SpotVahtiIn short
Our comparison includes 4 contracts from Vattenfall: 2 spot-price contracts and 2 fixed-price contracts. The seller’s cheapest contract by home type: Apartment (2,000 kWh): Optimi Pörssisähkö, about 215 € a year, rank 15/76; Detached house, no electric heating (6,000 kWh): Optimi Pörssisähkö, about 544 € a year, rank 14/75; Detached house, direct electric heating (18,000 kWh): Optimi Pörssisähkö, about 1,614 € a year, rank 13/71. The cheapest in the whole comparison for an apartment is Nordic Green Energy Pörssisähkö ei kuukausimaksua, 181 € a year. Prices were checked on 11 Nov 2026 on the seller’s own website.
Contracts
Optimi Pörssisähkö Spot price
Margin 0.50 c/kWh, monthly fee 2.98 € 12 mo · then monthly fee 5.95 €
Price checked 11 Nov 2026 on the seller’s website
Helppo Pörssisähkö Spot price
Margin 0.00 c/kWh, monthly fee 4.48 € 3 mo · then monthly fee 8.95 €
For apartments and small terraced houses
No margin: you pay only the spot price and the monthly fee.
Price checked 11 Nov 2026 on the seller’s website
Ilmasto Mix 24 kk Fixed price · 24 mo
10.64 c/kWh, monthly fee 5.95 €
Price checked 11 Nov 2026 on the seller’s website
Ilmasto Mix 12 kk Fixed price · 12 mo
11.61 c/kWh, monthly fee 5.95 €
Price checked 11 Nov 2026 on the seller’s website
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 |
|---|---|---|---|---|---|
| Optimi Pörssisähkö | 215 € rank 15/76 | 462 € rank 16/76 | 544 € rank 14/75 | 907 € rank 13/73 | 1,614 € rank 13/71 |
| Helppo Pörssisähkö | 252 € rank 32/76 | 484 € rank 27/76 | – | – | – |
| Ilmasto Mix 24 kk | 284 € rank 61/76 | 603 € rank 57/76 | 710 € rank 56/75 | 1,135 € rank 56/73 | 1,987 € rank 55/71 |
| Ilmasto Mix 12 kk | 304 € rank 72/76 | 652 € rank 70/76 | 768 € rank 69/75 | 1,232 € rank 66/73 | 2,161 € rank 64/71 |
| Cheapest in comparison | 181 € Nordic Green Energy | 432 € Herrfors | 511 € Herrfors | 863 € Herrfors | 1,549 € Herrfors |
Frequently asked questions
Is Vattenfall the cheapest in the comparison?
In an apartment (2,000 kWh) the seller’s cheapest contract, Optimi Pörssisähkö, ranks 15/76 at about 215 € a year, while the cheapest in the comparison costs 181 €. With direct electric heating (18,000 kWh) the cheapest is Optimi Pörssisähkö, ranked 13/71 (1,614 €, cheapest 1,549 €). The ranking depends on consumption, so calculate your own price in the comparison.
Vattenfall Optimi Pörssisähkö: what are the margin and monthly fee?
The margin is 0.50 c/kWh and the monthly fee 5.95 €/month. Intro offer: a monthly fee of 2.98 €/month for the first 12 months. On top of that you pay the hourly spot price. Price checked on 11 Nov 2026 on the seller’s website.
Vattenfall Helppo Pörssisähkö: what are the margin and monthly fee?
The margin is 0.00 c/kWh and the monthly fee 8.95 €/month. Intro offer: a monthly fee of 4.48 €/month for the first 3 months. On top of that you pay the hourly spot price. Price checked on 11 Nov 2026 on the seller’s website.
Vattenfall Ilmasto Mix 24 kk: what is the fixed price?
The energy price is 10.64 c/kWh and the monthly fee 5.95 €/month, with a 24-month term. Price checked on 11 Nov 2026 on the seller’s website.
Vattenfall Ilmasto Mix 12 kk: what is the fixed price?
The energy price is 11.61 c/kWh and the monthly fee 5.95 €/month, with a 12-month term. Price checked on 11 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]