HomeMy WebLinkAbout20211105Avista to Staff 1-11.pdfruRISDICTION
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
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AYISTA CORPORATION E"l?i HfiY -5 &H } h8
RESPONSE TO REQITEST FOR INFORMATTON i;j.-_i:.i r,ul;li0
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AVU-E-21-13 WITNESS: N/AIPUC RESPONDER: Shawn Bonfield
Production Request DEPARTMENT: Regulatory AffairsStaffi0l TELEPHONE: (509) 495-2782
REQUEST:
How many DC fast charging sites does the Company own and how many are in service? Ftnal
Report at 2.
RESPONSE:
The Company owns and maintains seven DC fast charging sites, and all seve'n are in service.
AYISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
ruRISDICTION: IDAHO
CASE NO: AW-E-21-13
REQUESTER: IPUCTYPE: Production Request
REQUEST NO.: Staff-O2
DATE PREPARED: 1012012021WITNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHONE: (509) 49s-2782
REQUEST:
Please provide a workpaper that supports the calculation of all values listed in Table I of the Final
Report. Ftnal Report at 4.
RESPONSE:
Please see Staff-PR-02-Attachment A.
AVISTA CORPORATION
RESPONSE TO REQITEST FOR INFORMATION
ruRISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-21-13
IPUC
Production Request
Stafl03
DATE PREPARED: 1012012021MTNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHONE: (509) 495-2782
REQUEST:
Please provide a workpaper that shows how $1,206 per EV in net grid benefits was calculated.
Final Report at 6.
RESPONSE:
Please see Staff-PR-03-Attachment A.
AYISTA CORPORATION
RESPONSE TO REQUEST rOR TNFORMATTON
ruRISDICTION: IDAHO
CASE NO: AW-E-21-13
REQUESTER: IPUCTYPE: Production Request
REQUEST NO.: Staff-04
DATE PREPARED: 1012012021WITNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Afflairs
TELEPHONE: (s09) 49s-2782
REQUEST:
Please provide a workpaper that shows how a $1,661 per EV net benefit was calculated. Final
Report at 6.
RESPONSE:
Please see the Company's response Staff-PR-03-Attachment A.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
ruRISDICTION
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-2I-13
IPUC
Production Request
Staff-05
DATE PREPARED: 1012012021WITNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHoNE: (509) 49s-2782
REQUEST:
Please itemize cost components in the "Utility Generation and Delivery Cost" column in Table 7
Trarcportation Electrification Plan, Exhibit2, at 41.
RESPONSE:
Cost components of the Utility Ge'neration and Delivery Cost include added energy costs from the
additional load of EVs for each year (estimated by the number of EVs multiplied by the average
kWh consumption of each EV), and added capacity costs derived by the additional peak load of
EVs when the system is capacity constrained beginning in2026. These energy cost components
are listed in Table 5 of the Transportation Electrification Plan on page 40 as "Table 5: 2020 IRP
energy costs," representing the average incremental energy and capacity cost to serve Avista
customers. A more detailed description of these costs can be found in the 2020IRP, pages ll-20
and ll-24.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR TNFORMATTON
ruRISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-21-13
IPUC
Production Request
Staff-06
DATE PREPARED: 10l20l202lWITNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHONE: (s09) 49s-2782
REQUEST:
Please describe how these market transformation progrcms promote energy efEciency.
Specifically, please describe how they reduce the amount of energy used.
