The solar panels on Exeter City Council buildings have generated more power than expected.
The hot summer means more power has been supplied in the eight months since they were fitted in March than was predicted for the whole year.
The panels are on, among others, the Civic Centre, Oakwood House offices and the museum's storage facility.
Teenager killed after getting out of ambulance on M5
He crossed carriageway before being hit by car
Thugs jailed for 'ferocious' attack
16 months for beating up man
Public asked for views about Devon libraries
You may be able to use them when they're closed
Christmas cancelled in Crownhill
Lights out to save cash
Hourly services return on Exeter to Waterloo line
Speed restriction removed on SWR line
£1 million Exeter Quay bridge axed
'Doing nothing is not an option'
