Hydro-Québec’s EVLO to deploy 300MWh of BESS in Virginia

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The energy storage system integration arm of Canadian utility Hydro-Québec, EVLO, will deploy 300MWh of battery energy storage systems (BESS) in Virginia, US.

EVLO Energy Storage Inc will provide its EVLOFLEX grid-scale BESS product for three separate projects for unnamed customers in the US state, set to enter commercial operation in 2025 and 2026.

The first is a 5MWh project at a facility microgrid paired with solar PV, which will be used to study how clean energy can enhance the grid of the future.

The second is a much larger, 75MWh standalone project that will enhance grid reliability and help an unnamed utility reach 100% clean energy. It will be one of the biggest projects in Virginia when it comes online in 2025.

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The final and largest project in the trio is a 225MWh system that will adjoin a solar PV plant at a major transportation hub. That will be the largest when online, EVLO said.

EVLO will deploy its EVLOFLEX grid-scale BESS product for the projects, not its most recent product the EVLO SYNERGY. SYNERGY was announced recently, and doubles the energy capacity per 20-foot container unit to 5MWh, from EVLOFLEX’s 2.5MWh.

EVLOFLEX ‘exceeds’ safety standards while EVLO SYNERGY ‘complies’ with them, as a company executive explained to Energy-Storage.news at the time of SYNERGY’s launch last month. A separate executive had discussed the balance of energy density and safety with us at Solar Media’s Energy Storage Summit USA 2024 in Austin, Texas, in March this year.

For example, in addition to UL 9540, EVLO deploys a proprietary ‘Engineering Validation Plan’, which it says tests the entire system in real-life conditions to ensure performance under any circumstance. It added that enhanced fire safety features will be incorporated to all three projects, as requested by their customers.

The Virginia projects will support the Virginia Clean Economy Act (VCEA), which sets out the state’s aim to reach 100% clean energy by 2050 and invest in the technologies required to get there. See recent news about energy storage in Virginia here, including East Point Energy submitting planning application documents for a 80MWh project, and utilities Dominion Energy and Appalachian Power launching RFPs for solar and storage projects.

15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.

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