Planning and installation of photovoltaic systems, CHP units, small wind power and electrical installations
Werner Genzwürker Elektrotechnik GmbH
Osterburken-SchlierstadtNew on Amplifa
About us
Werner Genzwürker Elektrotechnik GmbH is an electrical engineering company based in Osterburken-Schlierstadt in the Neckar-Odenwald district, specialising in photovoltaics. Founded in 1988, the company plans and installs rooftop photovoltaic systems as well as ground-mounted systems and tracking photovoltaic trackers, and also implements combined heat and power (CHP) units, small wind turbines and electrical installations. Only stainless steel and aluminium are used for the substructure; the systems use TÜV-tested, IEC-certified cadmium-free silicon modules, halogen-free TÜV-tested solar cables from Lapp, and inverters from SMA. Since 2003, the 30-strong team has installed more than 1,000 photovoltaic systems within a 200-kilometre radius, primarily on the roofs of agricultural, commercial and residential buildings. The service portfolio includes system maintenance with test reports, chemical-free module cleaning with deionised water, 24-hour remote monitoring via the SMA Sunny Portal, and formalities such as grid connection requests and registration with the Federal Network Agency. At its own company building, the company demonstrates decentralised energy supply with a 360 kW rooftop system, a small wind turbine and a CHP unit.
- Site
- Osterburken-Schlierstadt
- Processes
- Planning and installation of photovoltaic systems (rooftop), Installation of ground-mounted systems and tracking photovoltaic trackers, Installation of combined heat and power units (CHP), Installation of small wind turbines, Electrical installation, Maintenance and testing of PV systems (measurement of open-circuit/MPP voltage, short-circuit/MPP, Chemical-free cleaning of solar modules (HiFlo Carbon-Tec deionised water system), Roof renovation (re-roofing with tiles, sandwich panels, trapezoidal sheet metal, fibre cement
- Materials
- Stainless steel, Aluminium, Silicon (solar modules, TÜV-tested, IEC-certified, cadmium-free), TÜV-tested Lapp solar cable (halogen-free), Silicon (solar modules), Copper, TÜV-tested Lapp solar cable
- Certificates
- ISO 9001
- Founded
- 1988
- Employees
- 30
- Industries
- Photovoltaics/Renewable Energies, Electrical Engineering, Decentralised Energy Supply, Agriculture, Commercial, Private Households
- 01
Consultation and site assessment
- 02
Planning, yield forecast and profitability calculation
- 03
Installation of the system
- 04
Formalities (grid connection request, completion notification to the grid
- 05
Commissioning
- 06
Remote monitoring, maintenance, cleaning and service
Materials & Components
Stainless steel
Used exclusively for the substructure of the photovoltaic systems.
Aluminium
Used exclusively for the substructure of the photovoltaic systems.
Silicon (solar modules)
TÜV-tested and IEC-certified silicon-based modules free of cadmium.
Copper
Conductor material in electrical installations and cabling.
TÜV-tested Lapp solar cable
Halogen-free, ozone-resistant cable with high resistance to weathering, temperature and UV.
Location
Osterburken-Schlierstadt
DEHeadquarters and company building
- Combined heat and power unit (own supply)
- Small wind turbine (own supply)
- 360 kW rooftop PV system
- 16 tracking trackers and ground-mounted systems
Systems & References
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Planning and installation of photovoltaic systems (rooftop)Installation | – | – | – | – | Stainless steel, Aluminium, Silicon (solar modules) |
| Installation of ground-mounted systems and tracking photovoltaic trackersInstallation | – | – | – | – | Stainless steel, Aluminium |
| Installation of combined heat and power units (CHP)Installation | – | – | – | – | – |
| Installation of small wind turbinesInstallation | – | – | – | – | – |
| Electrical installationInstallation | – | – | – | – | Copper (cables) |
| Maintenance and testing of PV systems (measurement of open-circuit/MPP voltage, short-circuit/MPPTesting | – | – | – | – | – |
| Chemical-free cleaning of solar modules (HiFlo Carbon-Tec deionised water system)Surface | – | – | – | – | – |
| Roof renovation (re-roofing with tiles, sandwich panels, trapezoidal sheet metal, fibre cementInstallation | – | – | – | – | Tiles, Sandwich panels, Trapezoidal sheet metal, Fibre cement sheets |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Combined heat and power unit (own supply) | – | – | – | – | Osterburken-Schlierstadt |
| Small wind turbine (own supply) | – | – | – | – | Osterburken-Schlierstadt |
| SMA inverters (world market leader, used on reference systems, e.g. SMA 6000TL, 8000TL, SMC | SMA 6000TL / 8000TL / SMC 8000TL | – | – | – | – |
| Kaco PVI 4500I inverter | Kaco PVI 4500I | 4 | – | – | Neckar-Odenwald district (barn roof reference system) |
| Sunways inverter | Sunways | – | – | – | Neckar-Odenwald district (school building reference system) |
Additional services
Reference customers
Quality
Under the maintenance contract, modules, substructure, inverters, DC cables and metering systems are inspected; measurements of open-circuit/MPP voltage and short-circuit/MPP current are documented in a test report. Remote monitoring via the SMA Sunny Portal is carried out daily; fault messages are processed within two working days.
| Evidence | Osterburken-Schlierstadt |
|---|---|
| ISO 9001 |
History
- 1988
Company founded by Werner Genzwürker
- 2003
Start of photovoltaic activities; more than 1,000 systems installed since then
- 2007
Construction begins on the new company building at the entrance to Schlierstadt
- 2010
Entire workforce moves into the new company building
- 2016
Death of the company founder; company taken over by Dr.-Ing. Martin Schreiber