SpotVahtiIn short
Our comparison includes 4 contracts from Imatran Seudun Sähkö: 1 spot-price contract, 1 fixed-price contract and 2 hybrid contracts with a usage effect. The seller’s cheapest contract by home type: Apartment (2,000 kWh): Ajantasa, about 210 € a year, rank 9/76; Detached house, no electric heating (6,000 kWh): Ajantasa, about 538 € a year, rank 7/75; Detached house, direct electric heating (18,000 kWh): Ajantasa, about 1,606 € a year, rank 8/71. The cheapest in the whole comparison for an apartment is Nordic Green Energy Pörssisähkö ei kuukausimaksua, 181 € a year. Prices were checked on 12 Nov 2026 on the seller’s own website.
Contracts
Ajantasa Spot price
Margin 0.48 c/kWh, no monthly fee 4 mo · then monthly fee 4.90 €
Price checked 11 Nov 2026 on the seller’s website
Voima 24 kk Fixed price · 24 mo
10.49 c/kWh, monthly fee 5.90 €
Price checked 11 Nov 2026 on the seller’s website
Voima Joustava 24 kk Usage effect · 24 mo
9.69 c/kWh ± usage effect, monthly fee 5.90 €
Price checked 12 Nov 2026 on the seller’s website
Seller’s website ↗ – Imatran Seudun Sähkö Voima Joustava 24 kk
Voima Joustava 12 kk Usage effect · 12 mo
10.69 c/kWh ± usage effect, monthly fee 5.90 €
Price checked 12 Nov 2026 on the seller’s website
Seller’s website ↗ – Imatran Seudun Sähkö Voima Joustava 12 kk
Annual price by home type
| Contract | Apartment 2,000 kWh | Terraced house 5,000 kWh | Detached house 6,000 kWh | Heat pump 10,000 kWh | Electric heating 18,000 kWh |
|---|---|---|---|---|---|
| Ajantasa | 210 € rank 9/76 | 456 € rank 7/76 | 538 € rank 7/75 | 900 € rank 7/73 | 1,606 € rank 8/71 |
| Voima 24 kk | 281 € rank 57/76 | 595 € rank 54/76 | 700 € rank 53/75 | 1,120 € rank 53/73 | 1,959 € rank 51/71 |
| Voima Joustava 24 kk | 267 € rank 48/76 | 561 € rank 37/76 | 659 € rank 35/75 | 1,053 € rank 35/73 | 1,839 € rank 35/71 |
| Voima Joustava 12 kk | 287 € rank 64/76 | 611 € rank 59/76 | 719 € rank 58/75 | 1,153 € rank 58/73 | 2,019 € rank 57/71 |
| Cheapest in comparison | 181 € Nordic Green Energy | 432 € Herrfors | 511 € Herrfors | 863 € Herrfors | 1,549 € Herrfors |
Frequently asked questions
Is Imatran Seudun Sähkö the cheapest in the comparison?
In an apartment (2,000 kWh) the seller’s cheapest contract, Ajantasa, ranks 9/76 at about 210 € a year, while the cheapest in the comparison costs 181 €. With direct electric heating (18,000 kWh) the cheapest is Ajantasa, ranked 8/71 (1,606 €, cheapest 1,549 €). The ranking depends on consumption, so calculate your own price in the comparison.
Imatran Seudun Sähkö Ajantasa: what are the margin and monthly fee?
The margin is 0.48 c/kWh and the monthly fee 4.90 €/month. Intro offer: no monthly fee for the first 4 months. On top of that you pay the hourly spot price. Price checked on 11 Nov 2026 on the seller’s website.
Imatran Seudun Sähkö Voima 24 kk: what is the fixed price?
The energy price is 10.49 c/kWh and the monthly fee 5.90 €/month, with a 24-month term. Price checked on 11 Nov 2026 on the seller’s website.
Imatran Seudun Sähkö Voima Joustava 24 kk: how are the price and the usage effect calculated?
The fixed part of the energy price is 9.69 c/kWh and the monthly fee 5.90 €/month, with a 24-month term. Each month a usage effect is added or subtracted: your consumption-weighted spot price minus the month’s average spot price. Based on actual Datahub consumption it averaged +0.14 c/kWh over 1 Nov 2025–31 Oct 2026 for metering points using 2,000–20,000 kWh a year. Price checked on 12 Nov 2026 on the seller’s website.
Imatran Seudun Sähkö Voima Joustava 12 kk: how are the price and the usage effect calculated?
The fixed part of the energy price is 10.69 c/kWh and the monthly fee 5.90 €/month, with a 12-month term. Each month a usage effect is added or subtracted: your consumption-weighted spot price minus the month’s average spot price. Based on actual Datahub consumption it averaged +0.14 c/kWh over 1 Nov 2025–31 Oct 2026 for metering points using 2,000–20,000 kWh a year. Price checked on 12 Nov 2026 on the seller’s website.
Does the price include transmission?
No. Transmission fees and electricity tax are paid to your local network company and are the same whichever seller you buy electricity from. The annual prices in the comparison include energy, the seller’s margin and the monthly fee, with 25.5 % VAT.
Which contract is cheapest for you?
Calculate your annual price for every contract with your home type and consumption.
Read next
Spot prices: Ember, European Wholesale Electricity Price Data (CC-BY 4.0), original source Nord Pool. Contract prices from the seller’s own website. Method: How we compare. Spotted a mistake? [email protected]