Impacts of water scarcity on thermoelectric plants are more unequivocal than hydropower plants. For example, a scenario-based simulation study showed that 32% of the world's coal-fired power plants  plants are currently experiencing water scarcity for at least five months or more in a year . In the UK, almost 50% of freshwater thermal capacity is lost on extreme high-temperature days, causing losses in the range of average GBP 29-66 million yr-1. For ~20% of particularly vulnerable power plants, these losses could increase to GBP 66-95 million yr-1 annualised over 30 years . Globally, for the period 1981-2010, the utilisation rate of thermoelectric power was reduced by 3.8% during drought years compared to long-term average values , and none of the studies reported increases in thermoelectric power production as a consequence of climate change .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report