Fourth Power

Fourth Power is a thermal battery energy storage company. Our technology makes renewable energy an on-demand energy source through utility-scale thermal storage. We can harness today’s wasted wind and solar production to respond to grid needs at a cost competitive with fossil fuels.

Our modular battery can provide 5 to 10 hours of storage to meet needs now and scale with renewable deployment for needs up to 100 hours and any increment in between. With the ability to provide short- and long-duration energy storage (LDES), we can start small and grow with the grid to save consumers money and ensure a clean energy future.

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Cambridge , MA, USA

View website: https://gofourth.com
Founded: 2020
: 20

Fourth Power in social media

View website: Facebook
Founded: LinkedIn
: Twitter

Facilities Manager

Full time

renewables

Bedford, MA, United States

Published at: 2026-09-03
Engineering Technician

Full time

renewables

Bedford, MA, United States

Published at: 2026-09-03
Principal Systems Engineer

Full time

renewables

Middleton, MA, United States

Published at: 2026-03-24

Fourth Power

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Cambridge , MA, USA

Fourth Power in social media