Flexible business energy contracts: when they make sense

What 'flexible' actually means

A flexible business energy contract lets you buy your annual energy in tranches at different points during the contract, at the prevailing wholesale price plus a fixed non-commodity margin. Instead of locking one unit rate for 24 months, you might buy 25% each quarter across the year.

It's neither fully fixed nor fully variable — it's active energy management, usually run by an in-house energy manager or a specialist consultant.

Who suits flexible

Flexible contracts typically make sense for businesses using more than about 400,000 kWh/year electricity or 2,000,000 kWh/year gas, with volume and hedging appetite that justifies active management.

• Manufacturers with continuous, predictable load
• Multi-site portfolios with combined volumes in the millions of kWh
• Public sector groups running through frameworks
• Cold-storage and data-centre operators with 24/7 base load

Trade-offs vs a fixed contract

Flexible can beat fixed when the market falls during the contract, but it exposes you to spikes if it rises. It also requires internal resource or an ongoing consulting fee. For most SMEs a well-timed fix outperforms flexible on a total-cost-of-ownership basis.