20250916Comments - T. Sorenson.pdf

RECEIVED
September 16, 2025
C. Tom Arkoosh, ISB No. 2253 IDAHO PUBLIC
Nicholas J. Erekson, ISB No. 9325 UTILITIES COMMISSION
ARKOOSH LAW OFFICES
913 W. River Street, Suite 450
P.O. Box 2900
Boise, ID 83701
Telephone: [phone]
Facsimile: [phone]
Email: tom.arkooshgarkoosh.com
nick.ereksongarkoo sh.com
Admin copy: erin.cecilgarkoosh.com
Attorneys for IdaHydro
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF THE APPLICATION ) Case No. IPC-E-25-22
OF IDAHO POWER COMPANY FOR )
AUTHORITY TO UPDATE ITS ) COMMENTS OF TED SORENSON
OPERATION AND MAINTENANCE ) FOR IDAHYDRO
CHARGES APPLICABLE TO SCHEDULE )
72, GENERATOR INTERCONNECTIONS )
TO PURPA QUALIFYING FACILITY )
SELLERS. )
COMES NOW the Idaho Hydroelectric Power Producers Trust, an Idaho Trust, d/b/a
IdaHydro ("IdaHydro'), by and through its counsel of record, C. Tom Arkoosh and Nicholas J.
Erekson of Arkoosh Law Offices, and pursuant to the Notice of Modified Procedure, Order No.
36714, entered on August 11, 2025, hereby submits the following comments of Ted Sorenson,
Member of IdaHydro:
1. My name is Ted Sorenson. I have a Master of Engineering in civil engineering from
the University of Idaho, Moscow, Idaho. I have been practicing civil engineering for 47 years.
2. I was registered as a professional engineer(currently entering retired status):
• State of Washington#18879
• State of Idaho#3458
• State of Wyoming#3508
• State of Oregon#13890
• State of Montana#15057
• State of Colorado #45130
COMMENTS OF TED SORENSON FOR IDAHYDRO—Page 1

3. I am a principal of Sorenson Engineering ("Sorenson"), which is a member
project of IdaHydro. I have designed 48 hydroelectric-related projects, all of which are still
operating. There are 19 projects designed, owned, and operated by Sorenson. Sorenson owns
or leases and operates an additional 11 projects.
4. My resume is attached hereto as Exhibit A.
5. I am aware of and knowledgeable about the design and costs of building,operation,
and maintenance of interconnections with small hydro facilities operated under the auspices of the
Public Utilities Policy Act of 1978 ("PURPA").
6. With utilities other than Idaho Power Company("Idaho Power")to whom Sorenson
sells energy from small hydro PURPA projects, Sorenson either (1) pays an annual O&M of
approximately 2%2%to 3%of original construction costs, (2)pays the actual O&M as incurred, (3)
paid a one-time O&M charge, or(4) operates and maintains the interconnections itself.
7. These interconnections are usual in design, commonly being a four-pole
interconnection.
8. Generally, a typical four-pole interconnect costs between $140,000 and $180,000
to construct.
9. These technology of these interconnects dates back before the passage of PURPA.
The interconnects are reliable, stable, and require little attention,most lasting 20-30 years or more
without active work or preservation.
10. Attached hereto as Exhibit B is a spreadsheet showing, since 2014, payments to
Idaho Power for operation and maintenance of interconnects for the Sorenson-operated plants that
sell energy to Idaho Power.
11. Different than Schedule 72, PacifiCorp charges actual operation and maintenance
costs for PURPA plants if and when charges are incurred.
12. The technology and equipment in Idaho Power and PacifiCorp interconnects are
materially the same.
13. My understanding is that Idaho Power charges for operation and maintenance based
upon a formula that charges PURPA projects a percentage of all the operation and maintenance of
Idaho Power's transmission or distribution systems equal to the PURPA project's construction
cost compared to overall system construction costs. As demonstrated above, this formula does not
accurately measure or even approximate the actual cost of operation and maintenance of PURPA
COMMENTS OF TED SORENSON FOR IDAHYDRO—Page 2

