Scottish and Southern Energy said electricity demand was down 4%
Scottish and Southern Energy customers have used less electricity and gas this winter, despite the cold weather.
The Perth-based company said gas demand was down 5% and electricity 4% lower, compared with this time last year.
But the firm has increased its number of customers by 200,000, taking it to 9.75 million.
SSE said it remained on course to meet full year targets and to deliver a moderate profit, as well as a dividend of at least 70p per share.
But the energy giant, the second largest electricity generator in the UK, said it had given all its pre-pay customers a £12 credit to help with the cost of heating bills.
It also confirmed it was close to completing a deal with a contractor to clear a blockage in the tunnel carrying water from the reservoir to the power station at the Glendoe Hydrapower plant, although it added that this was unlikely to generate electricity until 2011/2012.