Timetable for Derbyshire street light switch-off
A timetable has been released outlining when more than 60 communities in Derbyshire will have their streetlights switched off for part of the night to save money.
The county council aims to cut carbon emissions by 2,000 tonnes a year by turning off lights across the county.
Councillor Simon Spencer said: "We need to take action to cut carbon and help reduce the effects of global warming."
The Conservative-led council needs to save £90m from its budget by 2015.
Details of the switch-off plans will be available to view in each community in libraries, shops or schools and on the county council website.
"We won't switch off all street lights but as most people are in bed between midnight and 5.30am we believe some lighting isn't needed," Mr Spencer said.
The council expects to turn off around 40,000 of its 89,000 street lights between midnight and 5.30am and switch off a further 900 permanently in the next four years.
The move will also save more than £400,000 a year on energy bills.
Lights would not be turned off in town centres, high-crime areas or near sheltered housing, the council said.