Private company

Last Energy

Logo: Last Energy, CC BY 4.0, via Wikimedia Commons3

American nuclear energy company

Last Energy is an American commercial developer of micro-modular nuclear power plants, established in 2019 by Bret Kugelmass as the commercial spinoff of the Energy Impact Center, an American clean energy research institute. Last Energy plans to build nuclear microreactor 20 MWe power plants and provide full-service project development, including plant design, construction, financing, operations, and decommissioning.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Nuclear Island Module displayed at Data Center World 2024 (DCW)
Photo: Last Energy, CC BY 4.0, via Wikimedia Commons4

Last Energy is an American commercial developer of micro-modular nuclear power plants, established in 2019 by Bret Kugelmass as the commercial spinoff of the Energy Impact Center, an American clean energy research institute. Last Energy plans to build nuclear microreactor 20 MWe power plants and provide full-service project development, including plant design, construction, financing, operations, and decommissioning.2

Sources

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