Our Technology

Long Duration Energy Storage (LDES)

Charge

Captures energy from intermittent sources: grid surplus, renewables, solar thermal, industrial waste heat

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Store

Hold energy in solid media at ultra-high temperatures (up to 1800 C) for high energy density

Discharge

Flexibly deliver electricity, heat, or cold depending on need – even while charging

The TES Technology Advantage

  • Patented Layered solid-mass architecture with high-temperature core and thermal gradients outward

  • Long-duration thermal energy storage measured in days or weeks instead of hours

  • Allows renewables to be used as a heat source rather than only generate electricity

  • Extremely low thermal losses compared to short-duration storage technologies

  • Heat-source agnostic: accepts industrial waste heat, exhaust streams, or electric input

  • Lower cost per MWh-thermal and access to markets batteries cannot serve

  • Designed for high energy density and long life

water falls in the forest
water falls in the forest

Contact Us

A warm, inviting office space with green plants and natural light, reflecting sustainable energy values.
A warm, inviting office space with green plants and natural light, reflecting sustainable energy values.

Reach out to GreenRock Energy to discuss thermal energy storage solutions tailored for you.