four-pole interconnections. This is because of the proven reliability and useful life of the four-pole
interconnection compared to the expense of operating Idaho Power's overall
transmission/distribution systems.The consequence is an unreasonable windfall to either the utility
or its ratepayers, depending upon who retains the benefit of the overcharge. My understanding of
PURPA from my years involved with these small hydro plants and their regulation requires the
ratepayer to be left indifferent, neither benefited nor harmed. The current charges contravene this
principle.
14. Idaho Power reports it does not record the actual costs incurred under Schedule 72.
While it is surprising Idaho Power is incurring unrecorded costs, as set forth above, other utilities
can and do record and bill for Schedule-72-type expenses.
DATED: 9/15/2025
ID bja7CdAajw47b7A3fl1jAaoE
Ted Sorenson
COMMENTS OF TED SORENSON FOR IDAHYDRO—Page 3

CERTIFICATE OF MAILING
I HEREBY CERTIFY that on the 16th day of September 2025, I served a true and correct
copy of the foregoing document(s)upon the following person(s), in the manner indicated:
IDAHO PUBLIC UTILITIES U.S. Mail, Postage Prepaid
COMMISSION: Overnight Courier
Commission Secretary Hand Delivered
Idaho Public Utilities Commission Via Facsimile
11331 W. Chinden Blvd., Building 8, _X_ E-mail:
Suite 201-A (83714) secretarykpuc.idaho.gov
P.O. Box 83720
Boise, ID 83720-0074
IDAHO PUBLIC UTILITIES U.S. Mail, Postage Prepaid
COMMISSION STAFF: Overnight Courier
Jeff Loll Hand Delivered
Deputy Attorney General Via Facsimile
Idaho Public Utilities Commission _X_ E-mail:
11331 W. Chinden Blvd., Building 8, jef.lollkpuc.idaho.gov
Suite 201-A (83714)
P.O. Box 83720
Boise, ID 83720-0074
IDAHO POWER:
Donovan E. Walker U.S. Mail, Postage Prepaid
IPC Dockets Overnight Courier
Idaho Power Company Hand Delivered
1221 W. Idaho Street (83702) Via Facsimile
P.O. Box 70 _X E-mail:
Boise, ID 83707 dwalker(kidahopower.com
dockets(k idahopower.com
Tim Tatum U.S. Mail, Postage Prepaid
Riley Maloney Overnight Courier
Idaho Power Company Hand Delivered
1221 W. Idaho Street (83702) Via Facsimile
P.O. Box 70 _X_ E-mail:
Boise, ID 83707 ttatum(kidahopower.com
rmaloney(kidahopower.com
COMMENTS OF TED SORENSON FOR IDAHYDRO—Page 4

RENEWABLE ENERGY U.S. Mail, Postage Prepaid
COALITION: Overnight Courier
Irion Sanger Hand Delivered
Sanger Greene,P.C. Via Facsimile
4031 SE Hawthorne Blvd. _X_ E-mail: irion(cr�,sanger-law.com
Portland, OR 97214
C. Tom Arkoosh
COMMENTS OF TED SORENSON FOR IDAHYDRO—Page 5

TED S. SORENSON, P.E.
Address:1633 Lake Blaine Rd, Kalispell, MT 59901
Cell:[phone]
Email:[e-mail]
WORK EXPERIENCE
September 1, 1980 to Present
Founder of Sorenson Engineering, Inc.. Designer of over 50 hydroelectric facilities. Ownership/operation of 30
hydroelectric facilities. Experience in developing, permitting, designing, constructing,owning, and operating hydro
projects. Determined to be qualified steward/transferee of numerous FERC licenses.
January 1976 to September 1, 1980
Project Engineer with H&V Engineers, Moscow, Idaho
May 1975 to August 1975
Engineer with U.S. Public Health Service, Indian Health Service, Nespelem,Washington
EDUCATION
University of Idaho, Moscow, Idaho:
Degree: Bachelor of Science in Civil Engineering
Graduate Degree: Master of Engineering in Civil Engineering
Special Emphasis in University: Sanitary Engineering and Water Resources.
PROFESSIONAL ORGANIZATIONS
National Society of Professional Engineers
Idaho Society of Professional Engineers
National Hydropower Association
REGISTRATIONS
Professional Engineer,State of Colorado#45130
A

