Alva Energy (Series A)
Funding Details
Awarder
Inbox
Date Award
February 12, 2026
Vertical
Nuclear Technology
Funding Amount
$33,000,000
Company Info
Founders
James Krellenstein
Market
Clean Power
Location
Cambridge, MA, United States
Coinvestors
8VC, Alumni Partners, Isabelle Boemeke, Logos Capital, Mercator Partners, NGP, Playground Global, Segra Capital Management, Simon Holmes a Court
Company Description

Alva Energy is a nuclear technology company unlocking gigawatts of new clean power from the infrastructure that already exists. By productizing nuclear plant upgrades, known as 'uprates,' Alva makes it faster, easier, and more predictable to boost output from existing U.S. reactors. Its standardized approach adds 200-300 megawatts of capacity per reactor, targeting a total of 10 gigawatts across the fleet.

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