eins review
Updated September 30, 2026 · TariffCue Editorial Team · Facts checked September 30, 2026
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Our verdict
eins suits households in Germany that want renewable electricity and a long fixed term without giving up a variable option. It serves 400,000 customers and backs its renewable claim with 100% on a certificates basis, and you can reach it on phone, email and help centre.
Key facts
- Best for
- German households wanting renewable electricity on a fixed or variable term.
- Fixed terms
- 12, 24 (Source, checked September 30, 2026)
- Renewable share
- 100% (Source, checked September 30, 2026)
- Renewable basis
- Certificates (Source, checked September 30, 2026)
- Customers
- 400,000 (Source, checked September 30, 2026)
- Legal entity
- eins energie in sachsen GmbH & Co. KG (Source, checked September 30, 2026)
- Headquarters
- Germany (Source, checked September 30, 2026)
- Founded
- 1990 (Source, checked September 30, 2026)
- Support channels
- Phone, Email, Help-centre (Source, checked September 30, 2026)
- Tariff types
- Fixed, Variable
- Fuels
- Electricity, Gas
- Official website
- eins.de
Pros and cons
Pros
- Renewable power is 100%, backed by certificates rather than a bare claim.
- Both fixed and variable tariffs are available, so you can switch between price fixing and following the market.
- Fixed terms run to 12 and 24, which gives a real length of commitment rather than a short window.
- Support covers phone, email and help centre, so you are not limited to one way of getting help.
- The operator has been trading since 1990 and serves 400,000 households.
Cons
- Supply covers electricity and gas in Germany only, so a household outside its home market cannot use it.
- Tariffs are limited to fixed and variable, with no time of use, electric vehicle or prepay option as offered by electricity-ratings.
- The renewable claim rests on certificates, not on power the supplier generates itself.
Who it suits
- Households in Germany that want renewable electricity without giving up a variable option.
- People who want a long fixed period and value reaching a person on the phone as well as by email.
- Existing electricity and gas customers who want both fuels from the same supplier.
Who should look elsewhere
- Households outside Germany, since its supply covers electricity and gas in its home market only.
- Drivers who want electric vehicle or time of use tariffs, which are absent from fixed and variable and present at electricity-ratings.
- Anyone wanting a dynamic tariff, which Powerpeers lists among dynamic, fixed and variable but eins does not.
What it does well
The first thing to check is what the renewable claim rests on. eins states that 100% of its power is renewable, and the basis for that claim is certificates. That distinction matters. Certificates are a way of matching the power you buy to renewable generation, but it is not the same as running your own turbines. If you want your money tied to physical generation, this is the detail to look at first. The range of tariffs is narrow and easy to read. You get fixed and variable options, which means you can either hold a price for a known period or follow the market month to month. The fixed side comes in terms of 12 and 24, so you can lock in for the longest period offered rather than a short window if your household plans ahead. Scale is the other thing worth weighing. eins serves 400,000 customers, which puts it well beyond the small providers that appear and disappear. For a household thinking about locking a fixed term, the size of the operator matters as much as the rate, because you are committing money for a period that can outlast any introductory offer.
Who runs it
The supplier behind the brand is eins energie in sachsen GmbH & Co. KG, registered in Germany. It has been trading since 1990, so this is a long established operator rather than a recent entry to the retail market. Getting help is straightforward. Support runs on phone, email and help centre, which covers the routes most households expect: phone, email and a help centre. There is no live chat listed, so if you prefer typing into an agent window rather than sending an email and waiting, that is a gap worth knowing about before you sign up. Because the business is based and registered in Germany, its tariffs are built for the German market and its rules. The terms you accept, including your fixed period of 12 and 24 months, sit inside that market rather than any other.
How eins compares
Frequently asked questions
Is eins electricity fully renewable?+
eins states that 100% of the power it supplies is renewable, so the whole supply is covered rather than a small portion. The basis is certificates, which means the claim is supported by certificates rather than by generation the supplier owns. Buyers who want to know exactly how the claim is made should read that detail first.
How long is the contract?+
You can take a fixed tariff of 12 and 24 months, which gives you either a shorter or a longer commitment to choose from. A longer fixed term locks your rate for longer, which suits a settled household, while a shorter one keeps more room to change. If price certainty matters less, a variable tariff avoids a fixed period altogether.
Can I choose a variable tariff instead of a fixed one?+
Yes. eins offers fixed and variable tariffs, so both a fixed and a variable route are open. A fixed tariff holds your rate for the term, while a variable one moves with the market and suits households willing to accept that movement. Pick the one that matches how much you value certainty over flexibility.
Does eins supply gas as well as electricity?+
Yes. Its fuels cover electricity and gas, so electricity and gas can be taken from the same supplier. For households already on both, that can mean one bill relationship and one point of contact rather than two. Support reaches you on phone, email and help centre, and gas questions go through the same routes as electricity.
How do I get in touch with eins?+
Support runs on phone, email and help centre, which means phone, email and a help centre. Phone suits anything urgent such as a meter fault or a move, while email and the help centre work well for documents and account questions. No live chat is listed, so if typing to an agent matters to you, plan for email or the phone.
Which regions does eins serve?+
eins is registered in Germany and its tariffs are built for that market, so supply applies inside Germany. Its fuels cover electricity and gas, both of which are offered for the German market. A household outside Germany cannot use these tariffs, whatever the renewable percentage or the term length looks like on paper.
How big is eins as a supplier?+
It serves 400,000 customers and has been trading since 1990. That is a long operating history and a sizeable customer base for a regional supplier. For anyone weighing a fixed term of 12 and 24 months, an established operator is usually the safer counterparty than a new entrant offering a sharper opening rate.
Sources
- eins.de/privatkunden/strom checked September 30, 2026
Backs: Fixed terms, Fuels, Renewable basis, Renewable share, Support channels, Tariff types
“Erstvertragslaufzeit: 12 Monate, Erstvertragslaufzeit: 24 Monate”
- eins.de/ueber-eins/impressum checked September 30, 2026
Backs: Headquarters, Legal entity
“Johannisstrasse 1 09111 Chemnitz”
- eins.de/ueber-eins/wir-sind-eins/zahlen-daten-fakten checked September 30, 2026
Backs: Customers, Founded
“400.000 Privat- und Geschaeftskunden”
Compiled from 3 source pages, checked September 30, 2026. We did not open an account.