Electricity tariffs in Czechia: spot contracts and distribution rates

The Czech price chart is a useful starting point, not a household price list. To decide whether a cheap interval helps you, check your supply contract, distribution rate and when you actually use electricity. An electric boiler that can wait offers different possibilities from heating that must run during an expensive evening.

Understand what a spot contract changes

A spot contract links the energy component to the short-term market. It does not remove regulated network costs or taxes. A fixed supply price protects a different part of the bill from those regulated charges. ERÚ: electricity price components.

Compare prices using your consumption in each interval. In an invented example, 50 kWh at CZK 1/kWh and 150 kWh at CZK 3/kWh cost CZK 500.00, averaging CZK 2.50/kWh. The simple average of the two prices is CZK 2/kWh. Your heavier use during expensive periods makes the difference.

Low monthly consumption can make the standing charge particularly important. A cheap energy component is not enough if the fixed fee outweighs the saving. Compare a high-price scenario too; historical spot averages cannot guarantee a cheaper winter.

Confirm interval metering and currency conversion

ERÚ says a dynamic-price contract requires interval metering to take effect. Confirm with your distributor that the meter and its billing data are ready; do not assume a digital display alone is sufficient. ERÚ: dynamic-price contracts.

ČEZ’s SPOT formula uses quarter-hour consumption and OTE prices converted from EUR to CZK using the applicable Czech National Bank rate. ČEZ: SPOT calculation.

Our website’s currency display is not your supplier’s invoicing exchange rate. Ask which rate and date your contract uses, including non-business days, and whether published prices already include the supplier fee. To convert a quoted CZK/MWh figure to CZK/kWh, divide by 1,000. Do not mix a EUR market input with CZK fees in one calculation.

Supplier examples and meaningful differences

Checked on 12 September 2026. This is a selection of published offers, not a ranking, endorsement or complete market comparison. Request the current price list for your distribution area and contract date.

For a daily standing charge, use the actual number of billed days. In an invented example, CZK 3/day is CZK 90 in a 30-day month, not the same expense as a fixed CZK 90 every month. Check whether a quoted trading charge includes VAT before comparing it with a net quote.

Worked example: calculate the supplier subtotal first

Assume 200 kWh/month, a consumption-weighted market input of CZK 2/kWh, an invented markup of CZK 0.40/kWh and a CZK 100 monthly supplier fee. Every input below is fictional and before taxes; none is a current supplier quotation or regulated rate.

That subtotal is CZK 2.90/kWh, not the CZK 2/kWh market input. It still excludes distribution, other regulated charges, electricity tax and VAT. Standing network costs can depend on the main circuit breaker; do not substitute your neighbour’s bill. E.ON: understanding an electricity price list.

To reproduce this in our comparison tool, choose CZK and enter 200 kWh, market price 2, markup 0.40 and monthly fee 100 for offer A. Keep its multiplier at 1 and shared costs and shifted consumption at zero. Add any shared costs separately afterwards. It is a scenario tool, not an automatic calculation of Czech distribution tariffs or taxes.

With otherwise identical conditions, invented offers A at CZK 100/month + CZK 0.40/kWh and B at CZK 160/month + CZK 0.20/kWh have equal supplier charges at 300 kWh/month. Below that, A is cheaper; above it, B is cheaper.

Low network tariff is not the same as low spot price

Czech distribution rates distinguish single-rate and dual-rate arrangements. For dual rates, the low-tariff period is a network arrangement, not a guarantee of the lowest wholesale price. Eligibility depends on the relevant rate’s conditions. ČEZ Distribuce: distribution rates.

Check your own distributor’s switching times and equipment requirements. Do not assume that a heat pump or boiler automatically qualifies for a different rate, or that low tariff always means overnight. ČEZ Distribuce: current eligibility conditions.

Moving 40 kWh from CZK 3 to CZK 1/kWh reduces the wholesale component by CZK 80.00, with other terms unchanged. If the move crosses network time bands, include that difference too. Keep appliance controls and circuit limits intact.

Negative prices, solar exports and contract exit

A negative wholesale price can still leave a positive import cost. With no floor or adjustment, an invented −CZK 0.20/kWh market price plus CZK 0.40/kWh markup becomes CZK 0.20/kWh, before network costs and taxes. Ask how your contract treats negative prices rather than assuming that every supplier passes them through identically.

Treat solar exports separately from purchases. Request the export formula, any fees and the treatment of negative-price periods. The import chart alone cannot tell you whether to export, store energy or curtail generation. Battery losses and cycling costs belong in that decision.

For consumer dynamic-price contracts, ERÚ states a one-month notice period beginning on the first day of the month after notice reaches the supplier. This is not the same as “30 days from today”. Check your existing contract separately before switching. ERÚ: notice rules.

Make a comparison that fits your household

• Collect bills, interval imports and separate export readings.
• Record the distributor, distribution rate, breaker size and low-tariff schedule.
• Compare the market formula, exchange rate, markup, standing charge and VAT basis.
• Confirm meter readiness, missing-data corrections, contract dates and exit terms.
• Test only consumption you can realistically move without losing comfort.
• Compare annual cost, not the suggested monthly advance payment.

ERÚ’s comparison service is another starting point for supplier offers. For a dynamic contract, ask how any annual estimate models future market prices and your consumption profile.

Use Czech local time and the correct delivery date when setting timers. Historical hourly analysis can suggest useful patterns, but it cannot promise tomorrow’s cheapest period. This guide helps you assess terms; it is not a personal supplier recommendation or a final-bill quotation.