Fusion for high-value heat production

S. H. Ward, M. Majeed and N. J. Lopes Cardozo

Papers from arXiv.org

Abstract: Global consumption of heat is vast and difficult to decarbonise, but it could present an opportunity for commercial fusion energy technology. The economics of supplying heat with fusion energy are explored in context of a future decarbonised energy system. A simple, generalised model is used to estimate the impact of selling heat on profitability, and compare it to selling electricity, for a variety of fusion proposed power plant permutations described in literature. Heat production has the potential to significantly improve the financial performance of fusion over selling electricity. Upon entering a highly electrified energy system, fusion should aim to operate as a grid-scale heat pump, avoiding both electrical conversion and recirculation costs whilst exploiting firm demand for high-value heat. This strategy is relatively high-risk, high-reward, but options are identified for hedging these risks. We also identify and discuss new avenues for competition in this domain, which would not exist if fusion supplies electricity only.

Date: 2025-04
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