SORENSON ENGINEERING-HYDROELECTRIC PROJECT LIST
SUMMARY
Ted S. Sorenson P.E., principal of Sorenson Engineering, has designed nearly 50 hydroelectric
plants over the past 40 years.These projects are listed below. Projects which are owned, operated, and
designed by Sorenson are shown separately. Sorenson has also purchased several projects that he did
not design (also shown below). Project totals are below.
1. Hydroelectric Related Projects Designed by Sorenson (48)
-All Completed Projects are still Operating
2. Hydroelectric Projects Designed, Owned, and Operated by Sorenson (19)
3. Hydroelectric Projects not Designed but Owned/Leased and Operated by Sorenson (11)
DESIGNED HYDROELECTRIC PROJECTS
1. Pueblo Dam Hydroelectric
Commissioned 2019
Capacity:8.1MW
Head:80-135'
Flow: 810 CFS
-Three Horizontal Francis Units
Location: Near Pueblo, Colorado
Construction Cost: $17,000,000
2. Beaver City Hydro#3 1
Commissioned 2018
Capacity:650 kW
Head: 350'
Flow: 25 CFS
Twin Jet Pelton
Location: Beaver, Utah
Construction Cost: $2,000,000
3. Littlewood River Ranch II Hydroelectric Project
Commissioned 2015
Capacity: 1.2MW
Head: 35'
Flow: 500 CFS
-Vertical Kaplan
Location: Near Gooding, Idaho

4. Eightmile Hydroelectric « Y
Commissioned 2014
Capacity:0.4MW -_ -
Head: 333'
Flow: 21 CFS s
-Twin Jet Pelton Turbine, Horizontal Shaft r_ „
Location: Near Leadore, Idahoter`-
. .. �
5. Ridgway Dam Hydroelectric
Commissioned 2014 � .
Capacity:8.OMW(7.2MW and 0.8MW) - '
Head: 150 ,
Flow: 500 CFS
-Two Vertical Frances
Penstock: 110'of 72"diameter steel
Location: Near Montrose, Colorado
Construction Cost: $11,600,000
Overall Cost:$16,000,000
6. Fargo Hydroelectric
Commissioned 2013
Capacity: 1.1MW
Head: 140'and 81'
Flow: 75 CFS and 40 CFS
-Two Horizontal Frances Turbines connected a Single Generator
Penstock: 1,550' of 48"diameter steel
Location: Near Homedale, Idaho
Construction Cost: $1,600,000
7. South Canal Drop 1 Hydroelectric
Commissioned 2013
Capacity:4.OMW
Head: 54.2'
Flow: 1000 CFS
-Vertical Double Manual Regulated Kaplan
Penstock: 1,130' of 132" diameter steel
Location: Near Montrose, Colorado
Construction Cost: $5,600,O000verall Cost:$6,600,000

8. South Canal Drop 3 Hydroelectric
Commissioned 2013
Capacity: 3.5MWb 4, i
Head:47.3' �
Flow: 1000 CFS-Vertical Double Manual Regulated Kaplan
Penstock: 290'of 132" diameter steel pipe >�
Location: Near Montrose, Colorado ,
Construction Cost: $5,400,000 '$
Overall Cost: $6,600,000 -ti-
9. Arena Drop Hydroelectric
Commissioned 2010
Capacity:0.5MW
Head: 76'
Penstock:450'of 48" diameter pipe
Flow: 100 CFS
-Horizontal Frances
Location: Near Boise, Idaho
Construction Cost:$920,000
10. Arrowrock Dam Hydroelectric(Pictured right)
Commissioned 2010
Capacity: 20MW, (two 10MW units)
Head: 150'
Penstock: Dual 150' of 96"diameter steel
Flow: 1500 CFS
-two Vertical Frances
Transmission Line: 5 miles
Detailed Computational Fluid Dynamics Study
(CFD) completed for project
Location: Near Boise, Idaho
Construction Cost:$28,500,000
Overall Cost:$38,000,000
11. Midway Hydroelectric(Pictured right)
Commissioned 2006
Capacity: 2.6MW
Head: 27'
Penstock: Dual 90'of 98" diameter steel
Flow: 1300 CFS +�
-Two Horizontal Manually Regulated Kaplans
Transmission Line: 1 mile
Location: Hansen, Idaho . \\
Construction Cost: $4,500,000
�Nlo o®