RESPONSE:
In terms of electrical energy efficiency, EV energy consumption optimally occurs during off-peak
hours of the day and night, utilizing AC Level 2 supply equipment. For example, if more
employers provide AC Level 2 workplace charging for commuting employees, a much higher
percentage of charging may occur during off-peak daylight hours while the vehicle is parked at
work, avoiding on-peak charging in the late afternoons and evenings that coincide with on-peak
times throughout the year. A large number of commercial fleet vehicles may similarly be charged
during off-peak times of the day and night, at-scale providing for a more efficient delivery of
energy for the system as a whole. Furthermore, supplied electricity at Level 2 (240V) compared to
Level I (120V), reduces electrical resistive energy losses due to the higher voltage and lower
electrical current utilized.
ln a broader sense, the most impactful energy efficiency and overall cost savings are realized by
the use of electricity as a fransportation fuel, rather than petroleum-derived fuels such as gasoline
and diesel. As stated by the U.S. Dept of Energy, "EVs are more efficient than their
gasoline-powered counterparts. An EV electric drive system is only responsible for a l5%o to 20%o
energy loss compared to 640/o to 75%o for a gasoline engine. EVs also use regenerative braking to
recapture and reuse energy that normally would be lost in braking and waste no energy idling . . .
EVs are 60Yo to 73Yo efficient, depending upon drive cycle. However, if the energy recaptured
from regenerative braking is counted (i.e., recounted when it is re-used), EVs are 77o/o to 100%
effi cient." (https://www. fueleconomy. gov/feg/atv-ev.shtml).
The typical light-duty EV travels 3.3 miles per kWh, compared to an average of 24 mpg for short
wheel base and 18 mpg for long wheel base vehicles in the U.S. in 2019 (Bureau of Transportation
Statistics, Average Fuel EfEciency of U.S. Light Duty Vehicles, accessed at
https ://www.bts. eov/content/averase-fu el-effi ciency-us-li ght-duty-vehicles).
Customers that drive electric consume far less energy on a per-mile basis, paying less than
$l/gallon gasoline equivalent, while reducing emissions by 80%o, utilizing a domestic energy
source.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
ruRISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AW-E-21-13
IPUC
Production Request
Stafl07
DATE PREPARED: 1012012021WTINESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: RegulatoryAffairs
TELEPHONE: (509) 495-2782
REQUEST:
In the Company's first area of focus on "integrated charging, on-site renewables, and battery
storage research," please answer the following about the proposal to "develop and implement a
research project and report summarizing the current state of integrated stations":
a. When is the estimated completion of the research?
b. Please provide workpapers and a breakdown for the estimated annual expenses for
this research. Please provide the workpapers in Excel format, with all formulas
intact.
c. Please provide workpapers and a breakdown for the estimated total cost to
complete this research. Please provide the workpapers in Excel format, with all
formulas intact.
d. How will the research be presented and who will be able to access it?
RESPONSE:
a. The research phase of this project will focus on learning what is known about
integrated charging sites, and what is not known. This research will investigate
what equipment is available off the shelf and what equipment will need to be
designed. Industry experts and other organizations that have completed work on
this topic will be contacted to leverage their existing knowledge into ours. The
research phase ofthe project will be completed by the end ofthe third quarter 2023.
b. Annual costs for this project are estimated at $9,375. Please see the Company's
response Staff-PR-07-Attachment A.
c. Total costs for this project are estimated at $18,750. Please see the Company's
response Stafl-PR-07-Attachment A.
d. A report will be created at the end of the research detailing our findings and laying
out a path forward for the design phase. This report will be made public.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
ruRISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AW-E-21-13
TPUC
Production Request
Staff-08
DATE PREPARED: 1012012021WITNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHONE: (s09) 49s-2782
REQUEST:
In the Company's first area of focus on "integrated charging, on-site renewables, and battery
storage research," please answer the following about the proposal to "develop a parametric model
used to identifr variable cost factors and resulting charging outputs on an ongoing basis":
a) When is the estimated completion of the area of focus?
b) Please provide workpapers and a breakdown for the estimated annual expenses for this area of
focus. Please provide the workpapers in Excel format, with all formulas intact.
c) Please provide workpapers and a breakdown for the estimated total cost to complete this area
of focus. Please provide the workpapers in Excel format, with all formulas intact.
d) How could the paramekic model be implemented for use?
e) Does the Company anticipate future cost after completion in order to maintain the parametric
model?
