requested Costs - Cost Reductions (one) Design Fee of$150 (if paid) = extension cost within development + cost of extension to development + Share of Previous Extension extension cost 1) "Basic and Exceptional Cost" will be computed from the following rate per lot when the Development serves single phase loads, has at least six lots and the average frontage is no more than 175 feet per lot. The Basic and Exceptional Cost includes the cost of the Primary Circuit, the Transformer and the Secondary Circuit in the utility easement or public right-of- way, but does not include the Service Circuit from the point of connection with the Secondary Circuit to the Point of Delivery. Developments: $`'� per Lot Issued March 29, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Twenty-Sixth Revision Sheet 51 G Canceling I.P.U.C. No.28 Twenty-Fifth Revision Sheet 51G 51G AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued The Basic and Exceptional Cost for all other Developments will be computed from the rates listed in this Schedule for Service Circuits, Secondary Circuits, Transformers and Primary Circuits. 2) "Cost Reductions, "Customer-Requested Costs, and "Share of Previous Extension" are described under Rules for Individual Customers. 3) "Extension to development" is the line extension between the Company's existing energized electric facilities and the boundary of the development. The Rules for Individual Customers apply to the extension to the development. C. In lieu of a cash payment of the Basic and Exceptional Cost in a Development, the Company will accept a letter of credit, a contractor's performance bond, or another credit instrument agreeable to the Company for $2,833 per lot upon execution of a written agreement with the Developer. The agreement shall prescribe the requirements for such a credit instrument and shall permit the face amount of the instrument to be reduced annually as new customers are connected within the Development. The Developer will provide ditching within the Development. d. Prior to the installation of the Service Circuit to each single-family residence in a development, the home builder will be required to make a non-refundable cash payment to the Company of$893 per residence. There will be no charge to the builder for the installation of the Service Circuit to serve a duplex or multiplex dwelling. e. A Developer who pays the extension cost described in 4.b.1) may apply for a refund annually for each permanent Customer connected within the Development during the first five years from the start of construction after the extension is completed. The Company will make a reasonable attempt to inform the bearer of the certificate when a refund is due. The Company will pay the refund to the bearer of the Extension Certificate when it is presented to the Company for payment and the connection of the permanent Customer has been verified. Issued March 29, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Twenty-Fourth Revision Sheet 51 H Canceling I.P.U.C. No.28 Twenty-Third Revision Sheet 51 H 51 H AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued For Developers who have made a cash payment to the Company for the Basic and Exceptional Cost in the development, the sum of all refunds shall not exceed the total Basic and Exceptional Cost paid by the Developer or $2-,&�g per lot multiplied by the number lots, whichever is less. The developer must apply for the refunds before the line extension becomes six years old. f. In a Development where primary taps may be required into some lots to provide adequate service or where the loads are not clearly defined, the Company may elect to install only an initial Primary Circuit through the Development (no Transformers or Secondary Circuits). The Rules for Individual Customers will be used to establish the extension cost of the Primary Circuit and that cost must be paid in advance by the Developer. The permanent Customer on each lot must meet the Rules for Individual Residential Customers for the extension into the lot, except they will not pay a share of the cost of the Primary Circuit through the Development or a share of previous extensions outside the Development. The applicable Allowance will be credited first to the Basic and Exceptional Cost to serve the permanent Customer. The Developer will be refunded only the portion of the Allowance not granted or applied to the permanent Customer. Issued March 29, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Eleventh Revision Sheet 51J Canceling I.P.U.C. No.28 Tenth Revision Sheet 51J 51J AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 — continued 1) The Total Estimated Extension Cost shall include all costs which are necessary to provide service to the Customer, as determined by the Company. The amount of the Allowance will be determined individually for each Customer based on the Company's estimate of the Customer's annual metered energy usage (delivered by Avista) and an allowance per kWh based on the applicable service schedule. d. When two or more Customers apply concurrently for service from the same Line Extension, each will receive an Allowance up to their proportion of the Total Estimated Extension Cost. Allowances shall be granted only against the costs of the current project and not against any part of an earlier or future extension. The Allowance will be the Total Estimated Extension Cost, or the applicable Allowance by Schedule multiplied by the Customer's estimated metered energy usage (delivered by Avista), whichever is less: ALLOWANCE BY SERVICE SCHEDULE Schedule 11 or 12: $0.19321 per kWh Schedule 21 or 22: $0.17749 per kWh Schedule 31 or 32: $0.31939 per kWh Exception: The Company will not grant an immediate Allowance if the Company, in its sole judgement, determines that the load is unknown, or will be in service less than five years. If an Allowance is not provided at the time service is installed, the Customer is eligible to receive a refund of their Allowance when annual metered energy usage (delivered by Avista) is known and measured. Any refund of Customer Allowance must be requested by the Customer within five years of the service installation. Undeveloped Commercial and Industrial Lots: A development is a group of neighboring undeveloped lots separated by no more than streets and under the ownership or legal control of a single party as determined by the Company. The General Rules, the Rules for Commercial and Industrial Customers and the following apply to line extensions within commercial or industrial developments. Before Company facilities will be installed, the developer must submit a written application for service and a copy of the plat as approved by the governing agency depicting dedicated utility easements approved by the serving utilities. Issued March 29, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs QauJD-w*---- Supplemental Third Revision Sheet 51 M Canceling I.P.U.C. No.28 Second Revision Sheet 51 M 51 M AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 — continued inspection of those utilities at reasonable times and the trimming or removal of brush and trees that may interfere with the construction, maintenance or operation of those utilities. d. "Design Fee" is a $150.00 payment to the Company by the Customer requesting a Line Extension, Conversion, or Relocation, in advance of the Company preparing the design. A Design Fee may be collected for any Line Extension, Conversion of Primary Circuit, or Relocation of Primary Circuit that is unusually large, complex, or of a questionable nature. Design Fees may be collected for additional designs if the Customer requests more than one design. e. "Exceptional Cost" is the cost of labor and/or materials which are necessary to construct the Line Extension but which are not included in the Basic Costs, including, but not limited to the following: a) trenching costs in excess of dirt trench b) boring or jacking under roads or rails c) pavement removal and replacement d) rights of way, permits, surveying e) riser for UG in OH area f) removal of trees and shrubs, or restoration of Customer property in excess of the replacement of sod and general cleanup. f. "Extension Certificate" is a transferable certificate which entitles the bearer to receive certain refunds. Certificates will be issued to all Customers paying for a Primary Circuit, including Developers. The conditions under which refunds will be paid are described in this Schedule and on the Certificate. g. "Point of Delivery" is the location on the Customer's premises where the Company's service conductors and the Customer's service entrance conductors are connected at a common point to permit a single meter installation. The Point of Delivery will be designated by the Company. h. "Primary Circuit" is the electrical facility between the Company's existing energized primary facilities and the proposed Transformer. The Primary Circuit is single phase, is operated at 2400 to 20,000 volts to ground and may include conductors, connectors, supporting structures, conduit and ditch. The Basic and Exceptional Cost of the Primary Circuit shall be computed using the following rates. Issued June 15, 2022 Effective June 15, 2022 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Twenty-Fifth Revision Sheet 51 N Canceling I.P.U.C. No.28 Twenty-Fourth Revision Sheet 51 N 51 N AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued Single-Phase Overhead Primary Circuit: Fixed Costs: $5,379 per Customer Variable Costs: $10.69 per foot Underground Primary Circuit: Fixed Costs: $2,516 per Customer Variable Costs: $43.48 per foot g. "Secondary Circuit" is the electrical facility from the Company's Transformer to a handhole or connectors from which one or more Service Circuits originate. The Secondary Circuit is single phase, is operated at less than 600 volts to ground and may include