GASAG review
Updated September 30, 2026 · TariffCue Editorial Team · Facts checked September 30, 2026
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Our verdict
GASAG covers electricity and gas in Berlin and Brandenburg, with fixed, variable, dynamic and green tariffs and a green option stated at 100% renewable from its own generation. The dynamic tariff needs no smart meter, which suits readers who want hourly pricing without an installation.
Key facts
- Best for
- Homes in Berlin and Brandenburg wanting 100% renewable power and a dynamic tariff with no smart meter.
- Fixed terms
- 12, 24 (Source, checked September 30, 2026)
- Renewable share
- 100% (Source, checked September 30, 2026)
- Renewable basis
- Own generation (Source, checked September 30, 2026)
- Smart meter required
- No (Source, checked September 30, 2026)
- Regions served
- Berlin, Brandenburg (Source, checked September 30, 2026)
- Customers
- 700,000 (Source, checked September 30, 2026)
- Markets
- DE (Source, checked September 30, 2026)
- Legal entity
- GASAG AG (Source, checked September 30, 2026)
- Headquarters
- Germany (Source, checked September 30, 2026)
- Support channels
- Email, Phone, Help-centre (Source, checked September 30, 2026)
- Tariff types
- Fixed, Variable, Dynamic, Green
- Fuels
- Electricity, Gas
- Official website
- gasag.de
Pros and cons
Pros
- The green tariff is stated at 100% renewable, on a basis of own generation rather than certificates, which is the detail eco-minded readers check.
- The dynamic tariff carries no smart meter requirement, so hourly pricing can begin without an installation appointment at the property.
- The range covers fixed, variable and dynamic, the same set of types Powerpeers lists through dynamic, fixed and variable.
- Support runs on email, phone and help centre, so a household can reach the supplier by phone, by email or through the help centre.
- 700,000 customers sit behind GASAG AG, a supplier with the scale to hold a fixed term of 12 and 24 months.
Cons
- Supply is limited to DE, with a stated service area of Berlin and Brandenburg, so readers outside those regions cannot contract.
- Electric vehicle and time-of-use plans are not among its fixed, variable and dynamic, where Electricity Ratings lists fixed, ev and time of use.
- Fixed terms run 12 and 24 months, so readers who may move inside that window should weigh the variable and dynamic options instead.
- Support runs on email, phone and help centre, with live chat not among the channels a reader can pick.
Who it suits
- Households in Berlin and Brandenburg who want a single supplier for electricity and gas, since GASAG covers electricity and gas.
- Readers who want renewable electricity at 100%, drawn from own generation rather than certificates.
- Households without a smart meter who still want hourly pricing, since no meter is required for the dynamic tariff.
Who should look elsewhere
- EV drivers and time-of-use shoppers, who should read Electricity Ratings, which lists fixed, ev and time of use against GASAG's fixed, variable and dynamic.
- Anyone after a fixed, time-of-use or electric vehicle structure: Endesa centres on fixed, time of use and ev.
- Readers who want the same types from a different supplier, since Powerpeers lists dynamic, fixed and variable.
Core features
Renewable supply is the headline: the green tariff is stated at 100% renewable, and that percentage is the figure a reader who cares about where the power comes from will look at before anything else. The next fact worth knowing is the dynamic tariff, which carries no smart meter requirement. That matters more than it sounds, because a supplier that gates hourly pricing behind a meter rollout puts a step between signing the contract and billing starting. GASAG does not, so a property without a meter is not shut out of the most volatile part of the range. The trade-off sits elsewhere: hourly pricing follows the market rather than sitting still. Scale is the quieter point. 700,000 customers sit behind these plans, which reads as a regional operation rather than a small local supplier, and that base size is worth holding in mind when a fixed term is being weighed.
The company behind it
The contract is with GASAG AG, a company registered in Germany. Support runs on email, phone and help centre, so there is an email route, a phone line and a help centre. That is a familiar arrangement for a household inside the service area: a named legal entity where the contract begins, several ways to reach it on the other side. Live chat is not among those channels, so a reader who expects to type a question and get an answer straight away will use the email route or the help centre, with phone cover for anything urgent around a bill or a switch. The entity and the country of registration are also what a reader checks when a contract, a billing query or a complaint needs a counterparty rather than a brand name on a comparison table.
How GASAG compares
ENTEGA is also on the energy suppliers list and sells in the same markets.
Where GASAG is available
- Available
- Germany
Countries from the brand (Source, checked September 30, 2026)
Frequently asked questions
What tariffs does GASAG offer?+
GASAG's range spans fixed, variable and dynamic. Fixed rates come with terms of 12 and 24 months, and the green tariff is stated at 100% renewable. That gives a reader both a price-locked option and a market-linked one from the same supplier, with a renewable option on top.
Where does GASAG supply energy?+
GASAG operates in Germany, and its stated service area is Berlin and Brandenburg. Electricity and gas are covered, so a household inside those regions can take a single supplier for the pair. A reader elsewhere in the country would need a supplier that works in their own area.
How renewable is the green electricity?+
The green tariff is stated at 100% renewable. A reader who wants to know where the power comes from can hold that figure against the rest of the range, and pair it with the fixed or dynamic option if renewable supply matters more to them than price stability.
Does the dynamic tariff need a smart meter?+
No smart meter is required for GASAG's dynamic tariff, so nothing has to be installed at the property before pricing starts. The dynamic plan sits inside a range of fixed, variable and dynamic tariffs, and it runs in Germany, so a household without a meter can still reach hourly pricing rather than being pushed onto a fixed plan.
How do I reach GASAG customer service?+
Support runs on email, phone and help centre, which covers an email route, a phone line and a help centre. Live chat is not among those channels, so a reader who prefers typing in real time will use the email route or the help centre. Phone and email both work for billing and meter queries.
Which company would I be contracting with?+
The contract is with GASAG AG, registered in Germany. That matters before signing, because it identifies the party taking the payment and handling a complaint rather than a brand name. It is the starting point if a tariff needs challenging or a switch needs requesting.
How long would I be tied to a fixed GASAG tariff?+
Fixed terms run 12 and 24 months, so the commitment is longer than a rolling arrangement and worth checking against how long a reader plans to stay. Anyone who may move inside that window will find the variable and dynamic tariffs easier to leave.
How big is GASAG?+
700,000 customers sit behind the brand, which reads as a regional operation rather than a small local supplier. For a reader weighing a fixed term, that base size is worth holding in mind, though it says nothing about the rate that would be offered on a particular property.
What else sits on an energy bill?+
Across the plans listed on this site, unit rates run €0.05 to €6.29 and standing charges run €0.09 to €144, so the standing part of a bill can matter as much as the price per unit. GASAG's own figures depend on the plan chosen.
Sources
- gasag.de checked September 30, 2026
Backs: Customers, Fuels
“700.000 Kundinnen und Kunden”
- gasag.de/impressum checked September 30, 2026
Backs: Headquarters, Legal entity, Markets
- gasag.de/kundenservice checked September 30, 2026
Backs: Support channels
- gasag.de/strom checked September 30, 2026
Backs: Fixed terms, Regions served, Renewable basis, Renewable share, Tariff types
“Als erfahrener Energieversorger in Berlin und Brandenburg”
- gasag.de/strom/dynamischer-stromtarif checked September 30, 2026
Backs: Smart meter required
Compiled from 5 source pages, checked September 30, 2026. We did not open an account.
Related by the facts
GASAG
Homes in Berlin and Brandenburg wanting 100% renewable power and a dynamic tariff with no smart meter.