12. Mora Drop Hydroelectric
Commissioned 2006
Capacity: 1.6MW
Head: 38'
Penstock:90'of 120" diameter steel
Flow: 550 CFS
-Vertical Manually-regulated Kaplan
Transmission Line: 61 miles
Location: Kuna Idaho
Construction Cost: $2,200,000
13. Cove Flume Test Section for Pacific Power/Utah Power& Light
Completed 1998
Feasibility and Design for Test Section for Open Channel Flume
Flow: 1500 CFS
Cast-in-Place and Precast Concrete Sections
14. Mopan Hydroelectric
Completed 1996
Feasibility and power sales for 12 megawatt Facility to include 42-meter-high roller
compacted concrete dam and 92 kilometer transmission line in remote area
Location: State of Petan,Guatemala,Central America
15. Twin Falls Hydroelectric
Completed 1995
Fabrication drawings for penstocks for 30MW facility
Penstocks: 14'diameter '.
Location: Near Twin Falls, Idaho
16. Fall River Hydroelectric
Commissioned 1993
Capacity: 10MW(two 5MW units)
Head: 250' % �. �_■
Penstock: 2700'of 96" diameter steel
Flow: 550 CFS
Bouvier-Two Frances turbines
Location:Ashton, Idaho ` I
Construction Cost: $14,000,000
17. Milner Dam Hydroelectric
Completed 1992
Completed Design portion of design build contract for five
32'wide by 18' high radial gates
Location: Near Burley, Idaho
Fabrication Cost: $1,800,000

18. Friant Fish Release Hydropower
Commissioned 1992
Capacity:0.5MW
Head: 120'
Flow: 35 CFS
Gilkes-500 KW Francis Turbine on Fish Hatchery Release Waters-
-Friant Dam and Friant River Canal
Location: Near Fresno, California
Construction Cost: $800,000
19. Ingram Ranch Lower Hydroelectric
Commissioned 1990 _ +
Capacity:0.5MW
Head: 320' -
Penstock: 11,000' of 30" diameter steel
Canal: 20,000'of Trapezoidal
Flow: 25 CFS
Gilkes-Twin Jet Turgo, Induction Gen
Location: Near Challis, Idaho I __
Construction Cost: $600,000
1.
20. Smith Falls Hydroelectric
Commissioned 1990
Capacity: 38MW(3 units)
Head: 1,585'
Flow: 370 CFS
Penstock: 28,000' of 72", 69"and 57" diameter steel
Bouvier-Three Pelton Units;Two Twin Jets and One Single Jet
Location: Boundary County, Idaho
Construction Cost: $14,000,000
21. Faulkner Land & Livestock Hydroelectric
Commissioned 1989
Capacity:0.9MW
Head: 140'
Penstock:950'of 51"diameter steel through rough mountain canyon terrain
Flow:80 CFS
Gilkes-Frances Turbine, Induction Generator
Utility Grade Switchgear, 2 miles of 14 KV transmission line
Location: Near Bliss, Idaho
Construction Cost: $1,000,000

