South Holland residents are among 40,000 people who will save an overall average of £121 on their gas and electricity bills this year.
The latest auction involved merged consortiums led by Peterborough City Council and Greater Manchester.
Scottish Power won all dual fuel and pre-payment categories, Ovo Energy won online billing for electricity only customers and Co-operative Energy won paper billing for electricity only contracts.
Average dual fuel average savings range from £149 for online billing with monthly direct debits to £54 for prepayment bills with key cards.
There’s an average £78 saving for paper billing dual fuel customers who pay by monthly direct debit.
Average savings for electricity only range from £98 for online billing monthly direct debits to £44 for prepayment bills with key cards.
Electricity only customers who have paper billing with monthly direct debits are to save an average £77.