Germany
Practical starting points for your home-energy project, with links to the organisations responsible for local requirements.
Planning a solar installation in Germany
Bring roof condition, electricity demand and connection work into the same plan before comparing offers.
Solar registration in Germany: who does what?
Avoid an installation handover that leaves you unsure about the paperwork.
Evaluating a home battery in Germany
Test the extra value of storage against the solar installation you would have bought anyway.
Heat-pump support in Germany: where to start
Build a funding checklist around the current KfW guidance before making financial commitments.
Could a dynamic electricity tariff suit your home?
A Germany-focused guide to comparing flexibility, price exposure and the less visible costs.
Understand the essentials
Browse all guides →Solar panels, a battery, or both?
Start with your daily routine. The right combination depends as much on when you use electricity as on how much you use.
From sunlight to your socket
A simple tour of a home solar installation: panels, inverter, your home and the electricity grid.
Is your roof ready for solar?
Direction matters, but so do shade, roof condition and the practicalities of putting an installation in place.
Start with the project, then the paperwork
For rooftop solar, begin with the roof and household-use plan, compare complete installation offers, then assign the grid and registration tasks. For a battery, compare its additional benefit against the solar-only option. Keep any planned car or heat pump in a separate future scenario.
Bring the right numbers to each decision
The solar installer needs a consumption profile and roof information. A heating designer needs the building’s heat demand and the rooms you want to improve. A tariff comparison needs the times you buy electricity, not simply annual kWh. The guides below help you assemble the relevant information.
Keep the organisations distinct
Your installer, electricity supplier, grid operator and funding provider have different roles. Record a named contact and completion document for each task. Use the registration guide for the Marktstammdatenregister, the KfW guide for heating support and the tariff guide when considering a change of electricity contract.