September 30, 2025

AI’s growing energy demand + carbon concerns powers momentum for nuclear

Growing Energy demand provided demand pull for both traditional and next-generation reactors throughout Q3 of 2025. Yet further boosting momentum was the announcement by the DOE that they had selected ten ventures for accelerated design review of a test unit. This has lit a fire under those and other ventures already making progress to try to get the DOE to allow them to build something by July 4, 2026.

August 22, 2025

Planetary Joins Launch of Marine Carbon Dioxide Removal Coalition

Planetary-mCDR

Planetary Technologies, a Nucleation portfolio company, is among the founding members of the new Marine Carbon Dioxide Removal (mCDR) Coalition, a first-of-its-kind forum to support responsible growth of ocean-based carbon removal.

The coalition, co-chaired by the Carbon Business Council and the World Ocean Council, brings together innovators, scientists, and policy leaders to accelerate research, support evidence-based policy, and build collaboration across the marine CDR ecosystem. Founding members include Planetary, Banyu Carbon, Captura, Capture6, Ebb Carbon, Equatic, Isometric, Limenet, Puro.earth, SeaO2, Vesta, and Vycarb, with additional observers such as Carbon180, Ocean Visions, and the Institute for Responsible Carbon Removal.

Marine carbon dioxide removal is increasingly recognized as a critical tool to complement emissions reductions and contribute to climate goals. The ocean covers 71% of the Earth’s surface and holds immense potential to help achieve net zero when approached with scientific rigor, community engagement, and environmental safeguards. The launch of this coalition provides the mCDR field with a dedicated forum for knowledge-sharing, international coordination, and responsible development.

Planetary has already emerged as a global leader in this space, recently winning an XPRIZE Carbon Removal Award for its ocean alkalinity enhancement approach. By joining the coalition, Planetary and its peers aim to ensure that marine CDR methods advance in a way that is credible, collaborative, and environmentally responsible.

Read the full announcement from the Carbon Business Council here.

April 23, 2025

Planetary wins XFactor Prize from XPRIZE ()

XPRIZE announced its carbon removal winners on Earth Day and Planetary Technologies, a Nucleation Capital portfolio venture, won a $1 million XFactor award for it mCDR technology.

September 18, 2023

Nucleation’s first two years

Nucleation Capital completed its second full year as a fund at the end of June, 2023. During these eight quarters, we made ten investments and built a portfolio that showcases how we define our thesis. This then begins to answer the question that many people have: How does a nuclear-focused climate venture fund invest into this sector? The answer is presented in the Two Year Report which we have posted below. We have now commenced our third year and, as an "evergreen" fund, we are continuing to raise capital and welcome new investors. If you are an accredited or qualified investor and interested in getting an allocation in our ongoing investments, please let us know.


(Click the image to download Nucleation's Two Year Report)

March 31, 2023

Planetary Technologies

Planetary Technologies – A Canadian-based developer of an Ocean Alkaline Enhancement (OAE) approach to marine carbon dioxide removal (mCDR) which leverages the water cooling systems of existing nuclear power plants or waste treatment plant effluents to effect distribution of their "antacide" and maximize decarbonization of seawater and climate restoration.

 

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