August 2026 edition · manually verified data
Truly green electricity in France (August 2026)
Almost every supplier calls its electricity “green” — but the offers are not equal. The real dividing line is the ADEME VertVolt label and how the power is sourced: bought directly from renewable producers, or just covered by origin guarantees purchased separately. This comparison ranks France's suppliers by that standard, with price versus the regulated tariff — every figure sourced from the brand's page and verified manually.
Top “Very committed”
2 / 7
Enercoop · Alterna
Cheapest vs regulated
-19.1%
Ohm Énergie (Extra Éco)
Paid back to producers
45 %
Ilek
Suppliers compared
7
verified pages
VertVolt-certified suppliers
Carrying the official ADEME label: electricity bought together with its origin guarantees from renewable producers. “Very committed” is the stricter of the two levels.
| Supplier | VertVolt label | Sourcing | Price (vs regulated, Jul 2026) | What sets it apart | Welcome offer |
|---|---|---|---|---|---|
| Enercoop | VertVolt “Very committed” | Direct French producers (SCIC co-op) | ≈€0.2531/kWh (+30% vs regulated, cheaper standing charge) | 1st co-op, 572+ producers, no gas | €20 referee + €20 referrer (code PARRAIN_5dmxy) |
| Alterna | VertVolt “Very committed” | Green & local, 100% French origin guarantees | -2% to -5% vs regulated tariff | France's 4th supplier (~350,000 contracts) | Referral suspended (was €20) |
| Ilek | VertVolt “Committed” + B Corp | Direct French producers · 45% paid to them · pick your producer | ≈€0.1985/kWh (+2% vs regulated, 2-yr fixed) | Highest share paid back to producers | €30 referee (code ILEK + client no.) |
| Elmy | VertVolt “Committed” | French origin guarantees bought jointly · 35% paid back | €0.2222/kWh (+14.5% vs regulated, 2-yr fixed) | Founded by Planète OUI's original founder | No code or referral |
| Octopus Energy | VertVolt (100% green FR) | French renewable origin guarantees | €0.1909/kWh (-1.6% vs regulated, ex-tax fixed 2 yrs) | 4.9/5 customer rating on Trustpilot | €40 referee + €40 referrer (code cyan-gnat-95) |
Green but unlabelled — read closely
These offers can be genuinely green and often cheaper, but they carry no VertVolt label in July 2026 — and the green share can be an add-on or vary by plan. Check the details before signing.
| Supplier | VertVolt label | Sourcing | Price (vs regulated, Jul 2026) | What sets it apart | Welcome offer |
|---|---|---|---|---|---|
| Ohm Énergie | No VertVolt label | 100% French renewable included on Classique/Premi'Ohm/Fixe 2 yrs — but a paid add-on on Extra Éco | up to -19.1% on the ex-tax kWh (Extra Éco plan) | Read the fine print: green isn't included everywhere | up to €60 (referral) |
| Mint Énergie | No VertVolt label | Variable greening from 25% to 100% depending on the plan | Competitive vs regulated tariff | 1 tree planted per referral | €10 referee + 1 tree (code 7781448) |
Key takeaways
For the greenest option, the top “Very committed” level goes to Enercoop (co-op, direct producers) and Alterna, while Ilek pays back over 45% of your bill to producers and lets you choose yours.
For the best price while staying green, Octopus Energy is below the regulated tariff with a top-rated service, and Alterna offers -2% to -5%. Unlabelled offers (Ohm, Mint) can be cheaper still — just confirm exactly how green each plan really is.
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Methodology
- Scope: residential green-electricity offers available in France. Suppliers are split by whether they hold the ADEME VertVolt label.
- Prices: kWh compared against the regulated tariff (€0.1940/kWh, base option, 6 kVA, since Feb 2026); the standing charge and exact plan may change the total.
- Verification: each figure is sourced from the supplier's own site and detailed on the corresponding VitePromo page, which shows its last verification date.
Figures may be reproduced freely with a link to this page as the source.
Frequently asked questions
What is the VertVolt label?
VertVolt is the only official French label (run by the ADEME) certifying genuinely green electricity. Unlike origin guarantees — which can be bought separately from the actual power — VertVolt requires the electricity to be purchased together with its origin guarantees from French renewable producers. It has two levels: “Committed” and the stricter “Very committed”, held in 2026 by only a handful of suppliers, including Enercoop and Alterna.
Origin guarantees vs truly green electricity: what's the difference?
An origin guarantee is a certificate a supplier can buy on its own, separately from the electricity you actually consume — so a supplier can market a “green” offer while physically sourcing conventional power. Truly green suppliers instead buy the electricity directly from renewable producers. Enercoop and Ilek go further with direct producer contracts; Ilek pays back over 45% of each bill to its producers.
Is green electricity more expensive?
Not necessarily. In July 2026, Octopus (-1.6%) and Alterna (-2% to -5%) are below the regulated tariff, and Ohm Énergie's Extra Éco cuts up to -19.1% on the ex-tax kWh. Enercoop (+30%) and Elmy (+14.5%) cost more — the price of full traceability and, for Elmy/Ilek, a 2-year fixed price. Enercoop's standing charge is actually cheaper than the regulated one.
Which supplier is the greenest?
By the ADEME label, Enercoop and Alterna hold the top “Very committed” level. Ilek stands out for paying back over 45% of each bill to producers and letting you pick your own producer. Unlabelled offers (Ohm, Mint) can still be green, but check the details: Ohm's cheapest plan makes the green option a paid add-on, and Mint's greening ranges from 25% to 100% depending on the plan.
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