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Swell Energy to establish 6,000-battery virtual power plant for Hawaiian Electric

By Kelly Pickerel | January 19, 2021

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The Hawaii Public Utilities Commission (PUC) has approved Swell Energy’s $25 million contract with Hawaiian Electric for grid services through a virtual power plant (VPP). Swell will deploy behind-the-meter solar-powered home batteries to approximately 6,000 residential customers to create a comprehensive VPP on Oahu, Maui and Hawaii islands.

The Hawaii program will deliver more than 25 MW of solar power paired with over 80 MW of batteries and 100 MWh of stored energy, delivering capacity and frequency response to the three island grids while also reducing bills for participating customers.

The contract was awarded in response to Hawaiian Electric’s request for dispatchable energy storage and renewable generation through distributed energy resources along with capacity and ancillary services to ensure adequate supply and power system reliability across the Hawaiian Electric service territory.

A Tesla Powerwall installation in Hawaii completed by RevoluSun

Swell Energy will augment Hawaiian Electric’s energy supply by relieving the grids of excess renewable energy as production spikes and absorbing excess wind energy when needed, thereby reducing peak demand and providing 24/7 fast frequency response to balance the grids. The renewable energy storage systems will collectively respond to grid needs dynamically, moment-to-moment.

“An agreement of this scale and scope was required to support Hawaiian Electric’s clean energy goals across the three islands. Providing this level of capacity and ancillary services establishes a new standard for virtual power plants and builds on Swell Energy’s deployments across the mainland United States. This fleet of dispatchable energy resources benefits the utility and allows customers to save money and come together to form a more resilient grid,” said Suleman Khan, CEO of Swell Energy.

The program is available to Oahu, Maui and Hawaii Island customers who are seeking solar energy with a home battery for backup capability, as well as those who already have solar systems with storage installed. This is one of several VPPs that Swell Energy is launching with other investor-owned utilities and community-choice aggregation programs in the United States. These VPPs offer a variety of customized grid services determined by the needs of the communities and utilities they serve. Notably, the Hawaii program will form Swell Energy’s largest VPP to date.

“Our islands have small, stand-alone grids with a high-level renewable generation, which makes them sensitive to supply and demand imbalances,” said Yoh Kawanami, Hawaiian Electric customer energy resources co-director. “This project is an important opportunity for Hawaiian Electric and Swell Energy to develop an innovative portfolio of customer-sited resources that meet a variety of grid requirements, while providing additional choices and benefits for our customers.”

Swell is launching the first phase of its VPP program in partnership with solar + storage installer RevoluSun.

News item from Swell Energy

About The Author

Kelly Pickerel

Kelly Pickerel is editor in chief of Solar Power World.

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