conductors, connectors, conduit, handholes, and ditch. The Basic and Exceptional Cost of the Secondary Circuit shall be computed using the following rates. Single Phase Underground Secondary Circuit: Fixed Costs: $666 per customer Variable Costs: $14.17 per foot Single Phase Overhead Secondary Circuit: Fixed Costs: $2-,2-1-2 per customer Issued March 29, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Twenty-Sixth Revision Sheet 510 Canceling I.P.U.C. No.28 Twenty-Fifth Revision Sheet 510 510 AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued h. "Service Circuit" is the electrical facility between the Company's Transformer, connectors, or handhole and the Point of Delivery for a single Customer or building. The Service Circuit is single phase*, is operated at less than 600 volts to ground and may include conductors, connectors, conduit, and ditch. The Basic and Exceptional Cost of the Service Circuit shall be computed using the following rates. These rates do not include meters and metering facilities which are used by the Company for billing purposes. Single Phase Overhead Service Circuit: Variable Costs: $5-.02 per foot Single Phase Underground Service Circuit: Variable Costs: $10.46 per foot i. "Transformer" Basic and Exceptional Cost shall be computed using the following rates for single phase transformers. Single Phase Overhead Transformer Costs: $5-,G2-5 per Customer Single Phase Padmount Transformer Costs: $9-,4-43 per Customer j. "Underground Facilities" may include primary cable, secondary and service cable, secondary and service connections, surface-type (pad- mount) Transformers, pads, enclosures, terminations, and conduit where necessary. These facilities will be owned, operated and maintained by the Company unless otherwise provided for by agreement. Issued April 24, 2024 Effective May 15, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Fifth Revision Sheet 51 Canceling I.P.U.C. No.28 Fourth Revision Sheet 51 51 AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 LINE EXTENSION, CONVERSION AND RELOCATION SCHEDULE IDAHO 1. APPLICABILITY The rules for Line Extensions in this Schedule apply to all existing and prospective Customers requesting a new line extension. The rules for Conversions and Relocations in this Schedule apply to all Customers requesting changes to existing facilities. 2. GENERAL RULES: a. Every Customer who wants the Company to design a line extension must first submit a written application. A $1,000 application fee will be required for load requests of 3 MVA or greater. A Design Fee of$150 may be required for any line extension, Conversion of Primary Circuit, or Relocation of Primary Circuit., that is unusually large, complex, or of a questionable nature, and for each additional design requested. b. The Company shall have the right to enter and exit the Customer's property to construct, reconstruct, operate and maintain the line extension. The Company's agents and employees shall have access at all reasonable times for reading, inspecting, constructing, reconstructing, repairing and removing the Company's meters, metering equipment and electric facilities. C. All necessary right-of-way assignments, easements and permits across other properties will be secured at no cost before the Company constructs the line extension. d. The length, depth, Point of Delivery, location, route, phases, voltage, capacity and cost of the Line Extension shall be determined by the Company. The line extension shall be compatible with existing neighboring electric facilities. e. Premises where the Company's electric facilities have been removed or otherwise disconnected for longer than twelve months, and where a customer wants service re-established, will be treated as a new customer and granted an allowance. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Supplemental Eleventh Revision Sheet 51 B Canceling I.P.U.C. No.28 Tenth Revision Sheet 51B 51B AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued When two or more Customers apply concurrently for service from the same Line Extension, each will receive an Allowance up to their proportion of the Basic and Exceptional Cost of the line extension. Allowances shall be granted only against the Basic and Exceptional Cost of the current project and not against any part of an earlier or future extension. The Allowance will be equal to the Basic and Exceptional Cost or the applicable amount listed below, whichever is less: MAXIMUM ALLOWANCE Schedule 1 individual Customer $2,545 per unit Schedule 1 duplex $2,035 per unit Schedule 1 multiplex $1,530 per unit EXCEPTION: The Company will not grant an immediate Allowance if the Company, in its sole judgement, determines that the load: a) is less than 2500 kWh per year, or b) will be in service less than five years. A mobile home will not qualify for an Allowance until it has permanent connections to both water service and either a sewer or septic system. If such connections are made within five years after the completion of the line extension, the Company will, at that time, refund the Basic and Exceptional Cost or the amount of the Allowance in effect at the time of the line construction, whichever is less. The Customer must apply for the refund before the line extension becomes six years old. