Pulrose power station has come under attack from vandals.
A large window has been smashed, resulting in around £5,000 worth of damage.
It's not known what was used to break the window but it was toughened glass so it must have been something quite substantial.
There is also a large perimeter fence around the station, with the window in question being about 20 feet away.
Braddan police are investigating the incident and say this act of vandalism has caused considerable inconvenience.
They want to hear from anyone who was in the area at the time or noticed people hanging around in the early hours of last Thursday (July 16).