Solar energy
Photovoltaics with a system.
Photovoltaics is an essential component of sustainable energy supply – and at ESG it is more than just a business area. We support open-space systems throughout Germany and ensure that your PV system delivers long-term performance through structured service, precise testing, and reliable maintenance.
Whether it’s module inspection, string measurement or grid connection – our technicians know what’s important. With clear processes, short response times and extensive technical know-how, we secure revenues, minimize downtimes and ensure long-term operational reliability.
Behind every facility there is a strong team.
Our services rely not only on technology, but on people who know what they are doing.
Our services
Inspection of the substructure & modules
We inspect supporting structures and PV modules for damage, contamination or malfunctions.
Testing of cabling according to VDE 0105-100
Professional visual and functional testing of all electrical connections in accordance with applicable standards.
Electrical repeat tests
Measurements to ensure the protective functions and operational safety of your system.
Strand measurements including protocol
We determine the performance data of individual strands and document everything in a comprehensible manner.
Maintenance of generator junction boxes
Securing contacts, terminal connections, fuses and safety devices.
Inverter & grid connection maintenance
Technical inspection and cleaning of the central energy conversion and feed-in points.
24/7 monitoring of your system
Round-the-clock monitoring for maximum transparency and rapid response in the event of a disruption.