22. O.J. Power Hydroelectric
Commissioned 1988
Capacity:0.2MW
Head:410'
Penstock: 6,000'of 18" diameter steel
Flow: 7 CFS
Gilkes-Single Jet Turgo Turbine, Induction Generator
Industrial Grade Switchgear
Location: Oneida County, Idaho
Construction Cost: $250,000
23. Mink Creek Hydroelectric
Commissioned 1987
Capacity: 3.OMW
Head:470'
Penstock: 11,000' of 50" diameter steel through rough mountain canyon terrain
Flow: 100 CFS
Gilkes-Twin Jet Turgo Turbine,Synchronous Generator
Utility Grade Switchgear
Location: Franklin County, Idaho
Construction Cost: $2,500,000
24. Amy Ranch Hydroelectric
Commissioned 1987 ° =
Capacity:0.7MW
Head: 940' -
� t
Penstock: 20,200' of 18" diameter steel
Flow: 11 CFS
Bouvier-Twin Jet Pelton Wheel
Industrial Grade Switchgear
Location: Butte County, Idaho
-
Construction Cost: $850,000
25. Snedigar Ranch Hydroelectric
Commissioned 1986
Capacity:0.5MW
Head: 190'
Penstock 4,000'
Penstock: 30" diameter steel through rough canyon terrain
Flow: 35 CFS
Barber-Frances Turbine, Induction Generator
Industrial Grade Switchgear
Construction Cost: $650,000

26. Littlewood River Hydroelectric
Commissioned 1986
Capacity: 1.OMW
Head: 29'
Canal:3,000' in lava rock
Flow:460 CFS
Gilkes-Two Frances Open Flume Turbines
Industrial Grade Switchgear, 1/2 mile transmission line
Location: Near Gooding, Idaho
Construction Cost: $1,400,000
27. Geo Bon II Hydroelectric
Commissioned 1986 £,
Capacity: 1.OMW --
Head: 31'
Penstock: 120'of 120" diameter steel
Canal: 3,000' in lava rock
Flow:480 CFS
Voith- Double Regulated Kaplan
Utility Grade Switchgear
Location: Near Shoshone, Idaho N
Construction Cost: $1,700,000
28. Ingram Ranch Upper Hydroelectric
Commissioned 1985
Capacity: 1.OMW
Head: 185'
Penstock:900'of 48" diameter steel
Canal: 20,000'trapezoidal
Flow:80 CFS
Gilkes-Frances Turbine,Synchronous Generator
Utility Grade Switchgear
Location: Near Challis, Idaho
Construction Cost: $1,100,000
29. Georgetown Irrigation Hydroelectric
Commissioned 1984
Capacity:0.5MW
Head: 220'
Penstock: 18,500' of existing irrigation main
30" diameter through 42" diameter steel
Flow: 30 CFS
Gilkes-Twin Jet Turgo Turbine, Induction Generator
Industrial Grade Switchgear
Location: Georgetown, Idaho
Construction Cost: $500,000

TED SORENSON-DESIGN/OWN/OPERATE HYDROELECTRIC PROJECTS
1. Vinelands Hydroelectric
Commissioned 2023
Capacity:4.2MW
Head: 73'
Flow: 800 CFS
Vertical Shaft Kaplan Turbine
Location: Palisade, Colorado
2. Jim Knight Hydroelectric(rebuild)
Commissioned 2021 (Originally Commissioned 1986)
Capacity: 475KW
Head: 22'
Flow: 300 CFS
Vertical Shaft Kaplan Turbine
Location: Gooding County, Idaho
3. Sagebrush Hydroelectric(rebuild)
Commissioned 2021 (Originally Commissioned 1986)
Capacity: 475KW
Head: 27'
Flow: 300 CFS
Vertical Shaft Kaplan Turbine
Location: Gooding County, Idaho
4. MC6 Hydroelectric Protect
Commissioned 2021 \
Capacity: 2.2MW '
Head: 52'
Flow: 600 CFS
-Vertical Kaplan
Location: Near Kuna, Idaho
5. South Canal Drop 5 Hydroelectric
Commissioned 2016
Capacity: 2.4MW -
Head: 38'
Flow: 840 CFS r
-Vertical Kaplan
Location: Near Montrose, Colorado
Construction Cost: $7,000,000
Overall Cost: $7,300,000

