Bills are expected to increase this financial year to around £2.6 million.
Speaking to the publication, Alison Hughes, director of strategy and facilities for the trust, says that the hospital is aiming to cut costs by becoming more energy efficient.
"We are taking steps to improve our energy efficiency, including using low energy bulbs and improving the insulation of the steam pipes that supply the radiators," she adds.
Last week, it was reported that Cambridgeshire county council's bill for street lighting has almost doubled in the space of a year.
A report in the Hunts Post stated that the bill for lighting the region's streets hit £1.14 million during 2008.
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.