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Electricity & gas · Czechia
Checked 2026-09-30

⏱️ Fixed price or dynamic (hourly) electricity contract in Czechia: which is right for me?

The short answer

A fixed price stays the same for an agreed period. A dynamic price follows the wholesale market hour by hour, so it can be cheaper when you shift your use, and more expensive at peak times.

📜 The rules in Czechia

Fixed and dynamic contracts

Czech energy law allows contracts with a dynamically set price: the price changes during the contract in line with short-term market prices. Such a contract only takes effect if your supply point has interval (smart) metering, and you can end it at any time with one month's notice.

  • The one-month notice period starts on the first day of the month after your notice reaches the supplier. ERÚ publishes a template for this notice. (eru.gov.cz)
Official source: eru.gov.cz · Checked 2026-09-30

🪜 Step by step

  1. Look at how you use energyA dynamic price suits people who can move use to cheap hours, for example with an electric car, a heat pump or a timer. It needs a smart meter.
  2. Check what is on offerSee below what the rules in Czechia say about fixed-price and dynamic contracts and who has to offer them.
  3. Read the risks and the termsBefore you sign, the supplier must explain the costs and risks of a dynamic contract. Check the notice period and any exit fee.
  4. Review after a few monthsCompare your bills with what a fixed price would have cost. You can switch again under your contract terms.

📇 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

❓ Questions

Is a dynamic contract cheaper?

Only if you use a lot of power when prices are low. At peak times it can cost much more than a fixed price.

Do I need a smart meter?

Yes. Hourly prices need a meter that records your use per hour or per quarter hour.

Can a fixed price still go up?

Normally not during the fixed period, but taxes and network charges can change. The rules for Czechia are on this page.

📎 Sources

Checked: 2026-09-30

🧭 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→🔄Switching supplier→📟Smart meter→🧾Wrong or high bill→💸Can’t pay the bill→

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