RESPONSE:
a) The parametric model will be developed in conjunction with the research phase of the project.
This phase will be completed by the end of the third quarter 2023.
b) Annual costs for this project are estimated at $3,125. Please see Staff-PR-07-Attachment A.
c) Total costs for this project are estimated at $6,250. Please see Staff-PR-07-Attachment A.
d) This model will compare the cost effectiveness ofbuilding a standard DC fast charging station
to that of an integrated charging station with on-site renewables and storage. Standard DC
station cost parameters will include all infrastructure, charging equipment, labor, network fees,
ongoing charger maintenance, and annual electric bills. Station benefits will include charging
fee revenue as well regional benefits seen by reducing greenhouse gas ernissions. Integrated
DC stations cost parameters will include all of the same parameters as standard DC fast
charging stations and add costs for battery storage, solar panels, and wind turbines. Station
benefits will include all of those listed above and add the monetary value of the energy
generated on site, as well as the reduction in greenhouse gas emissions from generation. In
addition, the cost of the on-site storage and generation will be compared to the cost to bring
three phase power to the site.
e) There will be some ongoing costs to maintain the parametric values in the model. Electric
rates, equipment efficiencies, labor rates, etc.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-21-13
IPUC
Production Request
Stafl09
DATE PREPARED: 1012012021WITNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHONE: (509) 49s-2782
REQUEST:
In the Company's first area of focus on "integrated charging, on-site renewables, and battery
storage research", please answer the following about the "construction project design and
implementation plan" proposed and how the area of focus will be scalable:
a. What specifically will be included in the design? Integrated charging with batteries
and onsite re,newables? Will the Company propose various designs with different
Electric Vehicle chargrng station designs? Will the project be designed for
residential, workplace, commercial, industrial, or other facilities?
b. Who will be able to access the designs and implementation plan? How will they be
able to use this information
c. What are the components that would need to change on the project design to be able
to implement the design at various locations, i.e., Geographical Information
System data, electrical diagrams, onsite renewables designs?
d. When is the estimated completion of this area of focus?
e. Please provide workpapers and a breakdown for the estimated annual expenses for
this area of focus. Please provide the workpapers in Excel format, with all formulas
intact.f. Please provide workpapers and a breakdown for the estimated total cost to
complete this area of focus. Please provide the workpapers in Excel format, with
all formulas intact.
g. Does the Company anticipate future cost after completion in order to maintain the
results and assist future customers with the implementation of this design?
RESPONSE:
a. Please see the answers below to each part this request.
i. Avista has developed a standard DC Fast charging station through the work
completed in the pilot and studying what technology is currently available and
what the market currently needs. The stations have been designed with
expansion in mind. As the market needs change these stations can be upgraded
to incorporate higher powered DC chargers. The initial build out for these
stations include:
l. 500kW Transformer and electric meter. Transformer pad is sized for lMW
unit.
2. 480V 3phase electric panel (DC Chargers fed from this panel.)
3. Step down transformer and 240V single phase panel (AC Level II
Chargers fed from this panel.)
4. All the underground electrical conduit that runs from the panels to
chargers. Conduit is also run to future charger locations.
5. Two 9.6kW AC Level II chargers.
6. One l80kW DC Fast Charger.
7. An additional l80kw DC fast charger can be installed before the
transformer needs to be upgraded.
The second phase of the build out will add the following:
l. The 500kW transformer will be upgraded to a IMW transformer
2. Two 350kW DC super chargers will be installed.
ii. Through our research we will incorporate a large battery storage array on site as
well as a solar canopy that will cover the battery storage. Wind generation will
also be considered.
iii. We will propose two use cases. The first will be for areas in our service territory
where three phase power is not readily available and there is a need for fast
charging capabilities. This situation can arise in many small towns located
along major travel corridors.
