UK-based BESS developer and operator Kiwi Power has launched its biggest behind the meter battery to date— a 4MW Tesla Powerpack in Wales.
Kiwi said the 4.8MWh lithium-ion battery started providing firm frequency response (FFR) to the National Grid this month from the Parc Stormy renewable technologies site operated by Cenin Renewables near Bridgend.
The battery took three months to build after winning a two-year National Grid contract to offer 24-hour availability at GBP19 ($26.5) per MW per hour.
Kiwi declined to give investment details, but told BBB the project was in the region of “several million pounds”.
The company said the project used “third party finance from an unnamed investor which will take the lion’s share of the FFR revenue, while Kiwi takes a fee for managing the battery and Cenin also gets a share of the project’s revenue”.
FFR “will be the sole use of the battery over the first two years of the project’s life, but it will also make use of the renewables generation from the 20-acre site’s solar, wind and anaerobic digestion resources”, Kiwi said.
Kiwi Power CEO Yoav Zingher said: “This facility is an exciting addition to Kiwi Power’s battery portfolio, and a key part of our strategy to develop, finance, build and monetise the highest value battery systems on customer sites across Europe.”