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UtilitiesStep-by-step

Setting up electricity and gas when you move into a flat in Germany

How energy supply works when you move in, why you start in the basic supply (Grundversorgung), how to read your meters, compare and switch suppliers, understand monthly instalments and the annual bill, and who supplies Berlin by default.

Checked 5 Oct 2026
Applies to
Anyone renting or buying a flat or house in Germany where electricity, and possibly gas, is not included in the rent. Usually not needed for a room in a shared flat or a furnished flat with an all-inclusive rent, or for heating that your landlord supplies centrally and bills through the service charges.
Effort
Low effort
Time needed
About 15 minutes on move-in day for the meters, plus 30–60 minutes to compare and sign a contract
Cost
Depends on your tariff and consumption. Switching supplier and cancelling the basic supply are free of charge (2026).
When
Ideally sign a contract before you move in. If you do not, you are supplied automatically from day one and can switch afterwards.
On this page
  1. Overview
  2. Before you start
  3. Documents you need
  4. Step by step
  5. Basic supply, special contracts and substitute supply
  6. Contract rules that protect you (2026)
  7. What changed for prices in 2026
  8. Smart meters and dynamic tariffs
  9. If something goes wrong
  10. Watch out
  11. Common mistakes
  12. Tips
  13. Frequently asked questions
  14. Official links
  15. In your plan
  16. Sources
  17. Related guides

In Germany you usually choose and pay your own electricity supplier. Gas is relevant if your flat has its own gas boiler (Gasetagenheizung) or a gas stove. If the building has central heating, the landlord normally buys the heating energy and bills you through the service charges (Nebenkosten), so you do not need a gas contract.

You never move into a flat without power. As soon as you use electricity or gas without a contract, you are automatically supplied by the local basic supplier (Grundversorger) under the basic supply (Grundversorgung). This is safe and flexible, but usually more expensive than a regular contract with the same or another supplier, so most people switch once they have settled in.

In Berlin, the basic supplier for electricity is Vattenfall and for gas GASAG. The electricity grid and meters are run by Stromnetz Berlin.

Before you start

  • The address and move-in date of your new home
  • Access to the electricity meter (and the gas meter, if the flat has its own gas boiler or stove)
  • A bank account for the monthly instalments (see the bank account guide)

Documents you need

  • Rental contract

    Shows what the rent covers (for example heating and hot water) and what you must arrange yourself.

    required
  • Meter number and meter reading on your move-in day

    Written in the handover protocol and photographed. The meter number is printed on the meter.

    required
  • Market location ID (Marktlokations-ID), if available

    An identifier for your supply point, printed on energy bills. The Bundesnetzagentur calls it the most reliable way for a new supplier to identify your meter; if you do not have it yet, the meter number is enough.

    optional
  • IBAN for the direct debit

    required

Step by step

  1. Step 1: Check what your rent already covers

    Look at your rental contract and the list of service charges:

    • Heating and hot water. If they are part of the service charges (Heizkosten, Warmwasser), you do not need your own gas contract for them.
    • Gas boiler or gas stove in the flat. You need your own gas supply and will have a gas meter in or near the flat.
    • Electricity. Almost always your own contract. In shared flats (WG) and furnished flats, it is often included in an all-in rent, so check.
  2. Step 2: Read the meters on move-in day

    This is the single most important step. On the day you get the keys:

    1. Find the electricity meter (often in the basement, the stairwell or a cupboard in the flat) and, if relevant, the gas meter.
    2. Note the meter number (Zählernummer) and the meter reading (Zählerstand), and take a clear photo of each with the date.
    3. Ask the landlord to include both in the handover protocol (Übergabeprotokoll).

    The reading separates your consumption from the previous tenant's. You will need it for your supplier, and the grid operator also asks for readings when people move in or out. In Berlin, Stromnetz Berlin accepts readings through its customer portal.

  3. Step 3: Register with a supplier (or let the basic supply start)

    You have two options.

    Option A: let the basic supply start. Simply use energy. A supply contract with the basic supplier is formed by your use. You should then tell the basic supplier without delay that you have moved in, with your meter number and reading, so that bills go to you. In Berlin, that is Vattenfall for electricity and GASAG for gas. You can leave the basic supply at any time with two weeks' notice.

    Option B: sign a contract before you move in. If you want a particular tariff from day one, sign it before your move-in date. The Bundesnetzagentur points out that supply cannot generally be assigned to a new supplier retroactively once you have moved in (there are limited exceptions for gas). You can also take a cheaper special contract with the basic supplier itself.

    Either way, there is no interruption: the basic supply covers you until the new contract starts.

  4. Step 4: Compare tariffs carefully

    Commercial comparison portals (for example Check24 or Verivox) and suppliers' own websites list tariffs. You need your postcode and an estimate of your annual consumption in kilowatt hours (kWh). If you do not know it, use the portal's estimate for your household size, then adjust it after your first annual bill.

    The Verbraucherzentrale (consumer advice centre) recommends changing the default filters:

    • do not include bonuses in the price, because they usually only apply in the first year;
    • show total annual cost, not "recommended" or "popular" tariffs, and one tariff per supplier;
    • for normal household electricity, choose fixed-price tariffs rather than dynamic ones;
    • avoid tariffs with prepayment (Vorkasse) or a deposit, because you can lose money if the supplier becomes insolvent.

    Your contract partner is the supplier, not the portal, so check the price and terms on the supplier's own website before you sign. Price guarantees often exclude taxes, levies and network charges, which can make up a large part of the price. A contract of about 12 months with a price guarantee keeps you flexible.

  5. Step 5: Sign the new contract and let the new supplier handle the switch

    When you sign, give your address, meter number, previous supplier and, ideally, the market location ID. The new supplier cancels the old contract for you and arranges the switch with the grid operator. Cancelling and switching are free for households.

    Since 6 June 2025, the technical switch for electricity is completed within 24 hours and is possible on any working day. Your contract dates still depend on the notice period of your old contract.

    If you signed online or by phone, you have a 14-day right of withdrawal (Widerruf) for distance contracts.

  6. Step 6: Set up the monthly instalment and keep your bills

    You pay a fixed monthly instalment (Abschlag) based on expected consumption: roughly (annual kWh × unit price + annual standing charge) divided by the number of instalments. Once a year you receive a statement (Jahresabrechnung) based on a meter reading. It shows whether you paid too much (a credit, Guthaben) or too little (a back-payment, Nachzahlung).

    • The supplier must send the bill no later than six weeks after the end of the billing period, and the final bill no later than six weeks after the contract ends.
    • A credit must be set off against the next instalment or paid out within two weeks.
    • If your instalment seems too high or too low, ask the supplier to adjust it. Raising it voluntarily avoids a large back-payment if you use a lot of electricity, for example when working from home.
  7. Step 7: Keep an eye on price changes

    Your supplier must inform you of a price change at least one month before it takes effect, explaining the reason and scope. If prices go up or the terms change, you may cancel without notice, effective on the date the change takes effect, at no cost. This is the moment to compare again.

Basic supply, special contracts and substitute supply

  • Basic supply (Grundversorgung). The basic supplier is the company with the most household customers in the local grid area, often the municipal utility. You get into it automatically, can leave with two weeks' notice, and it is usually more expensive than special contracts.
  • Special contract (Sondervertrag). Any other contract, from the basic supplier or a competitor. Usually cheaper, but with a minimum term.
  • Substitute supply (Ersatzversorgung). A temporary safety net if your energy use cannot be assigned to a contract, for example after a supplier goes bankrupt. It lasts up to three months, is usually more expensive than the basic supply, and its prices can change on the 1st and 15th of each month. Afterwards you move into the basic supply unless you sign a new contract.

Contract rules that protect you (2026)

  • Initial term: at most 24 months.
  • After the initial term: a contract can only be extended for an indefinite period, and you can then cancel at any time with at most one month's notice.
  • Form: cancelling in text form is enough, for example by letter, email or SMS. Keep proof that you sent it.
  • Moving house: you may cancel with six weeks' notice to your moving date. The supplier can prevent this by offering, within two weeks, to supply you at your new address on the same terms, if it supplies there. Give your new address when you cancel.
  • Price increases: at least one month's notice and a right to cancel without notice.

What changed for prices in 2026

Two federal measures affect household bills in 2026, according to the Bundesnetzagentur:

  • The gas storage levy (Gasspeicherumlage) is no longer charged on gas bills from 2026; it is funded from the federal budget instead. The last rate was 0.289 cents per kWh, and suppliers must pass the saving on.
  • A federal subsidy of €6.5 billion reduces transmission grid charges for electricity in 2026.

Actual prices still vary widely between suppliers and regions, so compare with your own postcode and consumption.

Smart meters and dynamic tariffs

Since 1 January 2025, every electricity supplier must offer a dynamic tariff to customers who have a smart meter (intelligentes Messsystem). With a dynamic tariff, the unit price follows the wholesale market and can change every 15 minutes. It can pay off if you can shift large loads such as an electric car or a heat pump; for ordinary households the Verbraucherzentrale points out that the full price risk lies with you.

According to the Verbraucherzentrale, since 1 January 2025 you can ask for a smart meter and it must be installed within four months; the annual charge for a typical household is €40 (€50 with a heat pump or wallbox), as checked in October 2026.

If something goes wrong

  • Power cut. Contact the grid operator, not your supplier. In Berlin, Stromnetz Berlin runs a 24-hour fault service and publishes current outages on its website.
  • Billing dispute or unjustified instalment increase. Complain to the supplier in writing and ask for the calculation. If that does not help, you can use the complaint and conciliation route that the Bundesnetzagentur's consumer service explains.
  • Payment problems. Contact the supplier early to agree on instalments. The Bundesnetzagentur publishes a guide on what to do if a disconnection (Sperre) is threatened.

Watch out

Do not skip the meter reading on move-in day. Without it, you may be billed for the previous tenant's consumption.

Avoid tariffs that require payment in advance or a deposit. If the supplier becomes insolvent, the money can be lost.

Bonuses usually apply only in the first year. A tariff that looks cheapest with the bonus can be expensive afterwards.

Do not let a doorstep or phone salesperson switch your contract on the spot. Ask for the offer in writing and compare it first. For contracts concluded by phone, online or at your door, you have 14 days to withdraw.

Common mistakes

  • Assuming the landlord or previous tenant has arranged electricity. In most flats, you must tell a supplier yourself.
  • Staying in the expensive basic supply for years because nothing forces you to switch.
  • Forgetting to cancel or move the contract when you move out. Use your moving notice right (six weeks) and give a final meter reading.
  • Ignoring the annual statement. Check the meter readings on it against your own photos.

Tips

  • Take a photo of the meter every time you read it, and keep all readings in one place.
  • Put a reminder in your calendar a few weeks before your minimum term or price guarantee ends, so you can compare again.
  • If you work from home or use electric heating, set a realistic consumption estimate from the start to avoid a large back-payment.
  • The basic supplier also offers special contracts. Asking for its cheapest special tariff is a quick way to save without changing company.

Frequently asked questions

Editorial answers written by our team, based on the sources below.

Will my power be off when I move in?

No. If there is no contract for the meter, the basic supplier supplies you automatically as soon as you use energy. Tell the basic supplier you have moved in, with your meter reading, or sign a contract with a supplier of your choice.

Who is the basic supplier in Berlin?

Vattenfall for electricity and GASAG for gas. You are free to choose any other supplier that serves your address.

How long does switching take?

For electricity, the technical switch has been completed within 24 hours on working days since June 2025. When the new contract actually starts depends on your old contract: two weeks' notice from the basic supply, or the notice period of your special contract.

Can I cancel my contract when I move?

Yes, with six weeks' notice to your moving date. The supplier can instead offer to continue supplying you at the new address on the same terms, if it supplies there.

Do I need gas if my flat has central heating?

Usually not. Central heating is normally supplied by the landlord and billed through the service charges. You only need your own gas contract if your flat has its own gas boiler or a gas stove.

In your plan

  • Read your meters and arrange electricity

Sources

Written and checked by HomiStart editorial against the official sources below. Next scheduled check: 2 Feb 2027.

  1. Verbraucherzentrale Bundesverband
    Grundversorgung oder Sondervertrag? Verträge bei Strom und Gas (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026

    Basic supply formed by use, notify without delay, two weeks' notice, basic supplier definition, special contracts up to 24 months, substitute supply up to three months.

  2. Verbraucherzentrale Bundesverband
    So finden Sie den passenden Strom- oder Gastarif (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026

    Comparison portal filter advice, contract partner is the supplier, price guarantees with exclusions, 12-month terms.

  3. Verbraucherzentrale Bundesverband
    So klappt der Wechsel zu einem neuen Energieanbieter (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026
  4. Verbraucherzentrale Bundesverband
    Dynamische Stromtarife: Für wen es sich lohnt und worauf Sie achten sollten (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026
  5. BundesnetzagenturOfficial source
    Lieferantenwechsel (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026

    24-hour electricity switch since 6 June 2025, required data, free of charge, no interruption, no retroactive assignment after moving in.

  6. BundesnetzagenturOfficial source
    Kündigung / Widerruf (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026
  7. BundesnetzagenturOfficial source
    Preise und Abschläge (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026

    Instalment calculation, price-change notice, gas storage levy financed from federal budget from 2026, €6.5 billion transmission grid subsidy 2026.

  8. BundesnetzagenturOfficial source
    Verbraucherservice Energie (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026
  9. Bundesministerium der Justiz – Gesetze im InternetOfficial source
    Energiewirtschaftsgesetz (EnWG) § 40c Zeitpunkt und Fälligkeit von Rechnungen (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026
  10. Bundesministerium der Justiz – Gesetze im InternetOfficial source
    Energiewirtschaftsgesetz (EnWG) § 41 Energielieferverträge mit Letztverbrauchern (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026
  11. Bundesministerium der Justiz – Gesetze im InternetOfficial source
    Energiewirtschaftsgesetz (EnWG) § 41b Energielieferverträge mit Haushaltskunden (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026
  12. Vattenfall Europe Sales GmbH
    Grundversorgung (Vattenfall) (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026

    Confirms Vattenfall as basic supplier in Berlin.

  13. GASAG AG
    Grundversorgung Gas (GASAG) (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026

    Confirms GASAG as gas basic supplier in Berlin.

  14. Stromnetz Berlin GmbH
    Stromnetz Berlin (Opens {{site}} in a new tab)
    Accessed 5 Oct 2026

    Grid operator and metering point operator; meter readings on move-in/out; 24-hour fault service.

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