Solar system – Bremen
Legal basis
- EEG 2023 – feed-in tariff and funding (federal level)
- Solarspitzengesetz – requirement for a smart meter and control unit for new systems from 7 kWp (since 25.02.2025); without a control unit, the grid operator permanently reduces feed-in to 60 % of installed capacity
- Bremisches Solargesetz (BremSolarG), in force since 24.05.2023 – solar requirement for new buildings and roof refurbishments
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Bremen solar requirement
| Feature | Rule |
|---|---|
| Roof refurbishments | Required since 01.07.2024 – for major refurbishment (at least 80 % of the roof area affected); installation within 2 Jahren of completion of the refurbishment |
| New buildings | Required since 01.07.2025 |
| Minimum capacity | ≥50 % of roof area |
| Legal basis | BremSolarG |
| Size exemption | Automatically exempt for roof areas below 50 m² (new build) or below 25 m² (existing buildings) |
| Further exemptions | Listed building protection, unsuitable structural integrity, north-facing orientation, shading, unreasonable economic burden |
Official requirements
| Step | Requirement | Threshold |
|---|---|---|
| 1 | Register with grid operator | all systems |
| 2 | Register in MaStR | all systems |
| 3 | Smart meter + control unit | mandatory installation from 7 kWp; voluntary for 2–7 kWp, otherwise 60 % feed-in reduction |
| 4 | Tax office | from >30 kWp |
Planning permission: not required for roof-mounted systems. Exceptions: listed building protection, ground-mounted systems.
Grid operator
| Region | Grid operator |
|---|---|
| Bremen + Bremerhaven | swb Netze (Stadtwerke Bremen) |
Contact: swb.de | Processing time: 4–8 Wochen
Funding in Bremen
“Photovoltaik nach Plan” – Bremer Aufbaubank (BAB)
| Feature | Details |
|---|---|
| Type | Low-interest loan (no grant) |
| Maximum loan amount | 50.000 € – can cover up to 100 % of eligible costs |
| Term | up to 10 Jahre |
| Eligible | PV system, battery storage, inverter, charging infrastructure, necessary building measures |
| Eligible applicants | Private owners of owner-occupied or rented residential buildings in Bremen |
| Application | Bremer Aufbaubank (BAB), before work begins |
swb – grant for PV systems (since 15.10.2025)
| Feature | Details |
|---|---|
| Type | Voucher grant |
| Amount | 500 € when purchasing and installing a PV system; 750 € with an additional wallbox |
| Eligible | Owners of one- and two-family houses in Bremen, Bremerhaven, Stuhr, Weyhe and Thedinghausen |
| Validity | Limited in time, continuing into 2026 |
| How to apply | Voucher code “SONNE” via swb.de/solar-komfort or at swb customer centres; payment after installation and payment |
| Programme | Type | Available |
|---|---|---|
| BAB “Photovoltaik nach Plan” | Loan | Yes |
| swb grant | Grant (500–750 €) | Yes, limited in time |
| KfW 270 | Loan (federal level) | Yes |
| EEG feed-in tariff | Remuneration | Yes |
EEG feed-in tariff (Q2/Q3 2026)
| System size | Partial feed-in | Full feed-in |
|---|---|---|
| up to 10 kWp | 7,78 ct/kWh | 12,34 ct/kWh |
| 10–40 kWp | 6,73 ct/kWh | 10,35 ct/kWh |
| 40–100 kWp | 5,50 ct/kWh | 10,35 ct/kWh |
Valid: 01.02.2026 – 31.07.2026 | From 01.08.2026, reduction of 1 % (six-monthly reduction under § 49 EEG 2023). Systems already commissioned retain their tariff for 20 Jahre.
Installation steps in Bremen
- Check the roof – the solar requirement applies to new buildings (from 01.07.2025) and refurbishments (from 01.07.2024); check the size exemption below 50 m²/25 m²
- Secure the swb grant (voucher code “SONNE”) and check the BAB “Photovoltaik nach Plan” loan – both before placing an order
- Appoint a certified specialist company
- Register with swb Netze – allow 4–8 Wochen
- Register with MaStR and have the smart meter installed
- Commissioning + acceptance record
Grid operator note: In Bremen, swb Netze is the sole distribution network operator for the urban area. Bremerhaven may differ – check by postcode search: solar.red/netzbetreiber
How to submit the applications
1. Feed-in application to the grid operator (swb Netze)
- Portal: swb.de → section “Einspeiser / Solaranlage anmelden”
- Complete the form: location, planned kWp capacity, type of feed-in
- Wait for approval – 4 Wochen deadline (up to 30 kWp); automatically approved if there is no response after 1 month
- Tip: The installer often handles registration – ask when requesting a quote
2. MaStR registration (Marktstammdatenregister)
- Portal: marktstammdatenregister.de
- Deadline: within 1 month of commissioning
- Required: system capacity (kWp), installation date, site postcode
- Tip: Many installers also complete the MaStR registration – clarify this in the quote
3. swb grant (“SONNE” voucher)
- Portal: swb.de/solar-komfort → retrieve the “SONNE” voucher code, or visit an swb customer centre
- Payment: after installation and payment for the system
4. “Photovoltaik nach Plan” – Bremer Aufbaubank (BAB)
Submit the application before placing the order.
- Contact: Bremer Aufbaubank (BAB) – bab-bremen.de
- Documents: cost estimate, system size, proof of ownership
- Loan approved → then appoint the installer
5. KfW 270 (federal level)
- Apply through your bank.
- Portal: kfw.de/270
- Submit the application before placing the order