Aalo Atomics, a nuclear energy startup developing small modular reactors, has raised $100M in Series B funding to accelerate the deployment of its first microreactor facility in Idaho.
The company plans to flip the switch on its debut unit in summer 2026, located on the campus of the Idaho National Laboratory.
The round was led by Valor Equity Partners with participation from 50Y, Alumni Ventures, Crescent Enterprises, Crosscut, Fine Structure Ventures, Gaingels, Harpoon Ventures, Hitachi Ventures, Kindred Ventures, MCJ, NRG Energy, Nucleation Capital, Perpetual VC, Tishman Speyer, VamosVentures, and others.
From lab design to scalable nuclear power
Aalo Atomics’ technology builds on Marvel, an open-source microreactor concept developed by the Department of Energy. The company’s CTO, Yasir Arafat, previously led Marvel’s design at the lab. CEO Matt Loszak emphasized that Aalo’s model aims to overcome the nuclear industry’s history of delays and high costs by focusing on modularity and economies of scale.
If successful, Aalo Atomics plans to roll out thousands of Aalo Pod power plants, each producing 50 MW from clusters of its Aalo-1 microreactors.
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Pairing nuclear with data centers
As part of its upcoming prototype, the company will also build an experimental data center adjacent to the reactor—highlighting the potential of pairing nuclear energy directly with high-demand computing infrastructure.
Competitive energy pricing
Ultimately, Aalo Atomics aims to deliver electricity at $0.03/kWh, positioning its reactors as cost-competitive with new natural gas plants and utility-scale solar. While no firm timeline has been set for achieving this milestone, investors believe the model could reshape clean energy economics for industries like data centers and AI.
