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Startup Portfolio: Long-duration Storage

Meet Cohort 24-1!

We’re proud to officially announce Cohort 24-1 comprised of thirty-one climate technology companies. Each startup was selected based on climate impact, techno-economics, business model, and competitive landscape. Their technologies include clean ammonia, cool energy storage, novel methane detection, and more.

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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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Making the sun shine at night by building low cost, scalable, and sustainable long duration energy storage and making it easy to calculate expected risk and returns of projects.

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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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