PV yield assessment for your photovoltaic system
Bankable yield forecasts as a basis for financing, valuation, and further development of your PV project.
Bankable yield assessments from greentech as a reliable basis for decision-making
The basis for your project
We prepare well-founded, bankable yield assessments for photovoltaic systems as a reliable basis for financing, valuation, and investment decisions.
We consider all site-specific, design-specific, and component-specific influencing factors and simulate the expected yields with state-of-the-art software and realistic assumptions.
Thanks to our many years of experience in project development, construction, and operational management of photovoltaic systems, we assess yield opportunities and risks realistically, practically, and comprehensibly.
This way, you receive an objective, transparent, and market-accepted assessment that combines technical quality with economic security.
When is a PV yield assessment useful?
For the financing of your PV project
The yield forecast of a PV system enables an accurate prediction of the profitability of a future PV project and serves as a calculation basis for project financing for investors or banks.
For the purchase or sale of a PV system
The PV yield assessment serves as an argument in purchase or sale negotiations. It technically and objectively justifies the offered purchase or sale price. It is not uncommon for parties to commission their own yield assessments, the results and evaluations of which are then discussed and debated during the course of negotiations.
To convince potential investors
The PV yield assessment offers potential investors transparency regarding the expected revenues of the photovoltaic system. This allows them to directly calculate whether an investment in the project is worthwhile.
For the analysis of technical changes (repowering & revamping)
In the event of technical changes to the system, the yield assessment provides insights into whether the modification results in significant improvements or deteriorations in terms of yield. For example, replacing old inverters with new models may lead to significant yield increases due to the higher efficiencies of the new components.
For comparing different project designs
In connection with the system design, different design focuses also result in different yield prospects. Do you already have a design? We would be happy to check whether the yield can be further optimized through specific changes to the system design. If you have several design proposals, we will gladly determine the proposal with the highest yield prospects or advise you on what else you should consider in your decision.
For an independent assessment of yield potential
As Owner’s Engineer, we prepare well-founded analyses and evaluations of external yield assessments for PV systems. This provides you, as a project developer or operator, with an independent view of the potential yield of your PV system.
What distinguishes our PV yield assessments?
Assessments accepted by banks and investors
As experienced specialists in PV and BESS, we are established in the market. With a steadily growing portfolio, we are among the largest independent operators of solar power plants in Europe. The quality and reliability of our yield forecasts are valued equally by financial institutions and investors, as well as by technical consultants and customers.
Reliable yield forecasts through practical experience and modern simulations
Our analyses and evaluations are based on our technical know-how and our extensive experience from operational management practice. After a holistic consideration of all parameters and sources important for the yield assessment, we do not sugarcoat anything, but offer a realistic, objective, and useful evaluation of the expected yields for all parties involved.
Independent evaluation for maximum transparency
As Owner’s Engineer, we prepare our own assessments and review externally produced documents. This provides you with an independent, comprehensible evaluation, allows you to compare different designs, and make well-founded decisions. In recent years, we have prepared or expertly reviewed over 100 PV assessments.
Holistic consulting approach and continuous support
We are happy to continue supporting you even after the planning and start-up phase of your system: with our holistic service, we assist you during the construction phase and later, as operators, ensure the best possible performance of your system throughout its entire lifecycle. This way, you have a long-term partner by your side who not only knows your system but also understands it.
Our Approach: How we prepare your yield assessment and what benefits it offers
Data & site analysis
We examine relevant irradiation data, historical weather data, and site-specific conditions to create a reliable basis for the forecast.
- Weather data from various sources
- Terrain model and terrain data
- Shading objects
Here you will find further information on site analysis
Review of system design and components
The actual design of the PV system, including module layout, inverters, battery storage, and cabling, is methodically reviewed and prepared for simulation.
- Transfer of the layout plan to the simulation software
- Mapping of the electrical wiring
- Review and adjustment of all system-relevant planning data
Simulation & realistic yield forecast
Using state-of-the-art software (e.g., PVsyst), we conduct simulation-based calculations, considering loss factors, shading, and system-specific characteristics.
- Simulation of System Operation
- Review for Consistency and Optimization Potential
Evaluation and documentation in the assessment
We prepare a transparent, bankable PV yield assessment with clear and comprehensible reasoning, accepted by investors, banks, and technical consultants.
