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Fortum

Fortum Duo 12 kk

Hybrid – Fortum

Fortum Duo 12 kk is a hybrid contract where the price consists of two components: a fixed base rate (c/kWh) and a monthly consumption effect. The base rate and standing charge are locked for the whole contract term, but the final monthly energy price is calculated as: base rate ± consumption effect. The size of the consumption effect depends on when you use electricity — if your usage is concentrated in cheap spot hours, you get a discount (negative consumption effect). Usage concentrated in expensive hours pushes the price up.

Key features

  • Vuoden mittainen hybridisähkösopimus jossa kiinteä perushinta yhdistyy pörssihinnan pieneen vaikutusosaan
  • Pohjahinta 11.49 c/kWh + perusmaksu 5.99 €/mo — pohja on lukittu koko 12 months sopimuskauden ajaksi
  • Kulutusvaikutus voi laskea tai nostaa kuukausihintaa muutamalla sentillä sen mukaan miten ajoitat sähkönkäyttösi
  • Fortumin tilaston mukaan yhdeksälle kymmenestä Duo-asiakkaasta kulutusvaikutus jää vuositasolla –1 ja +1 sentin väliin per kWh
  • Fortum-sovellus näyttää Nord Pool -varttituntihinnan ja kulutuksen reaaliajassa euroina ja kilowatteina
  • Sähkön alkuperä varmennettu alkuperätakuilla (uusiutuva + ydinvoima) — halutessasi 100 % uusiutuva -lisäpalvelu (4.96 €/mo + 0.41 c/kWh)
  • Suositteluohjelma: 30 € alennus sinulle ja kutsumallesi kaverille

How much does Fortum Duo 12 kk cost per month?

Monthly cost depends on your annual consumption and the monthly Nord Pool spot price. The Verrokit comparison tool calculates an indicative estimate based on your annual consumption and shows the current total automatically. Open Fortum Duo 12 kk in the comparison →

Who is the Fortum Duo 12 kk electricity contract for?

A consumption-effect hybrid suits consumers who can actively time their electricity use to cheaper spot hours — for example EV charging at night, running the dishwasher and washing machine during the day, and moving sauna heating to Saturday afternoon. Typically heavy users and electric-heating households benefit most. The contract is not suitable if you want a fully predictable monthly bill — a pure fixed contract is a better choice for that.

Fortum Duo 12 kk pros and cons — customer experiences 2026

Pros

  • Vuoden hintaturva pohjahintaan — kiinteä 11,49 c/kWh + 5,99 €/kk perusmaksu lukittu koko 12 kuukauden sopimuskauden ajaksi, mikä suojaa pörssin talvipiikeiltä
  • Kulutuksen optimointi voi laskea maksettua hintaa: kun ajoitat pesukoneet, saunan ja lämminvesivaraajan halvimmille tunneille, kulutusvaikutus painuu miinukselle ja alentaa c/kWh-hintaa
  • Maltillinen kulutusvaikutus useimmille — Fortumin oman tilaston mukaan 9/10 Duo-asiakkaan vuoden kulutusvaikutus on ollut vain –1…+1 senttiä per kilowattitunti
  • Lyhyempi sitoumus kuin 24 kk versiossa — voit kilpailuttaa uudelleen vuoden päästä jos markkinatilanne muuttuu tai sähkönkäyttösi profiili osoittautuu erilaiseksi kuin odotit
  • Fortum-sovellus reaaliaikaisilla työkaluilla: näet varttituntihinnat vuorokauden eteenpäin sekä oman kulutuksesi euroina ja kilowatteina, mikä tekee kulutuksen ajoittamisesta käytännöllistä
  • Suomen suurin sähköyhtiö luotettavana toimijana — kotimainen asiakaspalvelu, laaja lisäpalveluvalikoima (Maksujousto, 100 % uusiutuva -alkuperä) ja suositteluohjelman 30 € alennus

Cons

  • Kulutusvaikutus voi nostaa hintaa jos suurin sähkönkäyttösi asettuu arki-iltoihin klo 17–21 kun pörssihinta on tyypillisesti korkeimmillaan — kotitalouksilla joilla ei ole älylaitteita tai ajastimia, säästöpotentiaali jää saamatta
  • Ei maksutonta vaihto-oikeutta puhtaaseen kiinteähintaiseen sopimuskauden aikana (kilpaileva Oomi Jousto 12 kk tarjoaa vaihdon Oomi Kiinteään 6 kk sisällä) — sitoumus on lukittu vuodeksi
  • Hybridimalli on monimutkaisempi kuin perinteinen kiinteähintainen sopimus — kulutusvaikutuksen ymmärtäminen ja kuukausittainen seuranta vaativat perehtymistä sopimusehtoihin ja Fortum-sovelluksen käyttöä
  • Pohjahinta 11,49 c/kWh on korkeampi kuin 24 kk versiossa (9,59 c/kWh) — pidempi lukitus antaa Fortumille paremman katteen suojauskustannuksissa, jonka yhtiö siirtää alempana c/kWh-hintana asiakkaalle