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Seventh Revision Sheet 51 E Canceling I.P.U.C. No.28 Twenty-Sixth Revision Sheet 51 E 51 E AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued 5) "Share of Previous Extension" applies only to Primary Circuits less than five years old. If part of a previous line extension is used to serve a new Customer, the new Customer must pay a share of the previous Primary Circuit cost and Transformer cost, if shared, to the Company before the start of construction. The amount paid by the new Customer will be refunded to existing Customers in relation to their share of the Primary Circuit and Transformer, if shared. The Company will refund appropriate shares to the bearers of Extension Certificates when the Certificates are presented for payment and the connection of the subsequent Customer has been verified. The Company will make a reasonable attempt to inform the bearer of the Certificate when a refund is due. Bearers of Extension Certificates must apply for refunds before the original line extension becomes six years old. Unclaimed refunds will be returned to the contributor. EXAMPLE: 1. First Customer pays $13,550 for 1,000 feet of primary underground circuit 13.55 per foot). 2. Second Customer takes service within five years using 600 feet of the original extension. 3. Both Customers share the first 600 feet equally: 600 ft x $13.55/ft x '/2 = $4,065. 4. The Second Customer's payment of$4,065, will be refunded to the First Customer to reduce his investment in the 600 feet to $4,065. The First Customer's investment in the remaining 400 feet remains at $5,420. ($13,550-$4,065-$4,065=$5,420) EXCEPTION: If the refund to an existing Customer is less than $100 each, the new Customer will not be required to pay that share and the existing Customer will not receive a refund. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Sixth Revision Sheet 51 F Canceling I.P.U.C. No.28 Twenty-Fifth Revision Sheet 51 F 51 F AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued 4. RULES AND CHARGES FOR UNDEVELOPED RESIDENTIAL LOTS a. A development is a group of neighboring undeveloped lots separated by no more than streets and under the ownership or legal control of a single party as determined by the Company. Both the General Rules and the following rules apply to line extensions within residential developments. b. Before Company facilities will be installed, the developer must submit a written application for service, a copy of the plat as approved by the governing agency depicting dedicated utility easements approved by the serving utilities and must pay an extension cost to the Company which is computed as follows: Basic and Exceptional Cost + Customer-Requested Costs - Cost Reductions (one) Design Fee of$150 (if paid) = extension cost within development + cost of extension to development + Share of Previous Extension extension cost 1) "Basic and Exceptional Cost" will be computed from the following rate per lot when the Development serves single phase loads, has at least six lots and the average frontage is no more than 175 feet per lot. The Basic and Exceptional Cost includes the cost of the Primary Circuit, the Transformer and the Secondary Circuit in the utility easement or public right-of- way, but does not include the Service Circuit from the point of connection with the Secondary Circuit to the Point of Delivery. Developments: $3,333 per Lot Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Seventh Revision Sheet 51G Canceling I.P.U.C. No.28 Twenty-Sixth Revision Sheet 51G 51G AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued The Basic and Exceptional Cost for all other Developments will be computed from the rates listed in this Schedule for Service Circuits, Secondary Circuits, Transformers and Primary Circuits. 2) "Cost Reductions, "Customer-Requested Costs, and "Share of Previous Extension" are described under Rules for Individual Customers. 