WinterLock: Lock in a fixed rate on 50% of your winter electricity

Protect half your business’s winter usage from price changes, through to 31 March 2027.

How WinterLock works

WinterLock fixes your electricity unit rate for the months when your business uses the most power.

Agree your rate: We’ll fix your electricity unit rate for half of the energy you use this winter.
Fixed all winter: From sign-up until 31 March 2027, 50% of your units are charged at your fixed rate.
After winter: your electricity moves to market-based pricing or your standard contract rate.
We provide 100% renewable electricity.

A 50% fixed winter rate doesn’t mean a fixed winter bill. If you use more electricity, your bill will still rise. WinterLock fixes your unit price, so you can focus on usage, scheduling and reducing energy waste.

Why fix your winter rate?

Winter brings higher usage and less room for surprises.

Higher usage: darker evenings, heating and longer trading hours can push consumption up.
Less predictable prices: wholesale markets, network charges and cold spells can all move costs.
Clearer budgets: a known unit rate makes forecasting and cashflow planning easier.

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