- objectively prepared
- comprehensively and detailedly collected
- professionally analyzed and evaluated
- coherently reasoned
Your long-term benefit
The assessment serves not only for financing purposes but can also be used as a basis for decision-making for sales, repowering measures, optimization, or operational planning.
- Development / Project Financing
- Sale / Purchase
- Repowering / Revamping
- further optimization measures
Our service portfolio at a glance
We would be happy to advise you and stand by your side as an experienced partner with extensive expertise.
Site-Specific Irradiation Analysis
Analysis of technical design including shading analysis
PVsyst simulation
Evaluation of loss factors and KPIs
Bankable yield assessment and presentation of results
Why work with greentech?
Years of experience
Employees active in 6 European countries
Projects in the development pipeline
Ground-mounted PV systems built
in technical consulting
in operational management
Your specialists for
yield assessments
Viola Hoffmann
Commercial Head of Engineering
Johannes Liebich
Head of Engineering & Technical Advisory
Joern Carstensen
Chief Technical Officer (CTO)
In his role, Jörn Carstensen combines the management of all technical areas of the greentech group. As CTO, he is responsible for plant construction, engineering services and technical management. The aim is to create uniform standards and processes across all technical areas at greentech, thereby ensuring company-wide synergies, high quality and the greatest possible transparency.
Jörn Carstensen joined greentech in 2014 as Business Development Manager. In addition to developing various European markets, he built up the Engineering and Technical Advisory division. From 2006 to 2014, he worked for the Conergy Group in various international corporate and business development positions. Prior to that, he worked for a consulting unit of Accenture and supported utility companies in strategic and organisational issues. Jörn Carstensen holds a degree in Industrial Engineering with a specialisation in Energy and Environmental Management from the Universities of Flensburg and Southampton.
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FAQ: PV yield assessment
Frequently asked questions about the purpose, content, data basis, and tools of PV yield assessments
What is a PV yield assessment and what is its purpose?
A PV yield assessment provides a well-founded forecast of the expected energy yields of a PV system. It serves as a basis for decision-making for financing, sales, investor evaluation, or technical optimizations.
Who prepares the assessment and how reliable is it?
greentech prepares bankable, practical assessments for photovoltaic systems based on many years of experience in construction and operational management. The results are recognized by financial institutions, investors, and technical consultants.
What data and factors are considered?
We consider site data, irradiation, weather statistics, terrain profile, module and system layout, component parameters, DC/AC design, shading, loss factors, and the electrical wiring of the system.
What software and tools are used?
We use state-of-the-art simulation tools like PVsyst, combined with precise 3D models of the terrain and system design, to create realistic and reliable yield forecasts.
Can a PV yield assessment also review existing systems?
Yes, as Owner’s Engineer, we analyse and evaluate both internal and external yield assessments. This provides you with an independent evaluation of the yield potential and optimization opportunities.
What benefits does the client receive from a yield assessment?
The client receives a transparent, objective, and market-accepted document that provides realistic assessments, facilitates decision-making processes, and creates long-term planning security.
What does it mean to be "bankable" and "whitelisted"?
greentech offers detailed PV yield assessments that consider all relevant aspects and provide objective results. As a professional provider of yield assessments for photovoltaic systems, we are on the whitelist of many financing banks and technical consultants. This enables project developers and investors to process their projects more quickly, as it is crucial for project financing that the yield assessment is accepted by the financing party or independently validated through an external review.
How long does it take to receive a PV yield assessment?
Once we have received the relevant project documents such as .pan files, topography, layout, and component data sheets, it usually takes 1 to 2 weeks to prepare and complete the PV yield assessment, including the report.
When is a yield assessment Useful?
- For Project Financing
- For Sales or Investor Evaluation
- For Technical Changes, Repowering, or Optimizations
- To Compare Different Design Variants for the Financial Model
- For an Independent Assessment of Existing Assessments
What is the difference between a simulation and a yield assessment?
A simulation is the export (PDF) from the PVsyst simulation software we use, including all results from the simulation. A complete yield assessment considers these results but goes beyond them by explaining the results in detail, as well as analysing the selection of components, the project layout, and the DC/AC ratio. All parameters are carefully checked and examined for optimization potential. The results of this analysis are summarised in a comprehensive report.
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Engineering & Technical Advisory
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