Welcome to SONNWINN
Your network of independent experts and project developers in the field of photovoltaics
Technical inspections
- Measurements
- Due diligence
- Construction progress check
- Commissioning inspection
- End of warranty inspection
- Technical Asset Management (TAM)
Assessments
- Yield assessment
- Simulations
- Damage assessment
- Defect assessment
- Glare assessment
- Evaluation of existing assessments
Project development and consulting
- Technical project development
- Engineering (from A to Z)
- Creation of bill of quantities
- Supervision of planning and execution
- Optimisation of existing planning
Technical inspections
- Measurements
- Due diligence
- Construction progress check
- Commissioning inspection
- End of warranty inspection
- Technical Asset Management (TAM)
Assessments
- Yield assessment
- Simulations
- Damage assessment
- Defect assessment
- Glare assessment
- Evaluation of existing assessments
Project development and consulting
- Technical project development
- Engineering (from A to Z)
- Creation of bill of quantities
- Supervision of planning and execution
- Optimisation of existing planning


Extensive expertise
- Do you need an expert opinion?
- Do your solar plant have any defects?
- Do you have any doubts in regards to the power output of your plant?
- Do you want to display defects at the end of the warranty or guarantee period?
- Shall a recurring test be carried out?
- Would you like to add an energy storage to your PV system?
- Do you need an experienced partner in the field of photovoltaics?
Then you’re at the right place. We are a team of independent consultans and experts in the field of photovoltaics. With years of experience and always up-to-date specialist knowledge, we can provide you with competent support. We operate mainly in Germany, but also internationally.