Valuing maintenance strategies for fusion plants as part of a future electricity grid
arxiv(2024)
摘要
Scheduled maintenance is likely to be lengthy and therefore consequential for
the economics of fusion power plants. The maintenance strategy that maximizes
the economic value of a plant depends on internal factors such as the cost and
durability of the replaceable components, the frequency and duration of the
maintenance blocks, and the external factors of the electricity system in which
the plant operates. This paper examines the value of fusion power plants with
various maintenance properties in a decarbonized United States Eastern
Interconnection circa 2050. Seasonal variations in electricity supply and
demand mean that certain times of year, particularly spring to early summer,
are best for scheduled maintenance. Seasonality has two important consequences.
First, the value of a plant can be 15
expect if value were directly proportional to its availability. Second, in some
cases, replacing fractions of a component in shorter maintenance blocks spread
over multiple years is better than replacing it all at once during a longer
outage, even through the overall availability of the plant is lower in the
former scenario.
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