Ormat launches the largest energy storage installation in California with an 80MW project

Ormat Technologies launches in California its largest energy storage project, Bottleneck, an 80MW/320MWh system designed to provide energy services to San Diego Gas & Electric under a 15-year contract.

Share:

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

Ormat Technologies Inc., a major player in renewable energy based in Reno, Nevada, announces the start of commercial operations for its largest energy storage project, named Bottleneck. Located in California’s Central Valley, this 80MW/320MWh facility will provide energy, capacity, and ancillary services to San Diego Gas & Electric (SDG&E) through a Power Purchase Agreement (PPA), signed in 2022 for a fifteen-year term.

The Bottleneck project was also designed to maximize available tax benefits for renewable energy installations. Due to its size and strategic location, Ormat expects to benefit from a 40% Investment Tax Credit (ITC), an incentive for clean energy projects. This credit is expected to be monetized by the end of the year, directly contributing to the company’s profit margins.

A Growth Strategy in the Energy Storage Market

For Ormat, the Bottleneck project represents a significant step in its growth strategy for the energy storage segment in the California market, a crucial market for renewable energy development in the United States. According to Doron Blachar, Ormat’s CEO, this installation aligns with the company’s goal of reaching a total capacity of 950MW-1050MW and 2.5GWh-2.9GWh by 2028.

Ormat currently operates 270MW/638MWh of storage projects, with an additional six projects under construction, representing an additional capacity of 355MW/920MWh. This expansion highlights the importance of energy storage in the energy transition, stabilizing production and compensating for fluctuations from renewable sources such as wind and solar.

Long-Term Support for California

The Bottleneck project provides Ormat with stable, contractual revenue through the 15-year contract signed with SDG&E, a partnership that also strengthens California’s ability to achieve its ambitious clean energy goals. The state aims to progressively reduce its carbon emissions and develop sustainable energy solutions.

Blachar adds that this project directly supports California’s ambitions to transform its energy infrastructure toward reliable renewable sources and storage. Energy storage, combined with increased renewable production, enables a more flexible response to electricity needs, especially during peak demand periods or when traditional sources are less available.

Ormat’s Role in the Global Renewable Energy Market

Ormat continues to consolidate its position in the global renewable energy market, with recognized expertise in geothermal energy and a growing commitment to energy storage. This Bottleneck project marks a further milestone in the diversification of the company’s energy assets, emphasizing innovative solutions that support the evolution toward a more resilient and cleaner power grid in the United States.

The success of this energy storage installation in California not only illustrates Ormat’s ambition to improve its profitability but also its active role in achieving national climate goals. By developing robust and large-scale storage infrastructures, the company positions itself as a strategic partner for states and companies seeking to optimize the use of renewable energy in the context of a global energy transition.

The collapse in storage costs positions batteries as a key lever for dispatchable solar, but dependence on Chinese suppliers creates growing tension between competitiveness and supply chain security.
JA Solar has launched a microgrid combining 5.2 MW of solar and 2.61 MWh of storage at an industrial site in Sicily, marking its first application of the "PV+Storage+X" model in Italy.
Sinexcel has installed a 2MW/8MWh energy storage system in Matsusaka, marking a breakthrough in a regulated market after five years of technical partnerships and gradual deployment in Japan.
Inlyte Energy has successfully completed factory validation testing of its first full-scale iron-sodium battery, witnessed by Southern Company, paving the way for a pilot installation in the United States in early 2026.
Neoen begins construction of a new 305 MW stage in Australia, raising its total battery storage capacity in the country to 2 GW, and signs two additional virtual battery contracts with ENGIE.
ENGIE has awarded NHOA Energy the contract for a 320 MWh battery energy storage system in Drogenbos, marking a new step in their industrial partnership in Belgium.
Stardust Power has completed an independent review of its lithium refinery project in Muskogee, confirming technical feasibility and compliance with industry standards for its initial production phase.
California-based battery manufacturer South 8 Technologies has secured $11mn to boost production of its LiGas cells, targeting military and space applications under extreme conditions.
Samsung SDI will supply LFP cells for energy storage systems in the United States starting in 2027, under a multi-year deal valued at $1.53bn.
Bitzero Holdings launches a new 70 MW expansion phase in Namsskogan, Norway, targeting a total capacity of 110 MW and an upgrade of its high-performance computing capabilities.
Remixpoint and Nippon Chikudenchi have formalised a partnership to develop seven 2MW/8MWh BESS facilities by October 2026 through a newly established joint venture.
UK-based Ray Systems has selected Beam Global to supply tailored battery systems for its new autonomous underwater drones, aiming to extend mission duration without compromising stealth or manoeuvrability.
Sungrow has started construction on a 200 MW/400 MWh battery storage system for ENGIE, aimed at strengthening grid stability in a state heavily reliant on renewable energy.
Blue Current secures over $80mn in funding led by Amazon to industrialise its silicon solid-state batteries for large-scale mobility and stationary applications.
AGL has begun construction of a 500 MW battery storage system in Tomago, a project valued at AUD800mn ($530.8mn), in the Hunter region, with commissioning expected in 2027.
Real estate group JALCO Holdings diversifies its activities by investing in a 2 MW/8.1 MWh battery energy storage system developed by Taoke Energy in Narita, Chiba Prefecture.
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.

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.