Skip to content

Startup Portfolio: Long-duration Storage

Meet Our Latest Batch of Startups: Cohort 22-1

Why 22-1? Historically, our cohorts were named for the year’s peak atmospheric carbon dioxide concentration (in parts per million [ppm]), based on the Keeling Curve.

We're a bunch of science nerds at D3, but we realized this was just a little too wonky—so we’re switching our cohort names to represent the year and quarter of their launch.

STARTUPS BY COHORT:

Allegro

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).

Read More

Antora Energy

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

Read More

Energy Dome

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

Read More

XL Batteries

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

Read More

Zinc8 Energy Solutions

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

Read More

APPLY TODAY:

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.

Apply to Third Derivative