Updated September 30, 2026 · TariffCue Editorial Team
Eni Plenitude vs Octopus Energy
Where Eni Plenitude and Octopus Energy differ
| Compare |  Eni Plenitude |  Octopus Energy |
|---|---|---|
| Fixed terms | 24 | 12 |
| Unit rate | €0.172 | €0.168Lower |
| Standing charge | €144 | €6Lower |
| Markets | IT, FR, ES, PT, GR, SICovers more | IT |
| Regions served | Italy | Not confirmed |
| Customers | 11,000,000 | Not confirmed |
Same on both: Exit fee (€0), Renewable share (100%), Renewable basis (Certificates).
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Key differences
- Octopus Energy scores higher overall: 9.4 vs 8.8.
- Unit rate is lower at Octopus Energy: €0.168 vs €0.172.
- Standing charge is lower at Octopus Energy: €6 vs €144.
- Support channels: only Octopus Energy offers Email.
- Eni Plenitude is available in 5 more countries.
- Tariff types: only Octopus Energy offers Green.
- Fixed terms: only Eni Plenitude offers 24.
- Fixed terms: only Octopus Energy offers 12.
- Markets: only Eni Plenitude offers FR, ES, PT.
Our verdict on each
Eni Plenitude
Eni Plenitude suits Italian households that want electricity and gas on a single fixed deal with an energy exit fee of €0. The tariff is listed at 100% renewable on a certificate basis, and the fibre broadband sold alongside gives a second reason to stay with one supplier.
Octopus Energy
Octopus Energy suits Italian households who want to leave without a penalty and still put a green tariff on the bill. It scores 9.4 overall, and the exit fee of €0 removes the biggest cost risk of a fixed term.
Score breakdown
| Area | Eni Plenitude | Octopus Energy |
|---|---|---|
| Cost | 8.8Unit rate of €0.17 sits near the €0.17 market median, while the €144 standing charge sits well above it. | 9.3HigherExit fee is €0 and the unit rate is €0.17, sitting in the middle of the field on both. |
| Offer | 9.3Fixed and variable energy tariffs covering electricity and gas, plus fibre broadband entry €19.90 with 2,500 Mbps download. | 9.4HigherTariffs cover fixed, variable and green across electricity and gas, with 12-month terms and email, phone and chat. |
| Trust | 8.0Founded in 2022 as Eni Plenitude SpA Societa Benefit in IT, with support on phone, chat and help centre. | Not confirmed |
Which one suits you
Pick Eni Plenitude if markets matter most.
Pick Octopus Energy if cost, unit rate, and standing charge matter most.
How the counts compare
| Fact | Eni Plenitude | Octopus Energy |
|---|---|---|
| Unit rate | €0.172 | €0.168 |
| Standing charge | €144 | €6 |
| Renewable share | 100% | 100% |
Also worth a look
Powerpeers has standing charge at €0.214 to €0.394, against €144 for Eni Plenitude and €6 for Octopus Energy.
Powerpeers reviewHow they place
| Ranking | Eni Plenitude | Octopus Energy |
|---|---|---|
| Energy suppliers | 5 of 96 | 1 of 96 |
| Green energy suppliers | 5 of 56 | 1 of 56 |
| Energy tariffs without exit fees | 3 of 19 | 1 of 19 |
Every fact side by side
| Fact | Eni Plenitude | Octopus Energy |
|---|---|---|
| Tariff types | Fixed, Variable | Fixed, Variable, GreenCovers more |
| Fuels | Electricity, Gas | Electricity, Gas |
| Legal entity | Eni Plenitude SpA Societa Benefit | Octopus Energy Italia Srl |
| Headquarters | Italy | Italy |
| Founded | 2022 | Not confirmed |
| Support channels | Phone, Chat, Help centre | Email, Phone, Chat, Help centreCovers more |
Broadband
| Fact | Eni Plenitude | Octopus Energy |
|---|---|---|
| Technology | Fttp, Fttc | Not confirmed |
| Top download speed (Mbps) | 2,500 | Not confirmed |
| Upload speed (Mbps) | 1,000 | Not confirmed |
| Price from | €19.90 | Not confirmed |
| Reference plan prices | Fibra existing energy customers: 19.90 EUR/month, 2500 Mbps, no term; Fibra plus Energy new customers: 19.90 EUR/month, 2500 Mbps, no term; Fibra only new customers: 25.90 EUR/month, 2500 Mbps, no term | Not confirmed |
| Contract length | 1 | Not confirmed |
| Setup fee | €39 | Not confirmed |
| Price after contract | €25.90 | Not confirmed |
| Exit fee terms | No penalties; 25.90 EUR deactivation fee within 24 months, 16.90 EUR with energy discount | Not confirmed |
| Router | Modem Wi-Fi 7 included | Not confirmed |
| Address checker | https://eniplenitude.com/offerta/casa/fibra-internet | Not confirmed |
Where each stands against the rest
| Fact | Eni Plenitude | Octopus Energy | Median |
|---|---|---|---|
| Exit fee | €0at the median | €0at the median | €0 |
| Unit rate | €0.172above the median | €0.168below the median | €0.17 |
| Standing charge | €144highest quarter | €6below the median | €14.99 |
| Renewable share | 100%at the median | 100%at the median | 100% |
| Customers | 11,000,000highest quarter | Not confirmed | 850,000 |
Median across 58 listed providers.
