Updated September 30, 2026 · TariffCue Editorial Team
Eni Plenitude vs Optimum
Eni Plenitude vs Optimum: the differences
| Compare |  Eni Plenitude | Optimum ReviewSee alternativesSee alternatives |
|---|---|---|
| Top download speed (Mbps) | 2,500 | 8,000Higher |
| Price from | €19.90 | $30 |
| 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 | 300 Mbps Internet: $30/mo, 300 Mbps, no contract; 500 Mbps Internet: $40/mo, 500 Mbps, no contract; 8 Gig Fiber Internet: $90/mo, 8000 Mbps, no contract |
| Setup fee | €39 | $150 |
| Exit fee terms | No penalties; 25.90 EUR deactivation fee within 24 months, 16.90 EUR with energy discount | No contracts - cancel without early termination fees |
| Router | Modem Wi-Fi 7 included | Rent up to $14/mo unless you opt out |
| Markets | IT, FR, ES, PT, GR, SI | US |
| Upload speed (Mbps) | 1,000 | Not confirmed |
| Price after contract | €25.90 | Not confirmed |
| Mid-contract price rises | Not confirmed | Price increases after promo period ends |
| Address checker | https://eniplenitude.com/offerta/casa/fibra-internet | Not confirmed |
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Key differences
- Optimum scores higher overall: 9.3 vs 8.8.
- Top download speed (Mbps) is higher at Optimum: 8,000 vs 2,500.
- Founded is lower at Optimum: 1996 vs 2022.
- Eni Plenitude is available in 5 more countries.
- Technology: only Eni Plenitude offers Fttc.
- Technology: only Optimum offers Cable.
- Markets: only Eni Plenitude offers IT, FR, ES.
- Markets: only Optimum offers US.
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.
Optimum
Optimum suits US households that want a fast line with no contract attached, and its top plan reaches 8,000 Mbps. What you weigh is the joining cost: a setup fee of $150 and a router that is rented unless you opt out.
Score breakdown
| Area | Eni Plenitude | Optimum |
|---|---|---|
| Cost | 8.8HigherUnit rate of €0.17 sits near the €0.17 market median, while the €144 standing charge sits well above it. | 8.6Entry price of $30 looks fair, but Price increases after promo period ends and a $150 setup fee weigh on the total. |
| Offer | 9.3Fixed and variable energy tariffs covering electricity and gas, plus fibre broadband entry €19.90 with 2,500 Mbps download. | 9.8HigherSpeeds of 8,000 Mbps on terms of 1 month, with both cable and fibre available. |
| Trust | 8.0Founded in 2022 as Eni Plenitude SpA Societa Benefit in IT, with support on phone, chat and help centre. | 9.8HigherA US operator trading since 1996 under Optimum Communications, Inc., with US as its market. |
Where each is licensed and available
| Country | Eni Plenitude | Optimum |
|---|---|---|
| Headquarters | Italy | United States |
Additional countries for Eni Plenitude: 6. Additional countries for Optimum: 1.
Sources behind this comparison
Eni Plenitude
- eniplenitude.com: 14 facts, checked September 30, 2026
- corporate.eniplenitude.com: 2 facts, checked September 30, 2026
Optimum
- highspeedinternet.com: 5 facts, checked September 30, 2026
- en.wikipedia.org: 4 facts, checked September 30, 2026
- allconnect.com: 3 facts, checked September 30, 2026
- broadbandnow.com: 1 fact, checked September 30, 2026
How they place
| Ranking | Eni Plenitude | Optimum |
|---|---|---|
| Full fibre providers | 7 of 107 | 23 of 107 |
| Broadband without a long contract | 5 of 46 | 15 of 46 |
Every fact side by side
| Fact | Eni Plenitude | Optimum |
|---|---|---|
| Technology | Fttp, Fttc | Cable, Fttp |
| Contract length | 1 | 1 |
| Legal entity | Eni Plenitude SpA Societa Benefit | Optimum Communications, Inc. |
| Headquarters | Italy | United States |
| Founded | 2022 | 1996Lower |
| Support channels | Phone, Chat, Help centre | Not confirmed |
Where each stands against the rest
| Fact | Eni Plenitude | Optimum | Median |
|---|---|---|---|
| Top download speed (Mbps) | 2,500above the median | 8,000highest quarter | 1,000 |
| Upload speed (Mbps) | 1,000above the median | Not confirmed | 900 |
| Price after contract | €25.90lowest quarter | Not confirmed | €36.50 |
Median across 116 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.
Optimum
Pros
- No contract: No contracts - cancel without early termination fees, so moving or switching does not cost an early termination charge.
- Top-end speed: 8,000 Mbps, well above Astound at 5,000 Mbps.
- Choice of line type: cable and fttp, so cable and fibre both come from one provider.
Cons
- Setup fee of $150 ranks 86 out of 86 on the site's setup fee table, the expensive end of that list.
- Rent up to $14/mo unless you opt out adds a monthly equipment cost unless you opt out and bring your own kit.
- Renewal risk: Price increases after promo period ends, so the figure you pay after the promo period can sit above the $30 entry price.
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.
Optimum
Who it suits
- Households that want a very fast line but no long commitment, and would otherwise settle for Astound at 5,000 Mbps.
- People likely to move or switch provider often, since No contracts - cancel without early termination fees keeps leaving cheap.
- US households that want one provider for both cable and fibre lines: cable and fttp.
Who should look elsewhere
- Buyers outside US, who can compare EarthLink instead for fttp, 5G and satellite and a wider choice of ways to connect.
- Fibre-only buyers, who may prefer Abissnet running fttp across its footprint.
- Shoppers who want no joining bill, since the $150 setup fee ranks 86 out of 86 and Astound's terms are worth checking first.
Country by country
| Country | Eni Plenitude | Optimum |
|---|---|---|
| France | Yes | No |
| Greece | Yes | No |
| Italy | Yes | No |
| Portugal | Yes | No |
| Slovenia | Yes | No |
| Spain | Yes | No |
| United States | No | 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.
Optimum
What does Optimum cost to get started?+
The entry price is $30 a month, the cheapest plan on the list. Installation is a separate setup fee of $150. Budget for both in the first month, because the setup cost does not appear in the monthly price and it sits at the expensive end of the site's setup fee table.
Do I have to sign a contract with Optimum?+
Contract terms apply: No contracts - cancel without early termination fees. Plan terms are listed as 1 month, so the commitment is measured in months rather than years. That makes Optimum a straightforward option if you expect to move home, since leaving does not trigger an early termination charge.
Other options to compare
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