OnPeak Power Projects

Over 5.2 GW of utility scale solar and storage projects

Reliable, Affordable, Renewable Energy When it is Needed Most

OnPeak is a full cycle renewable energy development company creating value optimized projects, securing and origination project agreements, financing, and project management through construction and into operations. OnPeak Power is active in 12 states in ERCOT, SPP, MISO, and WECC.

3.0 GW of utility scale solar capacity and 2.2 GW of utility scale storage capacity
255 MWac currently operating
456 MWac in or committed to construction
430 MWac of signed PPAs with four different utilities
USD 700 M invested capital
Industry’s first solar PTC transfer project financing

Reliable, Affordable, Renewable Energy When it is Needed Most

3.0 GW of utility scale solar capacity and 2.2 GW of utility scale storage capacity
255 MWac currently operating
456 MWac in or committed to construction
430 MWac of signed PPAs with four different utilities
USD 700 M invested capital
Industry’s first solar PTC transfer project financing

Operating Projects

Greasewood, Pecos County, Texas (ERCOT)

OnPeak Power sold the 1985-acre project site located in Pecos County, Texas to Copenhagen Infrastructure Partners (CIP) in December 2018. Mortenson construction completed the project in February 2021. Energy generated from Greasewood Solar is delivered to the ERCOT grid with 150MW secured by long term power contracts to the City of Garland, New Braunfels Utilities, and the Kerrville Public Utility Board.

Location: Pecos County, Texas
Capacity: 255 MWac Solar
COD: February 2021
Off-takers: 150MW contracted long term power contracts to the City of Garland, New Braunfels Utilities, and the Kerrville Public Utility Board

Advanced Development Projects

Tierra Bonita (Greasewood II), Pecos County, Texas (ERCOT)

Tierra Bonita is a 305 MWac facility located in Pecos County, Texas in ERCOT West adjacent to Greasewood I.

OnPeak Power sold Tierra Bonita to Ashtrom Renewable Energy in 2021 and is lead project developer. In September 2022, Tierra Bonita entered into a power purchase agreement for 180 MWs with CPS Energy.

The project is currently under construction and will achieve operations in 2024.

Location: Pecos County, Texas
Capacity: 306 MWac Solar
COD: December 2024
Off-takers: 180 MW contracted long term power contract to CPS Energy

El Patrimonio, Bexar County, Texas (ERCOT)

El Patrimonio is a planned 150 MWac facility located in Bexar County, Texas interconnecting to the ERCOT 138kV transmission system.

OnPeak Power sold El Patrimonio to Ashtrom Renewable Energy in 2021 and is the lead developer. In January 2023, El Patrimonio entered into a power purchase agreement for 100 MWs with CPS Energy.

The project, currently in development, will start construction in 2024 with operation planned for 2025.

Location: Bexar County, Texas
Capacity: 150 MWac Solar
COD: 2026
Off-takers: 100 MW contracted long term power contract to CPS Energy

Whitethorn (Greasewood III), Pecos County, Texas (ERCOT)

Whitethorn is a planned 270 MWac facility located in Pecos County, Texas interconnecting to the ERCOT 345kV transmission system.

OnPeak Power sold Whitethorn to Ashtrom Renewable Energy in 2021 and is the lead developer.

The project, currently in development, will start construction in 2024 with operation planned for 2025.

Location: Pecos County, Texas
Capacity: 270 MWac Solar
COD: December 2025

LARREA (GREASEWOOD IV), PECOS COUNTY, TEXAS (ERCOT)

Larrea Solar is a planned 225 MWac facility located in Pecos County, Texas interconnecting to the ERCOT 345kV transmission system.

OnPeak Power sold Larrea to Ashtrom Renewable Energy in 2023 and is the lead developer.

The project, currently in development, will start construction in 2026 with operation planned for 2027.

Location: Pecos County, Texas
Capacity: 225 MWac Solar
COD: December 2027

Rolling Sun, Randall County, Texas (SPP)

Rolling Sun is a planned 300 MWac facility located in Randall County, Texas interconnecting to the Xcel’s SPS 230kV transmission system.

OnPeak Power sold Rolling Sun to Ashtrom Renewable Energy in 2022 and is the lead developer.

The project, currently in development, will start construction in 2026 with operation planned for 2028.

Location: Randall County, Texas
Capacity: 300 MWac Solar
COD: December 2028

Soles Rest, Elmore County, Idaho (Idaho Power Co.)

Soles Rest is a planned 149 MWac facility located in Elmore County, Idaho interconnecting to the Idaho Power 230kV transmission system.

OnPeak Power sold Soles Rest to Ashtrom Renewable Energy in 2021 and is the lead developer.

The project, currently in development, will start construction in 2025 with operation planned for 2027.

Location: Elmore County, Idaho
Capacity: 149 MWac Solar
COD: December 2027

BEAUTYBERRY SOLAR AND STORAGE, LONOKE COUNTY, ARKANSAS (MISO SOUTH)

Beautyberry Solar and Storage is a planned 100 MWac facility located in Lonoke County, Arkansas interconnecting to the Arkansas Electric transmission system in MISO.

The project, currently in development, will start construction in 2028 with operation planned for 2029

Location: Lonoke County, Texas
Capacity: 100 MWac Solar
COD: December 2029

ARKANSAS SOLAR AND STORAGE, LONOKE COUNTY, ARKANSAS (MISO SOUTH)

Arkansas Solar and Storage is a planned 350 MWac facility located in Lonoke County, Arkansas interconnecting to the Entergy Electric transmission system in MISO.

The project, currently in development, will start construction in 2028 with operation planned for 2030

Location: Lonoke County, Texas
Capacity: 350 MWac Solar
COD: December 2030

CR15 COLORADO SOLAR AND STORAGE, MORGAN COUNTY, COLORADO (WECC)

Colorado Solar and Storage is a planned 250 MWac facility located in Morgan County, Colorado.

The project, currently in development, will start construction in 2028 with operations planned for 2028.

Location: Morgan County, Colorado
Solar Capacity: 250 MWac Solar
Battery Energy Storage System Capacity: 250-500 MWh
COD: 2028