Pros and cons
Eni Plenitude
Pros
- The €0 exit fee ranks 1 of 29 brands, the clearest advantage in the set here.
- Renewable share of 100% on a certificate basis, so the green claim names how it is certified.
- Electricity and gas on the same account, electricity and gas, with fixed terms of 24 months if you want rate certainty.
Cons
- The €144 standing charge is the weak point, ranking 16 of 16 and sitting above the €14.98 market median.
- The fibre line carries a €39 setup fee, where the median setup fee across the plans listed here is €0.
- Broadband-only new customers pay €25.90 rather than the €19.90 rate offered with an energy contract.
Octopus Energy
Pros
- Exit fee is €0, so a fixed term can be left early without a penalty
- Green tariff is backed by 100% renewable supply on a certificates basis
- Tariff choice covers fixed, variable and green on both electricity and gas
Cons
- Fixed terms run 12 months and then need a renewal decision, since no separate renewal price is set out
- Unit rate of €0.17 sits mid-field, so it does not undercut every rival on usage
- Tariff list covers fixed, variable and green only, with no time of use or electric vehicle option as listed
Who each suits
Eni Plenitude
Who it suits
- Italian households that want electricity and gas on a single fixed deal with a €0 exit fee.
- Existing energy customers adding fibre, who get the €19.90 entry rate rather than €25.90.
- People who want a support mix of phone, chat and help centre with a phone line in it.
Who should look elsewhere
- Buyers after hourly or dynamic pricing rather than a fixed rate: Powerpeers lists dynamic, fixed and variable.
- Shoppers set on prepay or a separate green choice: Electricity Ratings lists fixed, ev and time of use.
- Households looking for time-of-use or electric vehicle tariffs: Endesa lists fixed, time of use and ev.
Octopus Energy
Who it suits
- Italian households in IT who want to switch supplier without paying to leave
- Households that want a green tariff on a certificates basis at 100% renewable supply
- People who prefer fixed pricing but want an exit fee of €0 behind it
Who should look elsewhere
- Households wanting an electric vehicle or time of use tariff, since fixed, variable and green does not list them
- Anyone outside IT, where the supplier does not operate
- Households chasing the lowest unit rate, where €0.17 is only mid-field
Country by country
| Country | Eni Plenitude | Octopus Energy |
|---|---|---|
| France | Yes | No |
| Greece | Yes | No |
| Portugal | Yes | No |
| Slovenia | Yes | No |
| Spain | Yes | No |
| Italy | Yes | Yes |
Questions about each
Eni Plenitude
Is there an exit fee on the energy contract?+
No penalty charge applies to the energy tariff, where the exit fee is €0. Broadband is treated separately: the fibre line carries a deactivation charge if you cancel within the initial period, and that charge is reduced when you hold an energy contract with the same supplier. Leaving the energy side is simple; leaving the fibre side is not free.
What do I actually pay on the energy side?+
The unit rate is €0.17 and the standing charge is €144, and the standing charge applies whatever the household uses. Low-usage homes feel that fixed part harder, so the same tariff can look different from home to home. Both fuels, electricity and gas, sit on the same contract.
Octopus Energy
What does Octopus Energy cost to leave?+
Leaving costs €0. That is the figure that separates this supplier from many fixed term offers, where an early exit can be chargeable. A household that expects its circumstances to change can hold the tariff without budgeting a penalty for the move.
Which markets does Octopus Energy serve?+
Octopus Energy sells in IT only, so the tariffs and support described here apply there. Anyone outside that market will not find these offers, and would need a supplier operating in their own country.
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