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StarCube CEO pitches factory-built 10 MW microreactors, targets $0.20/kWh and four-year refueling

Science, Technology and Energy Committee · May 1, 2026
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Summary

StarCube CEO Bill Spillane told the Science, Technology and Energy Committee the company is developing factory-built, 10 MW pressurized water microreactors using low-enriched uranium, targeting $0.20 per kWh for its first unit and a four-year refueling cycle while citing new NRC rules that enable denser siting.

Bill Spillane, chief executive officer of StarCube, told the Science, Technology and Energy Committee on Wednesday that his Portsmouth-based company is designing factory-built microreactors aimed at lowering New England electricity costs.

Spillane said StarCube is developing a roughly 10-megawatt electrical pressurized water reactor that uses low-enriched uranium and is sized for factory assembly and rapid deployment. "We're designing our reactor from the end working backward to make it financially pencil in," he said, describing 40-foot shipping-container footprints for the reactor, generator and support equipment.

The nut graf: Spillane argued microreactors can be sited closer to loads than traditional large plants and can reduce…

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