Technical Due Diligence & Special Inspections
Our TÜV and VdS-trained experts draw their experience not only from our own wide-ranging operational management portfolio, but also from the thousands of solar plants we have inspected and evaluated.
Our TÜV and VdS trained experts draw their experience not only from our own wide-ranging operational management portfolio, but the thousands of solar plants we have inspected and evaluated.
We support you when it comes to evaluating the condition of your system
When does a technical due diligence & special inspection make sense?
A technical solar due diligence report by greentech will provide a practical view of the technical status of your plant. This knowledge enables an objective evaluation of the quality of service being provided by your business associates.
In addition to checking the plant on site, we also do a thorough review of all technical documentation. Furthermore, we are able to conduct further analyses and simulations, so that you can consider all relevant information when thinking about the purchase of a solar power plant.
As part of our due diligence inspection, our TÜV and VdS-certified PV experts provide an independent view of your photovoltaic plant. In the event of damage or warranties that are due to expire, their expert assessment will support you in making well-founded claims and ensuring your rights.
A due diligence solar inspection provides you with all the technical information that is relevant when selling your system. Alongside the examination of the technical documentation, we also offer several visual inspections of the installed components on site, conduct thermographic examinations or analyse the performance of the system in question, on the basis of the monitoring data that is available. This enables you to negotiate the best selling price for your plant.
What makes our technical due diligence & special inspection stand out in the crowd?
An independent view with a focus on quality and performance
Get the independent and unbiased view of a technically experienced PV specialist! We offer you a comprehensive overview of the technical quality of your plant and the potential performance levels.
Checks and inspections conducted by experts in the field
Our experienced technicians and engineers are TÜV and VdS-certified experts. They have already conducted a large number of inspections and assessments of solar systems, in compliance with the relevant legal requirements, norms and standards. Their many years of experience and technical expertise ensure that, wherever problems arise, suitable, practical solutions are found.
Concrete optimisation proposals that can be implemented quickly
You will receive our audit and inspection results, set out clearly and presented comprehensibly. In this way, we can discuss any necessary measures and further recommendations for action and implement them quickly. This way, we contribute to the efficient performance of your system and its long service life.
Discover our full range of services for technical due diligence & special inspections
Inspection of technical documentation
Visual inspection of the documentation for comprehensiveness according to DIN EN 62446 and best practice recommendations
Documentation and presentation of the results, based on the greentech documentation checklist
Comparison with the planning documents
Visual inspection of PV generators, cabling and DC sub-distribution
Visual inspection of the inverter
Visual inspection of the transformer and the transfer station
Visual inspection of other system components
Thermography of the main components (random sample)
Verification of the commissioning documents
Comprehensive report and presentation of results
Deeper analysis options
Performance analysis of historical monitoring data
- e.g. in the context of trial operation or as in-depth analysis at regular intervals
- Evaluation of availability and PR guarantees
- Use of innovative and detailed analysis tools
String measurements according to DIN VDE 0126-23
Thermography of modules by drone
Thermographic examination of other electrical components
Electroluminescence measurement of PV modules
Why work with greentech?
we service | new energy
600 MWp capacity
managed so far (O&M) &
1 GW capacity inspected
Over 60 employees, including
TÜV/VdS certified experts
Experience from 250+ projects
and 12 countries
Expertise Every Step of the Way – Across All Project Phases
greentech is a service company with locations in Hamburg, Leipzig and Milton Keynes in the UK, specializing in the engineering and operational management of photovoltaic systems. With an interdisciplinary team of experienced experts, we provide a full-service operation management concept for PV systems of all sizes, as well as services for planning, quality assurance and yield maximization. We work independently of component manufacturers and general contractors and thus exclusively represent the interests of the plant owners.
With a comprehensive range of services and a current portfolio of more than 600 MWp, we are one of the largest independent service providers worldwide. greentech’s growing customer base includes private plant owners as well as municipal utilities, regional and international energy providers, project developers, insurance companies and investment funds.
Your greentech specialists for technical due diligence
Project Manager, Sales & Business Development
Head of Engineering & Technical Advisory