Can my energy supplier raise the price during a fixed contract?
No — a fixed tariff stays fixed. If your supplier changes it anyway, you may cancel immediately at no cost. This is a hard right under the Energy Act 2024.
Under the Energy Act 2024 art. 7 jo. standard terms: a price hike during a fixed contract automatically triggers your right to cancel at no cost — even if a normal cancellation would have cost a remaining-term penalty. The supplier must notify you in writing at least 30 days before, and must expressly state your cancellation right. On variable tariffs changes are allowed, with the same 30-day notice. Government-set taxes (energy tax, ODE surcharge) may be passed through automatically — these sit outside the contractual price.