A university says it could be facing an energy bill rise of more than £11m.
Steve West, vice chancellor of the University of the West of England (UWE) in Bristol, said costs might be as high as £18m in 2023-2024.
He said the price increase would not be passed on to students, despite the impact on the university's budget.
"We're looking at how we can save energy, save costs, but also we're having to look hard about how and where we invest going forward," Mr West said.
UWE's energy bill for the 2021-2022 academic year was £6.5m, while in 2022-23 it was £10.5million, he added.
"Many universities forward purchase [energy], so we forward purchase two years ahead, and that gives us some security.
