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Startup Portfolio: Long-duration Storage

Meet Our Latest Startups: Cohort 23-2 and Cohort 23-3 (FGC 2)!

We're proud to officially announce Cohort 23-2 and Cohort 23-3 (FGC 2)! Thirty-six global climate tech startups comprise these two outstanding cohorts. 

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Developing low-cost energy storage solutions for many applications ranging from fast frequency response (FFR) and over electric mobility, to long-duration energy storage (LDES).

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Antora Energy

Building inexpensive long-duration energy storage using high-efficiency thermophotovoltaics.

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Cache Energy

Developing long duration energy storage technology that can be safely installed anywhere and transported everywhere.

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Energy Dome

Developing a low-cost and efficient system for long-duration electricity storage using liquid CO2.

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XL Batteries

Developing a novel chemistry for a 20+ year, non-flammable flow battery.

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Zinc8 Energy Solutions

Developing innovative battery technology that uses zinc and air as fuel, resolving the intermittent and unpredictable nature of renewable sources.

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Accelerate your success and speed to market with us

We’re here to help you bridge critical finance and resource gaps by uniting and aligning the world’s most promising climate tech startups—like you—with D3’s network of committed investors, corporate partners, market experts, and mentors.

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