Updated September 30, 2026 · TariffCue Editorial Team
100Green vs Rabot Energy
100Green vs Rabot Energy: the differences
| Compare |  100Green |  Rabot Energy |
|---|---|---|
| Exit fee | £0 | €0 |
| Renewable basis | Ppa | Certificates |
| Smart meter required | YesHas it | No |
| Markets | GB | DE |
| Unit rate | Not confirmed | €0.27 |
| Standing charge | Not confirmed | €15 |
| Export rate | £0.12 | Not confirmed |
| Customers | Not confirmed | 200,000 |
Same on both: Fixed terms (12), Renewable share (100%).
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Key differences
- 100Green scores higher overall: 9.3 vs 8.9.
- Smart meter required: only 100Green.
- Support channels: only 100Green offers Chat.
- Tariff types: only 100Green offers Variable, Time of use.
- Tariff types: only Rabot Energy offers Dynamic.
- Fuels: only 100Green offers Gas.
- Markets: only 100Green offers GB.
- Markets: only Rabot Energy offers DE.
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.
Rabot Energy
Rabot Energy is a German electricity-only supplier for households that want a green tariff with a full year of fixed pricing and nothing to pay for leaving. It charges a unit rate of €0.27 and a standing charge of €15, and support runs on email, phone and help centre.
Score breakdown
| Area | 100Green | Rabot Energy |
|---|---|---|
| Cost | 9.4HigherExit fees are £0, and the supplier ranks 1 of 29 brands on that measure. | 9.0Exit fee of €0 plus a unit rate of €0.27 and a standing charge of €15 carry the cost side. |
| 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. | 8.7Tariff types of dynamic, fixed and ev and green supply of 100% on a certificates basis drive the offer side. |
| Trust | 8.9Trades as Green Energy (UK) Limited and has been trading since 2001, based in GB. | Not confirmed |
Positions in our rankings
| Ranking | 100Green | Rabot Energy |
|---|---|---|
| Green energy suppliers | 12 of 56 | 22 of 56 |
| Smart and dynamic electricity tariffs | 8 of 43 | 19 of 43 |
| Energy tariffs without exit fees | 5 of 19 | 10 of 19 |
Every fact side by side
| Fact | 100Green | Rabot Energy |
|---|---|---|
| Tariff types | Fixed, Variable, Green, Ev, Time of use | Dynamic, Fixed, Ev, Green |
| Fuels | Electricity, GasCovers more | Electricity |
| Legal entity | Green Energy (UK) Limited | RABOT Energy DE GmbH |
| Headquarters | United Kingdom | Germany |
| Founded | 2001 | Not confirmed |
| Support channels | Phone, Email, Chat, Help centreCovers more | Email, Phone, Help centre |
Where each stands against the rest
| Fact | 100Green | Rabot Energy | Median |
|---|---|---|---|
| Unit rate | Not confirmed | €0.27above the median | €0.17 |
| Standing charge | Not confirmed | €15above the median | €14.99 |
| Renewable share | 100%at the median | 100%at the median | 100% |
| Export rate | £0.12at the median | Not confirmed | £0.12 |
| Customers | Not confirmed | 200,000below 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.
Rabot Energy
Pros
- An exit fee of €0 places Rabot Energy at 1 of 29 brands ranked on that measure, the strongest of its three placements.
- Green supply of 100% on a certificates basis, and a smart meter is not required, so the green option needs no new meter.
- Tariff types run dynamic, fixed and ev, putting fixed, dynamic, EV and green with a single supplier.
Cons
- A unit rate of €0.27 ranks 14 of 23 brands on that measure, so Rabot Energy is not the cheapest per unit here.
- The standing charge of €15 ranks 9 of 16, and it lands on the bill whatever you consume.
- Supply is electricity only, electricity, so a household that also holds a gas contract needs a second supplier.
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.
Rabot Energy
Who it suits
- Households in DE that want a green electricity tariff with a full year of fixed pricing and no exit fee.
- Drivers and EV owners, since dynamic, fixed and ev includes an EV tariff alongside fixed and dynamic.
- People who would rather not arrange new metering: a smart meter is not required.
Who should look elsewhere
- Anyone set on a variable tariff: Powerpeers lists dynamic, fixed and variable, and variable pricing is not in Rabot Energy's dynamic, fixed and ev.
- Households that want prepay or time-of-use pricing, both of which appear in fixed, ev and time of use.
- Buyers shopping mainly on the price per unit, given the mid-table position at 14 of 23.
Country by country
| Country | 100Green | Rabot Energy |
|---|---|---|
| Germany | 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.
Rabot Energy
What does Rabot Energy charge for electricity?+
Rabot Energy's published figures are a unit rate of €0.27 and a standing charge of €15, with an exit fee of €0. The unit rate covers the power you actually consume, while the standing charge is a fixed cost for holding a connection at all. Budget with both figures side by side.
Is there an exit fee if I switch away from Rabot Energy?+
The exit fee is €0, so there is nothing to pay for ending the contract early, and that is the measure on which Rabot Energy sits at 1 of 29 brands. A free exit also suits renters and anyone who expects to move house during the term.