Ameresco to Address Electricity Supply Issues in California Through Battery-Storage Solutions

Last week, Ameresco partnered with Southern California Edison to provide storage systems leveraging battery technology. The clean-energy solutions provider stated that the contract entails the provision of three 4-hour duration battery-energy storage system projects.

Each of these systems has been designed to cushion the reliability issues affecting the electricity system that supplies most of California, with each being connected to a distribution network substation pocket. The electricity-supply shortage that plagues the state of California is especially critical during wildfire risks or during heat waves that occur in summer and other climate or weather-related occurrences.

This shortage recently led the state’s governor to declare a state of emergency and pass a measure that would speed up the introduction of energy storage and renewable energy resources to the state’s grid. California hopes that by 2045, it will be operating on 100% clean energy.

Ameresco has entered into maintenance, construction, procurement and engineering contracts with Southern California Edison, which is an investor-owned utility company in the state. The contracts stipulate that the energy-solutions provider will serve the communities in Southern California as well as those around Long Beach, San Joaquin Valley and Rancho Cucamonga areas.

These energy-storage facilities will charge using the power grid during periods of surplus generation, as when there’s a lot of daytime solar energy as well as in off-peak times, then discharge when required as the power demand increases.

The systems offer peak localized capacity to utility companies through resource sufficiency contracting, with Ameresco noting that the batteries will be connected to utilities’ distribution substations in order to address local needs promptly, which hadn’t been done before. Ameresco revealed that it planned to bring the battery-energy storage system projects into commercial operation by 2022 in August.

Southern California Edison stated that the contract added to the 5MW of batteries and 1350MW of utility-level battery storage that it agreed in contracts for 2020, which brings its procured and installed storage capacity to roughly 2800MW, inclusive of third-party operated resources.

PG&E, another investor-owned utility in California, recently stated that it has in excess of 1400MW worth in contracts for BESS projects to be implemented by 2023 within its area of operation. Cumulatively, Southern California Edison and PG&E have about 15 million clients. The remaining utility in the state, SDG&E (San Diego Gas & Electric), has about 3 million customers. SDG&E recently revealed that it was planning to invest in about 140MW worth of power storage within its operation area.

As even more battery-storage chemistries become available from companies such as StorEn Technologies Inc., we will see more projects like those being implemented by utility companies in California and elsewhere.

NOTE TO INVESTORS: The latest news and updates relating to StorEn Technologies Inc. are available in the company’s newsroom at

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