3) "Extension to development" is the line extension between the Company's existing energized electric facilities and the boundary of the development. The Rules for Individual Customers apply to the extension to the development. C. In lieu of a cash payment of the Basic and Exceptional Cost in a Development, the Company will accept a letter of credit, a contractor's performance bond, or another credit instrument agreeable to the Company for $3,333 per lot upon execution of a written agreement with the Developer. The agreement shall prescribe the requirements for such a credit instrument and shall permit the face amount of the instrument to be reduced annually as new customers are connected within the Development. The Developer will provide ditching within the Development. d. Prior to the installation of the Service Circuit to each single-family residence in a development, the home builder will be required to make a non-refundable cash payment to the Company of$1,304 per residence. There will be no charge to the builder for the installation of the Service Circuit to serve a duplex or multiplex dwelling. e. A Developer who pays the extension cost described in 4.b.1) may apply for a refund annually for each permanent Customer connected within the Development during the first five years from the start of construction after the extension is completed. The Company will make a reasonable attempt to inform the bearer of the certificate when a refund is due. The Company will pay the refund to the bearer of the Extension Certificate when it is presented to the Company for payment and the connection of the permanent Customer has been verified. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Fifth Revision Sheet 51 H Canceling I.P.U.C. No.28 Twenty-Fourth Revision Sheet 51 H 51 H AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued For Developers who have made a cash payment to the Company for the Basic and Exceptional Cost in the development, the sum of all refunds shall not exceed the total Basic and Exceptional Cost paid by the Developer or $3,333 per lot multiplied by the number lots, whichever is less. The developer must apply for the refunds before the line extension becomes six years old. f. In a Development where primary taps may be required into some lots to provide adequate service or where the loads are not clearly defined, the Company may elect to install only an initial Primary Circuit through the Development (no Transformers or Secondary Circuits). The Rules for Individual Customers will be used to establish the extension cost of the Primary Circuit and that cost must be paid in advance by the Developer. The permanent Customer on each lot must meet the Rules for Individual Residential Customers for the extension into the lot, except they will not pay a share of the cost of the Primary Circuit through the Development or a share of previous extensions outside the Development. The applicable Allowance will be credited first to the Basic and Exceptional Cost to serve the permanent Customer. The Developer will be refunded only the portion of the Allowance not granted or applied to the permanent Customer. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twelfth Revision Sheet 51J Canceling I.P.U.C. No.28 Eleventh Revision Sheet 51J 51J AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 — continued 1) The Total Estimated Extension Cost shall include all costs which are necessary to provide service to the Customer, as determined by the Company. The amount of the Allowance will be determined individually for each Customer based on the Company's estimate of the Customer's annual metered energy usage (delivered by Avista) and an allowance per kWh based on the applicable service schedule. d. When two or more Customers apply concurrently for service from the same Line Extension, each will receive an Allowance up to their proportion of the Total Estimated Extension Cost. Allowances shall be granted only against the costs of the current project and not against any part of an earlier or future extension. The Allowance will be the Total Estimated Extension Cost, or the applicable Allowance by Schedule multiplied by the Customer's estimated metered energy usage (delivered by Avista), whichever is less: ALLOWANCE BY SERVICE SCHEDULE Schedule 11 or 12: $0.19912 per kWh Schedule 21, 22 or 23: $0.18388 per kWh Schedule 31 or 32: $0.32929 per kWh Exception: The Company will not grant an immediate Allowance if the Company, in its sole judgement, determines that the load is unknown, or will be in service less than five years. If an Allowance is not provided at the time service is installed, the Customer is eligible to receive a refund of their Allowance when annual metered energy usage (delivered by Avista) is known and measured. Any refund of Customer Allowance must be requested by the Customer within five years of the service installation. Undeveloped Commercial and Industrial Lots: A development is a group of neighboring undeveloped lots separated by no more than streets and under the ownership or legal control of a single party as determined by the Company. The General Rules, the Rules for Commercial and Industrial Customers and the following apply to line extensions within commercial or industrial developments. Before Company facilities will be installed, the developer must submit a written application for service and a copy of the plat as approved by the governing agency depicting dedicated utility easements approved by the serving utilities. