Energy tariffs: unit rates, standing charges and terms

Know the parts of a tariff

Record the electricity or gas unit rate, standing charge, payment method, tariff type, contract dates and any exit fee. For Economy 7 or another multi-rate arrangement, record each register and its rate separately.

Variable and fixed tariffs answer different questions

A variable tariff can change under its terms and the relevant regulated framework. A fixed tariff may fix unit rates for a stated term, but your total bill still changes if your usage changes. Use the fixed-versus-variable guide for the trade-offs rather than treating either label as a guaranteed outcome.

Compare the tariff with your real account

Use a dated bill or quote, the same usage period and the same fuel. A monthly Direct Debit is a payment plan, not a tariff rate and not proof of your monthly energy cost. The comparison tool accepts figures you enter; it does not search every supplier.

Check terms before accepting an offer

Look for the contract start and end dates, exit fees, payment requirements, meter or eligibility conditions and what happens at the end of a fixed term. Keep any quote expiry date with the figures you compared.

Resolve account problems before switching

A new tariff will not correct an estimated reading, unexplained charge, credit balance or complaint. Understand the existing account first, then decide whether an alternative quote is useful for future costs.

Common questions