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Should I fix my energy tariff right now?

It’s the question everyone asks and nobody can answer with total certainty — because it’s really a bet on where wholesale prices go next. But you can make it a sensible bet instead of a guess.

• What fixing actually buys you. Certainty. Your unit rate and standing charge are locked for the term, so a rising cap can’t touch you. The trade: if prices fall, you’re stuck paying more.
• What staying on the cap buys you. Flexibility and no exit fees — but you take every rise on the chin. How the cap works →
• The rough rule of thumb. If a fix is at or below today’s cap and prices look like rising, fixing is a strong move. If the only fixes on offer are well above the cap, you’re paying a hefty premium for peace of mind — fine if you value certainty, dear if you don’t.
• It’s also about you, not just the market. A steady, predictable household leans towards fixing; a heavy-overnight or EV home might do better on a time-of-use tariff entirely. Which tariff type suits you →

Joulely prices fixed, variable and time-of-use deals against your own usage and shows the real £ gap — so “should I fix?” stops being a gut call and becomes a number you can see.