6. North Gooding Main Hydroelectric
Commissioned 2016
Capacity: 1.2MW
MW Head: 60'
Flow: 280 CFS
-Vertical Double Regulated Kaplan
Location: Near Gooding, Idaho
7. South Canal Drop 4 Hydroelectric
Commissioned 2015
Capacity:4.8MW
Head: 74.1'
Flow: 1000 CFS
-Vertical Double Regulated Kaplan
Penstock: 1,360' of 120" diameter used steel
Location: Near Montrose, Colorado
8. Shavano Hydroelectric
Commissioned 2015 -
Capacity: 2.8MW
Head: 184.7' _.
Flow: 220 CFS
-Horizontal Francis
Penstock: 1,760' of 69"diameter steel
Location: Near Montrose, Colorado
9. St.Anthony Hydroelectric(rebuild)
Commissioned 2014(originally commission in 1914)
Capacity:0.7MW
Head: 14'
Flow: 700 CFS
Turbine-Two Francis Camelback w/GE generator
Location: Near St.Anthony, Idaho
10. C-Drop Hydroelectric
Commissioned 2012
Capacity: 1.1MW
Head: 23'
Flow: 700 CFS
-Vertical Kaplan
Location: Klamath Falls,Oregon
Construction Cost:$2,400,000
Overall cost: $3,200,000

11. Lower Turnbull Hydroelectric
Commissioned 2011
Capacity: 7.8MW
Head: 150'
Penstock: 2,215' of 108" diameter
Flow: 700 CFS
-Vertical Frances
Transmission Line: 1.7 miles
Location: Near Fairfield, Montana
Construction Cost: $7,000,000
Overall Cost: $8,500,000
12. Upper Turnbull Hydroelectric(pictured right)
Commissioned 2011
Capacity: 5.7MW
Head: 100'
Penstock:967'of 108" diameter _
Flow: 700 CFS
-Vertical Frances
Transmission Line: 1.3 miles
Location: Near Fairfield, Montana
Construction Cost: $5,000,000
Overall Cost: $6,500,000
13. Pancheri Hydroelectric
Commissioned 2010
Capacity:0.3MW
Head: 503'
Flow: 9 CFS
-Twin Jet Pelton, 290 KW
Penstock: 10,000' of 20"diameter
Location: Near Howe Idaho
Cost:$600,000
14. Belize Hydroelectric(Pictured right)
Commissioned 2007
Capacity: 3.4MW
Head: 120'
Penstock: 550'of 72"diameter
Flow: 375 CFS
-Two Frances Turbines connected to
Single 3.4 MW generator
Transmission Line: 61 miles
Location: Belize,Central America
Construction Cost: $4,000,000
Overall Cost: $5,500,000

15. Tiber Dam Hydroelectric(pictured right) - -
Commissioned 2004
Capacity: 7.5MW
Head: 175'
Penstock:90' of 96"diameter steel
Flow: 700 CFS
Gilkes-Vertical Frances Turbine
Transmission Line: 1 mile
Location: Liberty County, Montana
Construction Cost: $7,000,000
16. Marsh Valley Hydroelectric C
Commissioned 1993
Capacity: 1.9MW
Head: 100'
Penstock: 600'of 60"diameter steel
Flow: 250 CFS
Two Frances Turbines connected to
Single Generator
Transmission Line: 3 miles
Location: Bannock County, Idaho
Construction Cost: $1,800,000
17. Oregon North Fork Sprague River
Hydroelectric
Commissioned 1988
Capacity: 1.2MW
Head: 185'
Penstock:5,700' of 51"diameter steel
through rough mountain canyon terrain
Flow: 100 CFS
Bouvier-Twin Frances Turbines mounted
on Single Generator, Induction Generator
Utility Grade Switchgear,6 miles of 14KV transmission
Location: Near Klamath Falls,Oregon
Construction Cost: $1,400,000
18. Schaffner Ranch Hydroelectric
Commissioned 1986
Capacity:0.4MW
Head: 1,230'
Penstock: 11,000' of 18" diameter steel
Flow: 5 CFS
Gilkes-Pelton Turbine, Induction Generator
Utility Grade Switchgear, 2.5 miles 46KV transmission
Location: Lemhi County, Idaho
Construction Cost: $1,600,000

