Strata Clean Energy signs 150MW 20-year energy storage contract

Strata Clean Energy signs a 20-year contract with Arizona Public Service for a 150 MW/600 MWh energy storage project in Phoenix, designed to meet the region's growing demand for electricity.

Share:

Contrat stockage d'énergie Phoenix

Comprehensive energy news coverage, updated nonstop

Annual subscription

8.25$/month*

*billed annually at 99$/year for the first year then 149,00$/year ​

Unlimited access • Archives included • Professional invoice

OTHER ACCESS OPTIONS

Monthly subscription

Unlimited access • Archives included

5.2$/month*
then 14.90$ per month thereafter

FREE ACCOUNT

3 articles offered per month

FREE

*Prices are excluding VAT, which may vary depending on your location or professional status

Since 2021: 35,000 articles • 150+ analyses per week

Strata Clean Energy has signed a 20-year energy storage contract with Arizona Public Service (APS) for the Justice Energy Storage project, located near Skyline Regional Park in Phoenix, Arizona. The 150 MW/600 MWh project is designed tosupply electricity to around 24,000 homes for four hours.

A major project for Arizona

Scheduled for completion in April 2026, the Justice Energy Storage project represents a crucial step in APS’s strategy to meet the region’s growing energy demand. APS, the state’s largest electricity supplier, is committed to integrating more clean energy into its grid to ensure a reliable and sustainable supply.
Strata Clean Energy, headquartered in Durham, North Carolina, with offices in Scottsdale and Denver, is well positioned to bring this project to fruition thanks to its experience and capabilities in development, engineering, construction and maintenance.

Partnerships and commitments

Last year, Strata had already signed a similar agreement with APS for the Scatter Wash project, a 255 MW/1 GWh battery storage complex currently under construction. These initiatives illustrate both organizations’ ongoing commitment to improving energy reliability while integrating more renewable energies.
Josh Rogol, President of Strata Clean Energy, emphasized the importance of this collaboration: “We believe APS will continue to be a leader in battery energy storage, and our broad portfolio of clean energy projects, along with our world-class execution capabilities, uniquely position us to help the region achieve its clean energy goals.”

Benefits for consumers

Brian Cole, Vice President of Resource Management at APS, also expressed his satisfaction with the initiative: “APS is planning thoughtfully to meet Arizona’s growing energy needs with a diverse mix of resources, ensuring a reliable, affordable and clean power supply. Projects like Justice Energy Storage will benefit customers during the hottest times of the day.”
Under the new agreement, APS will be able to charge and discharge the power system as required, while Strata will ensure the system’s capacity, reliability and efficiency throughout the contract period.

A sustainable energy future

In June 2023, APS launched a Request for Proposals (RFP) to secure approximately 1 GW of resources, including 700 MW of renewable energy, to meet the needs of its Integrated Resource Plan. The Justice Energy Storage project was one of the projects selected following this RFP.
Strata Clean Energy and its subsidiaries are recognized for their expertise in solar energy and storage. With over 170 projects in operation and more than 8 GW of solar projects and 31 GWh of storage under development, Strata continues to lead the clean energy sector towards a more sustainable future.
This agreement with APS reinforces Strata’s position as a market leader, while underlining the importance of innovation and collaboration in the energy sector to meet current and future energy challenges.

BKW is conducting feasibility studies on four sites to assess the profitability and development conditions for large-scale battery storage installations in Switzerland.
A 300 MW/1,200 MWh electrochemical energy storage facility has been commissioned in China, marking a major milestone in the country’s largest publicly funded energy infrastructure project.
Sustainable Holdings is developing a battery storage facility in Matsusaka, with operations scheduled to begin in June 2026 on Japan’s electricity market.
California-based Korbel Winery is now equipped with an integrated energy storage and intelligent control system, installed by Energy Toolbase and BPi, to optimise usage and address local grid constraints.
The 200 MW Greenwater battery storage project enters execution phase following a $400mn bank financing, marking a strategic milestone in the Pacific Northwest’s energy infrastructure development.
Solar with batteries becomes a bankability lever in three key ASEAN markets, where the focus shifts from cost reduction to the monetisation of energy flexibility.
Energy group RWE launches construction of its largest UK storage system, with 700 MWh capacity, at its Pembroke power station in Wales.
The Australian government opens Tender 8 to secure 16 GWh of storage, for the first time including aggregated portfolios of 5 to 30 MW within the National Electricity Market.
With a strategic investment in a 200 MWh facility, European Energy strengthens its industrial position in Denmark and energises the Nordic battery storage market.
The Spanish renewable energy producer significantly increased its investments and revenue while achieving more than half of its asset rotation target for the 2025–2027 period.
Chinese manufacturer EVE Energy has signed a three-year memorandum of understanding with Sweden’s Vimab BESS AB to supply batteries and energy storage solutions in Northern Europe.
Huawei's full-lifecycle battery safety rating system has been officially validated by a national technical committee, marking a key milestone for large-scale energy storage deployment.
AMPYR Australia and InCommodities have signed a 15-year partnership for the Bulabul BESS project, marking the Danish trader’s first long-term commitment in the Australian energy storage market.
Tokyo Gas and Okaya & Co. will begin construction in December 2025 of a 25 MW/75 MWh battery energy storage system in Hokkaido, with commercial operations expected in 2028 or later.
US-based CETY has been awarded a $10mn contract to build a battery energy storage system in New York State, marking the first in a series of planned installations across the region.
French energy group Engie wins its second-largest global battery storage project with a capacity of 280 MW, awarded by a state-owned company in Gujarat, India.
Nostromo’s IceBrick system becomes the first behind-the-meter thermal storage device to participate in California’s wholesale energy market, in partnership with Olivine, marking a milestone for commercial buildings.
Pacific Green has received approval from the Victorian government for its second energy storage park in Australia, a 1GW project to be developed over 36 months in Portland’s industrial zone.
TagEnergy launches a 150 MW storage project at the Golden Plains wind farm site, strengthening its investment strategy in Australia's energy infrastructure.
CATL, Sun Village and Marubeni Power Retail have signed an agreement to develop 2.4GWh of grid-scale storage capacity in Japan, without a defined schedule, leveraging investment, construction and commercial management synergies.

All the latest energy news, all the time

Annual subscription

8.25$/month*

*billed annually at 99$/year for the first year then 149,00$/year ​

Unlimited access - Archives included - Pro invoice

Monthly subscription

Unlimited access • Archives included

5.2$/month*
then 14.90$ per month thereafter

*Prices shown are exclusive of VAT, which may vary according to your location or professional status.

Since 2021: 30,000 articles - +150 analyses/week.