Updated October 14, 2026 · TariffCue Editorial Team
100Green vs Ma Petite Facture
What sets them apart
| Compare |  100Green | Ma Petite Facture ReviewSee alternativesSee alternatives |
|---|---|---|
| Fixed terms | 12 | 12, 24, 36Covers more |
| Exit fee | £0 | €0 |
| Renewable basis | Ppa | Certificates |
| Smart meter required | YesHas it | No |
| Markets | GB | FR |
| Export rate | £0.12 | Not confirmed |
| Customers | Not confirmed | 380,000 |
Same on both: Renewable share (100%).
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Key differences
- 100Green scores higher overall: 9.3 vs 9.2.
- Smart meter required: only 100Green.
- Tariff types: only 100Green offers Ev.
- Fixed terms: only Ma Petite Facture offers 24, 36.
- Markets: only 100Green offers GB.
- Markets: only Ma Petite Facture offers FR.
Our verdict on each
100Green
100Green suits GB households that want renewable electricity and a free exit fee, with fixed terms set at 12 months and no charge to leave before the term ends. The offer covers both fuels, and the renewable supply sits behind a power purchase agreement.
Ma Petite Facture
Ma Petite Facture suits French households that want renewable electricity and a supplier they can leave without penalty, with renewable content of 100% at an exit fee of €0. The trade-off is commitment: fixed terms run 12, 24 and 36, so a longer block is the price of locking the rate.
Score breakdown
| Area | 100Green | Ma Petite Facture |
|---|---|---|
| Cost | 9.4Exit fees are £0, and the supplier ranks 1 of 29 brands on that measure. | 9.4Entry prices of €23.03 against renewals of €29.40 in this group, so the term decides the bill. |
| Offer | 9.4HigherTariffs cover fixed, variable and green, a wider set than Octopus Energy at fixed, variable and green or Vattenfall at fixed, green and variable. | 9.0A customer base of 380,000 in FR and an exit fee of €0 make the switch low friction. |
| Trust | 8.9Trades as Green Energy (UK) Limited and has been trading since 2001, based in GB. | Not confirmed |
Where each is licensed and available
| Country | 100Green | Ma Petite Facture |
|---|---|---|
| Headquarters | United Kingdom | France |
Additional countries for 100Green: 1. Additional countries for Ma Petite Facture: 1.
Which one suits you
Pick 100Green if offer and smart meter required matter most.
Pick Ma Petite Facture if fixed terms matter most.
Positions in our rankings
| Ranking | 100Green | Ma Petite Facture |
|---|---|---|
| Green energy suppliers | 12 of 56 | 14 of 56 |
| Smart and dynamic electricity tariffs | 8 of 43 | 10 of 43 |
| Energy tariffs without exit fees | 5 of 19 | 8 of 19 |
Sources behind this comparison
100Green
- 100green.com: 13 facts, checked September 30, 2026
Ma Petite Facture
- ohm-energie.com: 12 facts, checked September 30, 2026
Every fact side by side
| Fact | 100Green | Ma Petite Facture |
|---|---|---|
| Tariff types | Fixed, Variable, Green, Ev, Time of useCovers more | Fixed, Variable, Green, Time of use |
| Fuels | Electricity, Gas | Electricity, Gas |
| Legal entity | Green Energy (UK) Limited | Ohm Energie |
| Headquarters | United Kingdom | France |
| Founded | 2001 | Not confirmed |
| Support channels | Phone, Email, Chat, Help centre | Email, Chat, Phone, Help centre |
Where each stands against the rest
| Fact | 100Green | Ma Petite Facture | Median |
|---|---|---|---|
| Renewable share | 100%at the median | 100%at the median | 100% |
| Export rate | £0.12at the median | Not confirmed | £0.12 |
| Customers | Not confirmed | 380,000below the median | 850,000 |
Median across 58 listed providers.
Pros and cons
100Green
Pros
- Renewable electricity at 100%, with the supply behind it coming from a power purchase agreement.
- Own generation is rewarded: exports are paid at £0.12.
- Both fuels come from one supplier, with electricity and gas covered on the same account.
Cons
- A smart meter is required for the electric vehicle tariff, so meter status decides who can take that plan.
- Fixed terms run for 12 months only, so no longer fixed term is listed for anyone wanting a rate locked for years.
- Supply covers GB only, so a household outside that market has to look elsewhere.
Ma Petite Facture
Pros
- An exit fee of €0, ranking 1 of 29 on that measure, keeps switching cheap.
- Tariff types run fixed, variable and green under a single supplier, and fuels cover electricity and gas for a dual fuel household.
- Renewable content of 100%, made good through certificates.
Cons
- Renewal is the sharp end: prices after a fixed term in this group sit at €29.40, while entry prices list at €23.03.
- Fixed terms run 12, 24 and 36, so a longer block means a longer wait before you can move or renegotiate.
- The supplier operates in France only, which narrows the comparison to a single market.
Who each suits
100Green
Who it suits
- Households in GB that want renewable electricity and gas from one supplier.
- EV drivers who already have a smart meter or are ready to have one fitted.
- Anyone who may move mid-term and wants a free exit fee.
Who should look elsewhere
- Powerpeers, for a dynamic tariff: 100Green's list is fixed, variable and green, while Powerpeers runs dynamic, fixed and variable.
- Vattenfall, for a household that wants only fixed, green and variable choices, since Vattenfall lists fixed, green and variable without the vehicle and time-of-use options.
Ma Petite Facture
Who it suits
- Households in FR that want renewable supply: renewable content is 100% and a smart meter is not required.
- Dual fuel households, since fuels cover electricity and gas.
- Anyone wary of early exit charges: the exit fee is €0 on fixed terms of 12, 24 and 36.
Who should look elsewhere
- Households that want a prepaid tariff: electricity-ratings lists one in fixed, ev and time of use, which is not among fixed, variable and green.
- Anyone after a dynamic tariff: Powerpeers lists that type in dynamic, fixed and variable, which the fixed, variable and green range here does not cover.
Country by country
| Country | 100Green | Ma Petite Facture |
|---|---|---|
| France | No | Yes |
| United Kingdom | Yes | No |
Questions about each
100Green
What does 100Green supply?+
100Green covers both fuels, with electricity and gas available from the same supplier, so a household using both does not need two providers. Renewable supply applies to the electricity side, and gas is bundled into the same account for homes that want one relationship.
Is the electricity genuinely renewable?+
Electricity is listed as 100% renewable, and the basis for that claim is a power purchase agreement. The green offer is tied to contracted renewable generation, which is the part buyers of green tariffs tend to ask about before they switch.
Ma Petite Facture
What will the electricity cost at the start, and what happens at renewal?+
Ma Petite Facture's fixed plans hold a unit rate for the length of the contract, which runs 12, 24 and 36. Across suppliers in this group, entry prices list at €23.03, and prices once a fixed term ends sit at €29.40. Ask for the renewal rate in writing before you switch, because the entry figure is the one that reads lowest.
Is there a fee for leaving early?+
The exit fee is €0, and the brand ranks 1 of 29 on that measure, so leaving does not carry a penalty charge from this supplier. Your current supplier's terms are a separate matter: check whether your existing contract carries an early termination charge before the switch date, because that fee is set by your own contract.