Solar energy yield studies

Optimise your solar power conversion efficiency

Optimise your solar power conversion efficiency

What are solar energy yield studies?

Yield studies assess the potential of your solar power plant by studying possible installations for optimal performance and calculating its performance ratio. A study covers parameters such as performance ratio, energy yield value (annual summary as well as details for particular months), and expected energy losses of the system. An independent site visit can provide an evaluation of the overall suitability of the location and the chosen technology.

Why are yield studies important?

Solar power plant yield studies provide stakeholders with an overall view of the project’s energy output and future cash flow. A yield study is one of the crucial documents for all owners/operators, EPCs and financers involved in the project.

What do I need to prepare for a yield study?

You need to provide basic technical parameters (type/model of applied modules and invertors, inclination, type of mounting structures, GPS coordinates) to ensure that the study data is reliable.

TÜV SÜD provides a reliable, transparent and unbiased view of your project’s risks and potential

TÜV SÜD’s experts have longstanding international hands-on experience in yield studies services and implications thereoff. We provide you with a fully independent overview of the solar power plant during the design, construction and operation stages of a project.

Our solar energy yield studies include:

  • Site assessment

    TÜV SÜD experts perform a site visit to assess potential obstacles (trees, mountains, buildings) that can negatively impact plant operation and its future yield.

  • Meteorological data

    We confirm the completeness and adequacy of meteorological and climatic data that are used as inputs to the solar energy yield calculation. We use the most accurate meteorological data sources, whether from ground stations or satellite, and compare with other independent sources available for the location (e.g. Meteoronorm, NASA, SolarGIS).

  • Energy losses

    Our experts provide not just a summary but also a detailed quantification of the volume and types of system losses.

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