
Planning, installation and commissioning of photovoltaic systems and energy storage systems for private and commercial customers.

SonnStrom GmbH
Erlangen · DENew on Amplifa
About SonnStrom
SonnStrom GmbH is a family-run photovoltaic company based in the Erlangen area. The company plans, installs and commissions custom photovoltaic systems with or without battery storage – from the initial consultation and tailored planning to the electrical installation, all from a single source. The team consists of trained installers and experienced electricians who commission the systems on site and instruct customers in their functions. Customers include private homeowners, commercial businesses and public buildings such as a fire station in Erlangen. Even demanding projects, such as two systems on one roof or east-west orientations, are implemented. In coordination with roofers, it is ensured that roof warranties are preserved during renovations. According to the company, more than 100 photovoltaic systems have been installed in the Nuremberg, Erlangen, Fürth and Herzogenaurach region. Partnerships exist, among others, with Fronius, Kostal, Alpha ESS, Luxor Solar and Bauer Solar.
- Site
- Erlangen
- Processes
- Planning of photovoltaic systems, Installation of photovoltaic systems (module installation, roof mounting), Electrical installation, Commissioning of PV systems and energy storage systems, Installation of energy storage systems, Personal consultation, Tailored planning, Installation and commissioning of photovoltaic systems
- Certificates
- Alpha ESS License Certificate, Fronius System Partner Certificate, Solar Consultant Certificate
- Industries
- Private customers (single-family homes), Commercial businesses, Public buildings, Public buildings (e.g. fire station)
- 01
Personal consultation
- 02
Solar power check and profitability analysis
- 03
Tailored planning
- 04
Installation of modules and roof mounting structures
- 05
Electrical installation
- 06
Installation of the energy storage system
- 07
Commissioning and customer training
Location

Erlangen
DEHeadquarters and base of installation activities in the Nuremberg, Fürth and Herzogenaurach area
Reference Systems




Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Planning of photovoltaic systemsEngineering | – | – | – | – | – |
| Installation of photovoltaic systems (module installation, roof mounting)Assembly | – | – | – | – | – |
| Electrical installationAssembly | – | – | – | – | – |
| Commissioning of PV systems and energy storage systemsAssembly | – | – | – | – | – |
| Installation of energy storage systemsAssembly | – | – | – | – | – |
Additional services
Certifications and Quality
The company holds several certifications, including the Alpha ESS license certificate, the Fronius system partner certificate and a solar consultant certificate. According to the website, these stand for certified quality and technical expertise in planning, implementation and service.
| Evidence | Erlangen |
|---|---|
| Alpha ESS License Certificate | |
| Fronius System Partner Certificate | |
| Solar Consultant Certificate |