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Electricity & gas · Czechia
Checked 2026-09-27

🔄 How do I switch electricity or gas supplier in Czechia?

The short answer

Your supply does not stop when you switch: the cables, pipes and meter stay the same. Only the company that sends the bill changes.

📜 The rules in Czechia

Switching supplier

Sign a contract with the new supplier; with a power of attorney it can handle the switch for you. It takes 1–3 months depending on notice periods (open-ended contracts: max. 3 months from the 1st of the next month). Since 1 Aug 2025 the penalty for leaving a fixed-price contract early is capped at 40% of what you would still have paid.

Official source: eru.gov.cz · Checked 2026-09-27

The market

You choose your electricity and gas supplier freely. The supplier sets the commercial part of the price; distribution (the grid part) is regulated by ERÚ and depends on where you live.

Official source: eru.gov.cz · Checked 2026-09-27

Cooling-off period

You can withdraw from a contract signed off-premises or at a distance within 14 days (30 days after an unsolicited home visit or sales event). When switching this way you can also terminate until the 15th day after supply starts (15-day notice).

Official source: eru.gov.cz · Checked 2026-09-27

🪜 Step by step

  1. Get your details readyTake your latest bill: meter point number, yearly use, and the end date and notice period of your contract.
  2. Compare offersUse the price comparison below and look at the total yearly cost, not only the price per kWh. Check how long the price is fixed.
  3. Sign with the new supplierIn most countries the new supplier arranges the switch, including notice to the old one. Keep the confirmation.
  4. Check the final billRead your meter on the switch date and compare it with the old supplier’s final bill. Any credit must be paid back.

📇 Who to contact

Srovnávač nabídek dodavatelů elektřiny a plynu ERÚ officialCompare electricity and gas offersBefore you switch, or when your price goes up🔗 novysrovnavac.eru.gov.cz
Energetický regulační úřad (ERÚ)Supervises energy companies and explains your rightsFor information, and to report a company that breaks the rules📞 +420 564 578 666🔗 eru.gov.cz
dTestIndependent advice for consumersFor advice, template letters and a second opinion🔗 www.dtest.cz

❓ Questions

Will I be without power when I switch?

No. The physical supply continues; only the contract changes.

Can my old supplier charge an exit fee?

That depends on your contract and on the rules in Czechia shown on this page. Fees usually only apply to fixed-term, fixed-price contracts.

Can I cancel a new contract?

Contracts made at the door, by phone or online usually have a cooling-off period. The rules for Czechia are on this page.

📎 Sources

Checked: 2026-09-27

🧭 Is this still correct?

We check this information carefully, but phone numbers, websites and rules change — and sometimes we get something wrong. Spotted a mistake or a change? Let us know below.

🔗 Also useful

📈Price increase→🧾Wrong or high bill→💸Can’t pay the bill→🏚️Supplier went bust→📣Complaint about a supplier→

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