Key Capture Energy is at the forefront of bringing renewable energy to Connecticut, ahead of the state's goal of getting all its electricity from zero-carbon sources by 2040. Contact online >>
Key Capture Energy is at the forefront of bringing renewable energy to Connecticut, ahead of the state''s goal of getting all its electricity from zero-carbon sources by 2040.
The Albany, New York-based company doesn''t install solar arrays or build offshore wind farms. Its projects are based on land, usually near electric substations.
But without Key Capture''s technology, the state wouldn''t be able to provide consistent and reliable renewable energy from intermittent sources, such as solar and wind, which are produced at the whims of Mother Nature.
Key Capture develops and installs utility-scale battery energy storage facilities, which take surplus energy from solar and wind sources during peak production, store it and then dispatch it to the electric grid when it''s needed.
"The ability of these systems to store renewable energy when it isn''t needed to meet grid demand, so that it can be used by households and consumers when demand rises, will make the transition to a fully decarbonized grid possible," said Paul Williamson, Key Capture''s senior manager of development.
Currently, about half of Connecticut''s electricity is generated at natural gas-fired plants, which produce a constant supply of electricity when they''re running. Also, there are multiple peaking power plants across the state, which run on natural gas and provide additional power when needed.
Under the current system, electricity never gets wasted because the grid operator, ISO-New England, can turn additional power plants on when demand is high, or off when demand is low.
However, as an increasing percentage of the state''s power comes from intermittent solar- and wind-powered sources, ISO-New England will rely on battery storage to maintain an adequate power supply.
Key Capture was founded in 2016 with two employees and has grown to 100 workers across three offices. In addition to its Albany headquarters, the company has locations in Houston and Brooklyn, New York.
It''s owned by SK E&S, a private natural gas company in South Korea, which is an affiliate of SK Group, a conglomerate that had about $106 billion in annual global revenue and more than 110,000 employees worldwide as of 2020.
Key Capture has eight energy battery storage projects planned in Connecticut. Two have already received approvals from the Siting Council: one in Windsor Locks and another in East Hampton.
Williamson said the company builds facilities near existing grid infrastructure, such as power lines and substations, with the appropriate capacity to charge and discharge its batteries.
"To a regular person, these facilities look like shipping containers," he said. "While that may be true to the naked eye, they contain sophisticated battery systems that undergo rigorous testing, siting and permitting processes before coming online."
Key Capture has four other Connecticut projects in the pipeline, at yet-to-be-determined locations. In total, Key Capture will provide 400 MW of storage capacity in the Nutmeg State — enough to power about 320,000 homes.
A state law passed in 2021 requires Connecticut to have 1,000 MW of battery storage capacity by 2030. With Key Capture providing 40% of that requirement, the state Department of Energy and Environmental Protection has issued a request for proposals seeking developers for another 450 MW of capacity.
Attorney Lee D. Hoffman, chair of law firm Pullman & Comley, who represents Key Capture, said battery energy storage is an essential step toward meeting the state''s clean energy goals, while maintaining a stable and reliable electric grid.
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