The second will be for areas where our electic grid is capacity constrained and
cannot support a IMW charging load without potentially damaging substation
transformers.
iv. This project will be designed primarily for public charging. There is a growing
demand for more public charging that is reliable and includes fast charging
capabilities. The addition of onsite storage and renewable generation will
enable us to provide reliable and fast charging to more areas in our service
territory. In addition, this design could be modified for fleet customers who
need DC fast charging and want to offset their fleets energy use with
renewables.
b. The engineered designs and drawings are not intended to be made available to the
general public. They may be used to consult with inquiring customers, supporting
private investment in EVSE in Avista's service territory where grid capacity is
constrained, and for any DCFC sites that Avista may own and maintain in the
future, where appropriate. Fleet customers will have the opportunity to benefit from
these designs through fleet electrification consulting services provided by Avista.
If this model is a good fit for a customer, we will work with them to leverage the
knowledge and standard design afforded by the model.
c. The size of the battery storage, solar and wind generation options will be modular
in design and optimized at each site to match the outputs of the DC stations and
forecasted demand for drivers. The overall layout of the station will need to be
tailored to each site's geographical footprint. A grid impact analysis will be
conducted for each site. If the site is identified as being grid constrained the size of
the battery storage may be adjusted to appropriately match grid constraints.
d. This phase will be completed by the end of the third quarter 2023.
e. Annual costs for this project are estimate at $25,000. $12,500 will be allocated for
internal labor and $12,500 will be allocated or consulting fees. These consulting
fees may include conferring with subject matter experts, work with Avista's Grid
Innovation Lab, conhols design, and drafting. Please see the Company's response
Staff-PR-07-Attachment A.
f. Total costs for this project are estimated at $50,000. $25,000 will be allocated for
intemal labor and $25,000 will be allocated for consulting fees. Please see the
Company's response Staff-PR-07-Affachment A.
g. There will need to be periodic updates to the final design as technology evolves. If
the design was to be used by a fleet customer there will be labor costs for time spent
consulting the customer and managing construction.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
ruRISDICTION
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AW-E-21-13
IPUC
Production Request
Staff-10
DATE PREPARED: 1012012021WITNESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHONE: (509) 49s-2782
REQUEST:
In Order No. 35129, at page 9, the Commission ordered that "the Company shall propose and seek
approval of an updated R&D progftIm that includes metrics and measurable targets." Please
describe how the Company will provide metrics and measurable targets for each of the 3 areas
proposed in the "integrated charging, on-site renewable, and battery storage research" areas on
page 8 of the Application, lines 7-12, and the "workplace, fleet, and rural access charging
infrastructure" program.
RESPONSE
Project milestone progress to target dates, and actual to target spending will be tracked and
reported annually for each of the three areas of the integrated charging, on-site renewable, and
battery storage research project, along with a narrative description of the work completed and
rernaining to successful project completion.
Mehics for the workplace, fleet, and rural access charging infrastructure program will also be
reported annually, including installation site information, install costs, O&M costs, oZ uptime,
energy consumption and customer satisfaction. Customer fuel cost savings and emissions
reductions may be derived from customer information and energy consumption. A narrative will
be included with the metrics information, providing more background information on program
activities and insights.
AYISTA CORPORATION
RESPONSE TO REQT EST FOR TNFORMATION
JURISDICTION: IDAHO
CASE NO: AW-E-21-13
REQUESTER: IPUCTYPE: Production Request
REQUEST NO.: Staff-l1
DATE PREPARED: 1012012021WTINESS: N/A
RESPONDER: Shawn Bonfield
DEPARTMENT: Regulatory Affairs
TELEPHONE: (s09) 49s-2782
REQUEST:
Please provide workpapers and supporting documentation and calculations for the proposed
charging infrastructure of $360,000. Please provide the workpapers in Excel format, witlt all
formulas intact.
RESPONSE:
Please see Staff-PR-l l -Attachmelrt A.