The Manx Utilities Authority says it made an operating surplus of more than £26 million last year.
Its annual report for 2020/21 is on the agenda during this month's Tynwald sitting.
In the document, the MUA says it sold £2.5 million less electricity over the 12 months because of the coronavirus lockdown periods.
But selling £3.8 million worth of power to the UK meant it could cut electricity prices by more than a penny per unit on the Island.
Crogga still owes the Isle of Man Government money
DoI says works at Liverpool ferry terminal will take longer
Over 50 employment tribunals outstanding at the DoI
Free period products bill raises cost concerns for MHKs
Key road in Ramsey to re-open early this afternoon
Want to start training to become a nurse?
Appeal launched after fly-tipper filmed dumping rubbish
Prepare your pets for Bonfire Night, says Manx charity