Mark Kemp, director of highways and access for the council, claims that parish councils pay lower rates than counties in energy prices for street lighting.
He added the council will now look for new technologies to "help make lights more efficient and environmentally friendly".
Mr Kemp stated: "Because of the increase in energy prices last year, the price the county council is paying for electricity has almost doubled.
"The county council used the Eastern Shires Purchasing Organisation, which negotiates contracts for authorities across the eastern region. This price was a reduced rate due to changes made in how the contract works to get better value."
It was recently announced by the Scottish government that it is to implement new renewable energy measures to help schools across the country to cut their energy bills.
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