This depends. Mostly it depends on whether similar subsidies are included for other production methods.
Typically nuclear power operators have capped liability (e.g Price-Anderson in the US), or are simply assumed to be bankrupt in the event of a major incident, and taxpayers would need to pay the cleanup. This liability cap, and hence cap on insurance costs, is a subsidy.
So in short, itβs very hard to disconnect energy prices from various taxes and subsidies.
I really think it shouldn't be a hard line. Large reactors should need higher insurance, small reactors should need lower. One of the things making small reactors more practical is the insurance cost. And since it is a hard line companies figure they might as well build the biggest they can. Seems to hurt everyone involved.
Typically nuclear power operators have capped liability (e.g Price-Anderson in the US), or are simply assumed to be bankrupt in the event of a major incident, and taxpayers would need to pay the cleanup. This liability cap, and hence cap on insurance costs, is a subsidy.
So in short, itβs very hard to disconnect energy prices from various taxes and subsidies.