# TerraPower

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/terrapower

- Industry: Power & Utilities
- Headquarters: Bellevue, US
- Website: www.terrapower.com
- Total disclosed funding: $35M
- Latest round: Series B (Jun 14, 2010)
- Investors on record: 2

## About

TerraPower, LLC specializes in the development of advanced nuclear technology, focusing on sustainable and innovative energy solutions such as the Natrium Reactor, aimed at enhancing electricity generation efficiency. Founded in 2006 in Washington, US, TerraPower, LLC develops next-generation nuclear power systems. The company was co-founded by Bill Gates and has received a total of USD 750.00 mn in funding, with the latest round occurring in August 2022, primarily led by SK Group. In June 2025, TerraPower, LLC raised USD 650 million in venture funding from new investors Nventures and HD Hyundai Energy Solutions. It has engaged in six deals to date, with a headquarters located in Bellevue, WA.TerraPower primarily offers the Natrium Reactor, a next-generation nuclear power plant currently under construction in Wyoming. This innovative facility employs advanced molten salt energy storage systems to provide a stable electricity supply, particularly when renewable energy sources are not generating power. The Natrium technology is designed to operate at low pressure, utilizing liquid metal heat transfer for enhanced safety and efficiency compared to traditional nuclear plants. Its unique two-island construction separates the nuclear and non-nuclear sections, allowing for greater flexibility in energy production while reducing overall operational costs. TerraPower targets markets that prioritize clean energy solutions, including utility companies and governments seeking to balance energy demands with sustainable practices in North America and potentially expanding into international markets.TerraPower's revenue is derived primarily from partnerships and direct contracts related to the construction and operation of its Natrium Reactor. These transactions typically involve agreements with utility providers and government entities that require advancements in nuclear and renewable energy technologies. The company engages in long-term agreements that may include performance-based pricing models, aligning costs with operational efficiency and energy output. Clients benefit from cost-effective energy solutions that the Natrium technology promises, reflecting the company's focus on providing innovative energy solutions to large-scale energy consumers and public utilities.In August 2022, TerraPower, LLC raised USD 750.00 mn in venture funding, co-led by SK Group, to further product development. The company is focused on enhancing its Natrium Reactor technology and aims to expand its presence in North America and potentially into international markets. The funding will support ongoing development efforts, ensuring the timely launch of new energy solutions that align with growing demand for clean energy alternatives.

## Funding rounds

- Series B, Jun 14, 2010, $35M — CRV, Khosla Ventures
- Series A, Dec 1, 2008 — CRV

## Investors

- CRV (https://capitalatlas.ai/funds/crv) — Series A, Series B
- Khosla Ventures (https://capitalatlas.ai/funds/khosla-ventures) — Series B