Services

Technical Inspections

Metrological inspections

Defects and faults can be recognised with metrological inspections.

Due diligence review
(technical project review)

Should a PV system or an entire portfolio be taken over? We check the technical aspects right through to the system documentation. We recognise defects and assess technical risks.

Construction progresscontrol

We are at your side during the construction phase and check the progress of the work. In this way, defects and deviations from the contract can be recognised at an early stage and countermeasures can be taken.

Acceptance and commissioning test

Extensive testing is essential to ensure that no faults or defects are overlooked during acceptance and/or commissioning.

We are trained by various manufacturers (e.g. Commeo, ABB, Tesvolt, Varta, Kostal) in the field of storage systems.

Inspection scope PV:

Visual inspection of the construction work in accordance with DIN EN62446
Safety assessment of the system
Inspecting the substructure
String current measurements
Thermographic images
Drone flights
Comparison with the planning documents
Checking the commissioning documentation
Checking the function of the system monitoring
Further test items by arrangement

Inspection scope storage (BESS):

Testing in accordance with DIN EN IEC 62933-2-1
Documentation and commissioning protocols
BESS system status
Effectiveness of protective and switch devices
Implementation of the test cases developed with the customer
Evaluation of the BMS logs

Examination at the end of the warranty period

Hidden defects can be reported and rectifications demanded until the end of the warranty period. We help you to visualise hidden defects and advise you on possible steps to take.

Technical Asset Management (TAM)

In order to obtain an unbiased status report for your system(s), it makes sense to have them inspected by an independent party from time to time.

Expert opinions

We prepare expertises for:

Yield analyses and simulations

We prepare yield analyses and simulations for planned and existing PV systems. We use established software such as PVsyst for simulations. Our reports fulfil the current state of the art and are accepted by the banks. A yield report includes the following points:

Evaluation of site-specific irradiation values
Simulation of system yields
Determination of the performance ratio (PR)
Detailed loss analysis
Evaluation of the results

Damage assessments

Damage assessments are required for insurance companies and legal disputes, among other things. A damage report includes the following points:

Identification, analysis and categorisation of damage
Determining the cause of damage
Quantification of the repair costs
Evaluation of loss of yields or reductions in yields due to damage

Defect assessments

Defect assessments are required, among other things, for warranty and complaint applications and when taking over or assigning a PV system. A defect assessment includes the following points:

Identification, analysis and categorisation of defects
Analysing the effects and risks
Quantification of the removal costs
Determination of possible warranty claims
Recommendations for action

Glare assessment

Glare assessments evaluate the glare effects of planned or already installed photovoltaic systems and the resulting risks for road users (also for air traffic in the case of systems near airports). In addition, glare reports can be used to determine the immission impact of reflections on zones requiring protection, such as residential areas.

Simulation-based determination of the glare effect
Risk assessment for road users (vehicle and air traffic)
Quantitative and qualitative analysis of immissions
Recommendations for action

Self-consumption calculations for industry and commerce

By operating their own PV systems (including electricity storage), commercial and industrial companies can significantly reduce their electricity costs. We determine the profitability of operating PV systems in the context of trade and industry for you.

Evaluation of the underlying load profile
Dimensioning of the PV system (and storage system if applicable)
Determination of the levelised cost of energy
Determination of the self-consumption rate
Determination of cost savings through own electricity consumption

Evaluation of existing expert opinions

We check existing reports for completeness and correctness of content and summarise the results in a separate report.

Drainage assessment

Since the flooding in the Ahr valley (Germany) at the latest, the responsible authorities have become particularly sensitised to the risks of heavy rainfall and flooding. In many regions, the submission of a drainage report is therefore required as part of the authorisation process for photovoltaic systems. This report analyses the precipitation runoff behaviour of the project area in its original state and presents the changes resulting from the construction of the PV plant.

Planning and consulting

Support with all technical project planning steps or complete takeover of the planning.

In particular: Grid connection planning, support during planning/implementation in accordance with the specifications of the grid operator and the local standards.

We look forward to hearing from you