The director of Sark Electricity is threatening legal action after being ordered to drop his prices.
It is after the Electricity Price Commissioner said the firm can charge no more than 54p per unit from this month.
But David Gordon Brown from the generating company, has written to customers saying the higher price of 66p for December still stands.
He added that he is willing to go to court over the newly imposed price, which he claims could bankrupt the firm.
In the letter to his customers, Mr Gordon Brown said the current invoice for December is in place while Guernsey Electricity and Chief Pleas continue their valuation to possibly buy the company.
Read the letter in full here:
Meanwhile, in response to Mr Gordon Brown's letter, the Sark Electricity User Group say they are "puzzled" by it and that it is "perfectly reasonable to expect electricity to be delivered at 54p."
They have also contradicted Mr Gordon Brown's claim that Guernsey Electricity is considering providing Bailiwick-wide electricity distribution or whether Sark's Chief Pleas have agreed to purchase the company:
The ongoing battle over electricity prices has dominated headlines in Sark for years, with costs at one stage reaching an all time high of 85p per unit, making it the most expensive in the world.