Buxton Opera House in Derbyshire has announced that it will close every Monday next month as part of efforts to reduce its "soaring" energy bills.
The BBC reports that staff at the venue will work remotely or at offices nearby while all of the building's lighting and heating are turned off.
The venue's management said the decision was taken to "lessen the impact of soaring energy costs".
The closures will be on days with no shows, with people being asked not to try to collect tickets in person on those days. The box office will remain open as normal on other days of the week.
Paul Kerryson, the venue's Chief Executive, said: "All our shows are happening but on those Mondays, we will be turning off the lighting and heating to save some money and keep our costs down."