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Spot price or fixed price? Electricity package calculator

Example: with 3,000 kWh a year and typical usage, a spot package (margin 0.5 c/kWh) would have cost 353.50 € at the last 12 months’ prices; a fixed price only pays off below 11.78 c/kWh.

The calculator works out what your electricity energy would have cost at the actual Estonian exchange (spot) prices of the last 12 full months and compares it with a fixed-price package. Exchange prices and Estonian consumption data come from Elering’s open data and update automatically once a month.

How is it calculated?

  • Spot package = (exchange price + seller’s margin) × 1.24 (VAT) + monthly fee. The average exchange price depends on when you use electricity: typical weights every quarter-hour by actual Estonian consumption (more is used in winter and in the evening, when prices are also higher), even takes the simple average and night only hours 23–07.
  • Fixed package = consumption × offer price incl. VAT.
  • Network fee, electricity excise and renewable energy charge are the same for both packages, so they are left out of the comparison – they come on top on your bill.

Note: the past does not predict the future. Exchange prices vary a lot from year to year – a fixed price is insurance against an expensive winter. If you can shift consumption to cheap hours (e.g. charging an EV or water heater at night), a spot package is usually cheaper. Work out appliance costs with the electricity cost calculator.

Frequently asked questions

Is a spot package or a fixed price cheaper?
Over the long run a spot package is usually cheaper, because a fixed price includes the seller’s risk margin. A fixed price, however, protects against an expensive winter and gives a predictable bill. The calculator shows, with the actual prices of the last 12 months, which would have been cheaper for your consumption and below which fixed price it pays off.
Does the network fee depend on the electricity package?
No. You pay the network fee to the network operator (e.g. Elektrilevi), and it depends on your network package, not the electricity seller’s package. The electricity excise and renewable energy charge are also the same for both packages. That is why the calculator compares only the energy price.

Sources

Based on official sources · last reviewed 2026-11-06.