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Qau-jD-w*---- Supplemental Fourth Revision Sheet 51 M Canceling I.P.U.C. No.28 Third Revision Sheet 51 M 51 M AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 — continued inspection of those utilities at reasonable times and the trimming or removal of brush and trees that may interfere with the construction, maintenance or operation of those utilities. d. "Design Fee" is a $150.00 payment to the Company by the Customer requesting a Line Extension, Conversion, or Relocation, in advance of the Company preparing the design. A Design Fee may be collected for any Line Extension, Conversion of Primary Circuit, or Relocation of Primary Circuit that is unusually large, complex, or of a questionable nature. Design Fees may be collected for additional designs if the Customer requests more than one design. For all load requests, the actual costs of any additional system impact studies will be paid by the customer. e. "Exceptional Cost" is the cost of labor and/or materials which are necessary to construct the Line Extension but which are not included in the Basic Costs, including, but not limited to the following: a) trenching costs in excess of dirt trench b) boring or jacking under roads or rails c) pavement removal and replacement d) rights of way, permits, surveying e) riser for UG in OH area f) removal of trees and shrubs, or restoration of Customer property in excess of the replacement of sod and general cleanup. f. "Extension Certificate" is a transferable certificate which entitles the bearer to receive certain refunds. Certificates will be issued to all Customers paying for a Primary Circuit, including Developers. The conditions under which refunds will be paid are described in this Schedule and on the Certificate. g. "Point of Delivery" is the location on the Customer's premises where the Company's service conductors and the Customer's service entrance conductors are connected at a common point to permit a single meter installation. The Point of Delivery will be designated by the Company. h. "Primary Circuit" is the electrical facility between the Company's existing energized primary facilities and the proposed Transformer. The Primary Circuit is single phase, is operated at 2400 to 20, 000 volts to ground and may include conductors, connectors, supporting structures, conduit and ditch. The Basic and Exceptional Cost of the Primary Circuit shall be computed using the following rates. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Supplemental Twenty-Sixth Revision Sheet 51 N Canceling I.P.U.C. No.28 Twenty-Fifth Revision Sheet 51 N 51 N AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued Single-Phase Overhead Primary Circuit: Fixed Costs: $5,536 per Customer Variable Costs: $11.20 per foot Underground Primary Circuit: Fixed Costs: $2,583 per Customer Variable Costs: $13.55 per foot g. "Secondary Circuit" is the electrical facility from the Company's Transformer to a handhole or connectors from which one or more Service Circuits originate. The Secondary Circuit is single phase, is operated at less than 600 volts to ground and may include conductors, connectors, conduit, handholes, and ditch. The Basic and Exceptional Cost of the Secondary Circuit shall be computed using the following rates. Single Phase Underground Secondary Circuit: Fixed Costs: 647 per customer Variable Costs: $12.75 per foot Single Phase Overhead Secondary Circuit: Fixed Costs: $2,279 per customer Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p Supplemental Twenty-Seventh Revision Sheet 510 Canceling I.P.U.C. No.28 Twenty-Sixth Revision Sheet 510 510 AVISTA CORPORATION dba Avista Utilities SCHEDULE 51 - continued h. "Service Circuit" is the electrical facility between the Company's Transformer, connectors, or handhole and the Point of Delivery for a single Customer or building. The Service Circuit is single phase*, is operated at less than 600 volts to ground and may include conductors, connectors, conduit, and ditch. The Basic and Exceptional Cost of the Service Circuit shall be computed using the following rates. These rates do not include meters and metering facilities which are used by the Company for billing purposes. Single Phase Overhead Service Circuit: Variable Costs: $5.06 per foot Single Phase Underground Service Circuit: Variable Costs: $10.29 per foot i. "Transformer" Basic and Exceptional Cost shall be computed using the following rates for single phase transformers. Single Phase Overhead Transformer Costs: $5,308 per Customer Single Phase Padmount Transformer Costs: $10,003 per Customer j. "Underground Facilities" may include primary cable, secondary and service cable, secondary and service connections, surface-type (pad- mount) Transformers, pads, enclosures, terminations, and conduit where necessary. These facilities will be owned, operated and maintained by the Company unless otherwise provided for by agreement. Issued May 27, 2025 Effective June 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs p