Switching electricity and gas provider: the guide
Short and clear, without jargon. Every topic has its own page. Your question is not here? Write to [email protected].
Switching & process
- Switching provider: steps and timingSwitching electricity provider: how the switch works, what it costs, how long it takes and why your electricity and gas never get cut off.
- Term, notice period, price guaranteeContract term, renewal, notice period, price guarantee and new customer bonus on an electricity contract: what they mean and where to find them.
Cancellation & prices
- Ending default supplyEnding default supply (Grundversorgung): why the tariff is often expensive, which two-week notice period applies and how to move without a gap.
- Special cancellation after a price risePrice rise from your electricity provider? How the special right of cancellation works, how early the provider must tell you and what to do now.
- Understanding your annual billUnderstand your annual electricity and gas bill: what unit rate, standing charge, monthly instalment, back payment and credit mean and what to check.
Meters & documents
- Finding your meter numberFind your meter number for electricity and gas: where it is on the meter and on the annual bill, and how to tell it apart from other numbers.
- Finding your market location IDWhat the market location ID (MaLo-ID) is, where to find the 11-digit number and whether you really need it for switching provider.
- Gas: converting cubic metres to kWhWhy the gas meter shows cubic metres while the bill shows kilowatt hours, and how calorific value and conversion factor link the two.
Special cases
- Electricity and gas when moving homeMoving home and your provider: how to cancel and register electricity and gas, when expensive default supply applies and how to choose a tariff first.
- Switching for parents or relativesSwitching provider for parents or relatives: who signs, what you need and what to watch for with authorisation and data protection.
- Heating electricity: heat pump, storage heaterHeating electricity for heat pumps and storage heaters: how heat pump tariffs and dual-tariff meters work and what to look at when switching.
- Business electricity and gasSwitching business electricity and gas: what is different for businesses than for private customers, from net prices to several meters and load profile.
About us
Do you compare all providers in Germany?
We compare the tariffs of our partner suppliers, including large providers and local utility companies (Stadtwerke), and not the whole market. We are a sales partner of Riora GmbH, through which the contract is concluded.
Who is behind OneFlow?
OneFlow Solution from Extertal in Lippe. We advise across Germany online, by phone or by WhatsApp video, and in the Lippe region we are also happy to visit in person if you wish. All details are in the legal notice (Impressum).
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Start now for freeUpdated on 16 October 2026. General information, not legal advice. We arrange contracts through partner suppliers and receive a commission from the supplier for it. We add nothing to the tariff price.