# Siemens Energy to build black-start battery system at Marsh Landing plant

Siemens Energy was selected to provide engineering, procurement and construction for a battery-based black-start generation system at the 720-MW Marsh Landing Generating Station near Antioch, California, owned by NRG Energy and operated by Clearway Energy.

- Type: Contract
- Announced: 2021-01-28
- Where: Antioch, California, United States
- Status: announced
- Capacity: 7MW / 5.48MWh
- Products: battery energy storage system, black-start system
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md), [Electrical Equipment](https://endata.com/sectors/electrical-equipment.md)

## Companies

- [Siemens Energy](https://endata.com/companies/6803.md)
- [NRG Energy](https://endata.com/companies/23555.md) (customer)
- [Clearway Energy](https://endata.com/companies/52885.md) (customer)
- [Clearway Energy](https://endata.com/companies/52885.md) (partner)

## Sources

- [power-eng.com](https://www.power-eng.com/gas/turbines/siemens-handling-turnkey-epc-work-on-black-start-battery-system-at-california-gas-fired-plant/), 2021-01-28: "Battery storage systems like this one are capable of fully restarting power on a highly expedited basis."
- [energy-storage.news](https://www.energy-storage.news/batteries-emerge-as-a-cleaner-alternative-for-re-energising-the-grid-at-california-gas-plant/), 2021-02-09: "Battery black start solutions are a much cleaner alternative to traditional diesel or other fossil fueled starting systems."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.