19. Birch Creek Hydroelectric
Commissioned 1986
Capacity: 2.7MW
Head: 517'
Penstock: 22,000' of 51" diameter steel
Canal: 12 miles trapezoidal
Flow: 75 CFS
Gilkes-Twin Jet Turgo Turbine(1986)
-Pelton Wheel (re-powered in 2007)
Utility Grade Switchgear
Location: Clark County, Idaho
Construction Cost: $3,200,000
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TED SORENSON- OWNED/LEASED HYDROELECTRIC PROJECTS, NOT
DESIGNED BY SORENSON ENGINEERING
1. Salmon Creek Hydroelectric
Commissioned 1988
Capacity:520 KW
Head: 500'
Flow:20 cfs
Turgo Wheel with Synchronous Generator
Location: Near Sierra City,CA
2. Upper Tule Hydroelectric
Re-sync 2025
Capacity: 6.4 MW
Head: 1,544'
Flow:66 cfs
Dual horizontal impulse turbines and generators
Location: Near Springville, CA
3. Barber Dam Hydroelectric
Recommissioned 1989
Capacity: 3.7 MW
Head: 21'
Flow:2,000 cfs
Twin Voith S-Turbines
Location:Ada County, ID
4. Kern Hydroelectric
Re-sync 2021 (Originally Commissioned 1921)
Capacity: 11.5 MW
Head: 264'
Flow: 622 cfs
Allis Chalmers vertical Francis turbine
Location: Kern River, near Bakersfield,CA
5. Lower Haypress Hydroelectric
Commissioned 1988
Capacity: 5 MW
Head:450'
Flow: 159 cfs
5 nozzle Pelton turbine
Location:Sierra County, CA

6. Upper/Middle Haypress Hydroelectric
Commissioned 1988
Capacity: 5MW
Head: 550'
Flow: 130 cfs
5 nozzle Pelton Turbine
Location:Sierra County, CA
7. Dry Creek Hydroelectric
Commissioned 2000
Capacity: 3.4MW
Head: 1,220'
Flow: 55 CFS
Gilkes-
Penstock: 60,000' of 42" diameter steel
Pigged the uncoated penstock to improve head loss
Location: Near Howe, Idaho
8. Mile 28 Hydroelectric
Commissioned 1993
Capacity: 2.4MW
Head: 18'
Flow: 1,400 CFS
Single regulated Kaplan,Synchronous Generator
Location:Jerome County, Idaho
9. Dietrich Hydroelectric
Commissioned 1988
Capacity: 5.05MW
Head: 18'
10. Black Canyon No.3 Hydroelectric
Commissioned 1984
Capacity: 150KW
Head: 100'
Flow: 20CFS
Byron Jackson Reverse Pump
Location: Gooding County, Idaho
11. Magic Reservoir Hydroelectric
Commissioned 1989
Capacity:9MW
Head: 120'
Flow: 1500 cfs
Three Horizontal Frances Turbines
Location: near Jerome, Idaho

Sorenson Hydro Projects-Schedule 72 Fees as of July 2025
Total Annual
Project Monthly Charge Charge Capacity(MW) COD Utility
Barber $605 $7,265 3.70 1989 Idaho Power
Black Canyon $448 $5,380 0.10 1984? Idaho Power
Dietrich $1,496 $17,951 5.05 1988 Idaho Power
Jim Knight $185 $2,217 0.48 2021 Idaho Power
Lemhi $667 $8,004 0.45 1986 Idaho Power
Magic $867 $10,399 9.00 1989 Idaho Power
MC6 $1,349 $16,192 2.10 2021 Idaho Power
Mile 28 $972 $11,667 1.50 1994 Idaho Power
NGM $931 $11,178 1.20 2016 Idaho Power
Sagebrush $190 $2,279 0.58 2021 Idaho Power
Total Idaho Power $7,711 $92,531
Average Per Project $771 $9,253
PacifiCorp only charges our Sprague Hydro project in Oregon a Schedule 72 fee.

eSignature Details
Signer ID: bja7CdAajw47b7A3fiijAaoE
Signed by: Ted S. Sorenson
Sent to email: [e-mail]
IP Address: 97.117.69.44
Signed at: Sep 15 2025,2:40 pm MDT