European power prices: read your bidding zone, interval, and actual tariff
The European Electricity Monitor board makes available day-ahead observations easier to compare across bidding zones. It can help you understand a price curve or inspect a possible window for a flexible load. Before using that curve, establish the zone, delivery date, timezone, interval, and unit—and whether your own electricity contract actually follows that price.
In this guide
- European power prices: read your bidding zone, interval, and actual tariff
- What day-ahead means
- A bidding zone is not always a whole country
- EUR/MWh versus EUR/kWh
- Why a negative price does not guarantee free charging
- Timezones, missing observations, and daylight saving
- A practical reading workflow
- Questions readers often ask
The displayed wholesale price is not automatically the price charged on a household bill. A useful decision depends on the contract’s energy component, billing interval, supplier terms, and additional charges. A colourful minimum on a market chart is only one part of that calculation.
What day-ahead means
Day-ahead trading establishes prices for electricity delivered during specified intervals on the following delivery day. The delivery interval is part of the price. It is not the publication time and not the current instantaneous cost of every consumer’s electricity.
The old description “one price for every hour everywhere” is no longer adequate. Single Day-Ahead Coupling moved to a 15-minute market time unit for delivery from 1 October 2025. Source products and historical data can still differ. An application may also aggregate quarter-hour observations into an hourly presentation, so a chart’s hour label does not establish that the underlying market is exclusively hourly.
This dashboard’s hourly price series groups available source observations into local-hour averages. Read that as a presentation aggregate. Where a decision depends on an individual quarter hour, use the available interval-specific source data and your tariff’s settlement interval rather than treating an hourly average as four identical prices.
A bidding zone is not always a whole country
Some countries contain several bidding areas. A country flag or a short code is therefore not sufficient to establish the relevant market. Read the full zone name and match it to the area used by the tariff or market question you are researching.
Neighbouring zones can have different prices because the system is constrained. Generation mix, demand, interconnection capacity, and available supply can all affect the result. A difference between two curves does not by itself identify one cause; use the relevant source observations if you want to explain a particular day.
EUR/MWh versus EUR/kWh
MWh means megawatt-hour, a unit of energy. One MWh equals 1,000 kWh. To convert an energy price from EUR/MWh to EUR/kWh, divide by 1,000. Do not confuse either unit with MW or kW, which measure power.
For a hypothetical market price of 100 EUR/MWh, the equivalent wholesale energy price is 0.10 EUR/kWh. A load consuming 10 kWh would represent 1 euro of energy at that rate, before any other applicable charges. This example is arithmetic, not a live reading or a promise about a supplier’s bill.
| Quantity | Example unit | What it measures |
|---|---|---|
| Power | kW or MW | Rate of using or producing energy |
| Energy | kWh or MWh | Amount used or produced over time |
| Market energy price | EUR/MWh | Price for energy in the stated product and interval |
| Consumer energy component | EUR/kWh | One part of a tariff, whose actual terms must be checked |
Why a negative price does not guarantee free charging
A negative wholesale observation means the stated market product cleared below zero. Your bill can still include supplier terms, network charges, taxes, and other components. A fixed-rate tariff may not pass that market change through at all; a dynamic tariff may pass it through under specified rules.
Before scheduling a load, check whether the contract uses quarter-hour, hourly, or another billing treatment. Include the actual controllable energy consumption and any operating constraints. Heating, charging, or running equipment in the cheapest displayed window is only useful if it meets the real task safely and the tariff rewards that shift.
Timezones, missing observations, and daylight saving
The delivery date and local timezone determine how the curve maps to your calendar. A day with a clock change can have 23 or 25 real hours. The dashboard’s fixed local-hour presentation is an overview and is not a complete interval-by-interval settlement record for those exceptional days; repeated local clock hours require UTC or an explicit offset to distinguish them.
An unavailable price is not zero, and a partial set of intervals is not a complete daily curve. A displayed average can be based on available observations rather than every intended interval. Check coverage and source age before using a cheapest-window result or comparing daily totals.
A practical reading workflow
- Match the full bidding-zone name to the relevant contract or market area.
- Check delivery day, timezone, observation age, and available coverage.
- Read the price unit and whether the curve is interval-specific or an hourly average.
- Convert units explicitly if estimating an energy component of cost.
- Apply your actual tariff, including the billing interval and additional charges.
- For automation or a clock-change day, use complete timestamped intervals rather than a simplified hourly overview.
Questions readers often ask
Is 100 EUR/MWh the same as 100 EUR/kWh?
No. It is 0.10 EUR/kWh. The conversion factor is 1,000.
Does a negative market price mean the supplier pays me to consume?
Only your actual contract and charges can answer that. The market observation alone does not establish the retail result.
Why does an hourly chart exist after the 15-minute transition?
An hourly aggregate can be useful for an overview, but it combines underlying observations. It is not the same as four separate quarter-hour prices.
Why can two zones in the same country differ?
Bidding areas can be distinct markets with constrained connections. Read the zone rather than relying only on the country name.
Primary references: ENTSO-E’s SDAC implementation page and the European Commission’s explanation of the October 2025 transition. The live board provides the available observations; your supplier’s contract determines your bill.
