Updated September 30, 2026 · TariffCue Editorial Team
100Green vs Energie
100Green vs Energie: the differences
| Compare |  100Green |  Energie |
|---|---|---|
| Exit fee | £0 | €0 |
| Renewable basis | Ppa | Own generation |
| Smart meter required | YesHas it | No |
| Markets | GB | BE |
| Unit rate | Not confirmed | €0.168 |
| Standing charge | Not confirmed | €35 |
| Export rate | £0.12 | Not confirmed |
Same on both: Fixed terms (12), Renewable share (100%).
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Key differences
- 100Green scores higher overall: 9.3 vs 8.8.
- Smart meter required: only 100Green.
- Support channels: only 100Green offers Phone, Chat.
- Tariff types: only 100Green offers Ev, Time of use.
- Tariff types: only Energie offers Dynamic.
- Markets: only 100Green offers GB.
- Markets: only Energie offers BE.
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.
Energie
Energie is a Belgian energy supplier that suits households wanting a free exit fee and a fully renewable supply without giving up dynamic pricing. It charges a unit rate of €0.17, a standing charge of €35 and a fixed term of 12 months.
Score breakdown
| Area | 100Green | Energie |
|---|---|---|
| Cost | 9.4HigherExit fees are £0, and the supplier ranks 1 of 29 brands on that measure. | 9.0Exit fee of €0 and a unit rate of €0.17 pull the score up; the standing charge of €35 is the drag. |
| 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. | 8.6A fixed term of 12 months, variable, fixed and dynamic options and no smart meter requirement widen what is on offer. |
| Trust | 8.9Trades as Green Energy (UK) Limited and has been trading since 2001, based in GB. | Not confirmed |
Licences and countries
| Country | 100Green | Energie |
|---|---|---|
| Headquarters | United Kingdom | Belgium |
Additional countries for 100Green: 1. Additional countries for Energie: 1.
Positions in our rankings
| Ranking | 100Green | Energie |
|---|---|---|
| Green energy suppliers | 12 of 56 | 4 of 56 |
| Smart and dynamic electricity tariffs | 8 of 43 | 3 of 43 |
| Energy tariffs without exit fees | 5 of 19 | 2 of 19 |
What we checked
100Green
- 100green.com: 13 facts, checked September 30, 2026
Energie
- energie.be: 13 facts, checked September 30, 2026
Every fact side by side
| Fact | 100Green | Energie |
|---|---|---|
| Tariff types | Fixed, Variable, Green, Ev, Time of use | Variable, Fixed, Dynamic, Green |
| Fuels | Electricity, Gas | Electricity, Gas |
| Legal entity | Green Energy (UK) Limited | Energie.be NV |
| Headquarters | United Kingdom | Belgium |
| Founded | 2001 | Not confirmed |
| Support channels | Phone, Email, Chat, Help centreCovers more | Email, Help centre |
Where each stands against the rest
| Fact | 100Green | Energie | Median |
|---|---|---|---|
| Unit rate | Not confirmed | €0.168below the median | €0.17 |
| Standing charge | Not confirmed | €35highest quarter | €14.99 |
| Renewable share | 100%at the median | 100%at the median | 100% |
| Export rate | £0.12at the median | Not confirmed | £0.12 |
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.
Energie
Pros
- The exit fee is €0, which ranks 1 of 29 brands ranked, the strongest of the rankings here.
- A unit rate of €0.17 places Energie at 10 of 23 brands ranked.
- Renewable electricity at 100% across the range, not on a single green add-on.
Cons
- The standing charge of €35 sits above the €14.98 median across the suppliers compared, and ranks 13 of 16 brands ranked.
- Support runs on email and help centre only, so a billing query goes in writing rather than down a phone line.
- Electric vehicle and time-of-use tariffs are not among its variable, fixed and dynamic, while Enddesa lists fixed, time of use and ev.
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.
Energie
Who it suits
- Households in BE that want renewable electricity at 100% and would rather not install a smart meter.
- Anyone who expects to move or change supplier mid-term, since the exit fee is €0.
- Households weighing a fixed rate against dynamic pricing, since the range covers variable, fixed and dynamic.
Who should look elsewhere
- Buyers after prepay or electric vehicle tariffs, since Enddesa lists fixed, time of use and ev and Energie lists variable, fixed and dynamic.
- Households who want a wider set of structures to compare, since Electricity Ratings lists fixed, ev and time of use.
Country by country
| Country | 100Green | Energie |
|---|---|---|
| Belgium | 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.
Energie
What does a unit of electricity cost on an Energie tariff?+
Energie charges a unit rate of €0.17 for electricity, and adds a standing charge of €35 on top. The unit rate is the part that follows the market, while the standing charge is the fixed part of the bill that stays the same whatever you use. Both figures are quoted in euros.
Is there an exit fee if I switch supplier early?+
The exit fee is €0, and the contract runs a fixed term of 12 months. A household can therefore move house, change supplier or renegotiate without paying to break the deal. On our data that exit fee position is 1 of 29 brands ranked.