How does Fortum Duo 12 kk compare? Alternatives on the market

Vuoden mittaisten kulutusvaikutus-hybridien kilpailu käydään pääasiassa kolmen tuotteen välillä: Fortum Duo 12 kk, Oomi Jousto 12 kk ja Hehku Jousto 12 kk. Oomi Jousto erottuu joukosta lisäedullaan, maksuttomalla vaihto-oikeudella Oomi Kiinteään 6 kk sisällä, jos hybridimalli ei tunnukaan sopivalta. Fortumin valikoiman sisällä Duo 12 kk on välivaihtoehto puhtaan pörssihinnoitellun Tarkan ja täysin kiinteähintaisen Takuu 24 kk:n välillä — Tarkassa hinta vaihtelee joka varttitunti Nord Poolin mukaan, kun taas Takuussa energiahinta pysyy täsmälleen samana koko sopimuskauden ajan. Jos et halua kulutusvaikutus-osaa lainkaan ja tavoittelet puhtaasti kiinteää 12 kk hintaa, markkinan vaihtoehtoja ovat Cheap Määräaikainen 12 kk, Hehku Kiinteä 12 kk, Aalto Ankkuri 12 kk, Oomi Kiinteä 12 kk ja Vattenfall Ilmasto Mix 12 kk. Vihreitä 12 kk vaihtoehtoja etsivälle Hehku Hiilivapaa 12 kk ja Vihreä Älyenergia Vankka 12 kk tarjoavat 100 % fossiilivapaan alkuperän suoraan sopimuksessa.

Compare Fortum Duo 12 kk’s current total price against other market products in the Verrokit comparison tool — prices update automatically.

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 — is Fortum Duo 12 kk right for you?

Fortum Duo 12 kk is Fortum’s hybrid contract. Intro offer for new customers: +/- kulutusvaikutus. The current price and monthly fee are shown in the product card at the top of this page — you can sign the contract directly from the ”Choose” button.

Good to know before ordering

Pricing and contract details. The prices, monthly fees, intro offers and terms shown here are based on the provider's own information and may change without notice. Promotional offers run for a limited time, and intro benefits typically apply only to new customers. The final price is confirmed in the provider's contract confirmation — verify the contract details from the provider before ordering.

What the prices include. The prices cover electricity energy only, not the local grid operator's electricity transmission. On spot-price contracts the final price varies with the Nord Pool market price by the hour or quarter-hour. The Verrokit comparison tool's monthly estimate is indicative and based on your annual consumption and a Nord Pool average assumption — your actual monthly bill may differ.

Verrokit's role. Verrokit is not a contracting party — the contract is between the consumer and the electricity provider. Verrokit operates as a comparison service and earns a partner commission on some contracts when the user clicks through the "Choose" button. The commission does not affect the price visible to the consumer. The comparison order is based on price data, not on partner relationships. Verrokit is not responsible for individual price changes, errors in data, or interpretation of contract terms.

Need help? For questions about your contract, contact the provider's own customer service. For consumer issues, the Finnish Competition and Consumer Authority's consumer advice and the Energy Authority's electricity market guidance provide free help.

FAQ

Frequently asked questions about Fortum Duo 12 kk

Is Fortum Duo 12 kk a good choice in 2026?
Fortum Duo 12 kk is one of the contracts in the Verrokit comparison. It suits you well if you want a balance between stability and market sensitivity. Your final choice depends on your annual consumption and how much you value a predictable monthly bill or flexibility. The current price and monthly fee are shown in the product card at the top of this page.
How much does Fortum Duo 12 kk cost per month?
Monthly cost depends on your annual consumption and the monthly Nord Pool spot price. The Verrokit comparison tool calculates an indicative estimate based on your consumption and shows the current total. Open Fortum Duo 12 kk in the comparison →
Can I cancel Fortum Duo 12 kk early?
Yes, but early cancellation of a fixed-term contract may carry a fee. Fortum typically charges a cancellation fee scaled to the remaining contract term. The contract term is 12 months from the start date. Read the contract terms carefully before signing.
Is Fortum a reliable electricity provider?
Yes — Fortum is a licensed electricity retailer in Finland authorised by the Finnish Energy Authority. The provider complies with Finnish electricity market law and consumer protection law. Every provider in our Verrokit comparison is trustworthy — ranking is based on price only, not a reliability score.
What is the intro offer on Fortum Duo 12 kk for new customers?
Fortum Duo 12 kk currently offers an intro: +/- kulutusvaikutus. The benefit typically applies to new customers and is one of the best reasons to choose this contract if you're switching from your current provider. Confirm the final terms in Fortum's contract confirmation.

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