Chiller

Compressor

Fans

Coolant loop

Fire suppression

No chiller

No compressor

No fans

No fluid loop

No suppression hardware

Resistive heating

Ambient temperature

+25°C

−400+55

Conventional LFP container

Grid Storage 1

Drag through the rated −40 to +55 °C. Aux draw to hold temperature, relative: Peak publishes 95% less.

Units on one acre

1of 64

1Up to 200 MWh

A year at full rate

0.0GWh

StartUp to 4 GWh

Grid storage without the cooling plant.

Grid Storage 1 is fully passive. No fans, no compressors, no chillers, no fluid loops.

No fans, no compressors, no chillers, no fluid loops, no fire-suppression hardware.

Nearly 90% of historical BESS safety incidents start in balance-of-system and controls. Grid Storage 1 removes 89% of BESS incident causes by design.

A drop-in unit. Same install crew, same EMS.

3.1 MWh of sodium-ion (NFPP) storage in a 24 ft footprint, with standard inverters and no auxiliary hook-up.

A white Grid Storage 1 unit on a concrete pad at the Watkins, Colorado site under a bright sky.
Live on the US grid. Watkins, CO, since August 2025.

Up to 200 MWh per acre at 96% round-trip efficiency.

Zero moving parts. 20 years of no scheduled maintenance. Drawn here as 64 units on one acre.

Next: Sacramento, from Q1 2027.

America's first sodium-ion grid storage factory. 183,000 square feet at Metro Air Park, built to produce up to 4 GWh of battery systems a year.

Peak's render of its white Sacramento factory with PEAK on the facade, seen from the air.
Peak's render of the Sacramento facility.

AI Data Centers. This section opens when we build the full site.

Utilities & IPP. This section opens when we build the full site.

3-Phased Strategy. This section opens when we build the full site.

News. This section opens when we build the full site.