The Fuse Energy December 2025 Fixed (12m) V3 tariff is today's cheapest energy fix on average, letting you lock at a typical 15.2% under the current Price Cap, including MSE's £20 dual-fuel cashback. Fuse is a new-ish small challenger supplier, but we've had very strong customer service feedback on it.

Fuse has confirmed it will reduce the rates on this tariff on 1 April 2026 in line with the Government's November 2025 Budget announcement.

• New and existing customers can get it.

• It's fixed for 12 months (though rates will drop in April).

• It's for dual-fuel and electricity-only customers paying by variable monthly Direct Debit.

• There are £50 per fuel exit fees.

• Smart meters are not required.

• You get £20 dual-fuel MSE cashback (£10 for elec-only).