Scottish Water has again achieved its best ever environmental performance with seven successive years of reducing its carbon footprint.
The result was revealed in the company’s 2014/15 annual report.
Douglas Millican, chief executive, said they will continue to focus on delivering further improvements for customers in the years ahead.
The report also showed: £470 million of investment in Scotland’s vital infrastructure was delivered during 2014/15 with a total of £2.4 billion across the 2010-15 investment programme.
This included the building of new treatment works and the upgrading of thousands of miles of pipes.
Douglas Millican, chief executive, said: “As part of our new six-year investment programme, we have plans in place to deliver increasingly reliable and ever-higher quality of service to our customers.
“Our annual report shows we had another excellent year in 2014/15, achieving record levels of customer service and satisfaction.
“Our customers continue to benefit from household charges which are lower than the average in England and Wales.
“We are committed to charges which increase below inflation over the course of the next six years.
“Meanwhile, our investment programme is helping to maintain the high quality of services received by our customers, as well as protecting and enhancing the environment and supporting vital jobs in the Scottish economy.”
John Swinney, Scotland’s deputy First Minister, said: “Scottish Water’s annual report and accounts for 2014-15 show another strong performance. It is continuing to build on the excellent progress that has been made in recent years.
“These positive results clearly illustrate the ability of the public sector to deliver excellence and to support wider economic growth.”
He added: “This performance reflects the commitment of Scottish Water’s management and staff to the successful delivery of these essential services to communities across Scotland.”