Thurrock Council has received just over £510m in payments following the sale of Toucan Energy Holdings, which the council will use to pay down debt.
Cllr Andrew Jefferies, Leader of Thurrock Council, said: "This not only allows us to pay down a significant amount of debt, and reduces the borrowing costs associated with that debt, it also provides further clarity to our financial position as we continue to work towards Thurrock Council's financial recovery.