Fortum Duo 12 kk is a hybrid electricity contract from Fortum, where the price splits between a fixed portion and a spot-based portion. The hybrid offers the best protection against winter spikes without sacrificing all the benefits of low market prices.
Price and monthly fee
Energy price 9.39 c/kWh on top of Nord Pool spot. Monthly fee 5.99 €/mo. Intro offer: Hybridi + kulutusvaikutus.
Key features
- Hybridi: 50 % kiinteä + 50 % pörssi
- 12 kk lukitus
- 100 % uusiutuvaa sähköä
- Suojaa pahimmilta talvi-piikeiltä
Monthly cost by consumption profile
Estimated monthly cost on this contract (assuming a Nord Pool average of 6.5 c/kWh):
- Apartment 2,000 kWh/yr (1 occupant, district heating): 32.47 €/mo
- Row house 5,000 kWh/yr (2 occupants, district heating): 72.20 €/mo
- Electrically heated detached house 18,000 kWh/yr (4 occupants): 244.34 €/mo
The Verrokit comparison tool calculates an exact monthly estimate based on your annual consumption. Open the comparison →
Who is Fortum Duo 12 kk for?
A hybrid contract suits the consumer who wants a balance between stability and market sensitivity. You get partial protection from expensive winter hours (the fixed part keeps the bill reasonable) but also benefit from cheap summer spot hours (the spot part lowers the bill). A good choice for mid-usage households (row houses, semi-detached) with no strong preference for pure spot or pure fixed.
Pros and cons
Pros
- Balanced solution: partly locked, partly market-sensitive
- Cushions the worst winter spikes while still benefiting from market drops
- Suitable for a broad range of consumers with no special requirements
- Clearer than pure spot but cheaper than fully fixed
Cons
- May be more expensive than pure spot over the long term
- Pricing is more complex — read the contract terms carefully
How do I sign up for Fortum Duo 12 kk?
You can sign the contract directly on the Fortum website — click the ”Choose” button in our comparison to go straight to the order form. You will need your metering point identifier (on your current electricity bill) and your personal ID.
Your old contract ends automatically when the new one takes effect — Fortum handles the transfer for you within 2–4 weeks. You do not need to notify your old provider or your local grid operator separately.
Summary
Fortum Duo 12 kk is Fortum’s hybrid contract at 9.39 c/kWh and a monthly fee of 5.99 €/mo. Intro offer for new customers: Hybridi + kulutusvaikutus. Compare this contract with other offers in our electricity comparison and explore Fortum’s other contracts.
Pricing verified and updated directly from Fortum’s own website in May 2026. Contract terms and prices may change — confirm the final price in the provider’s contract confirmation.