Feasibility analysis for PV roof systems

We analyse your roof area(s) and provide you with a sound assessment of the economic viability of a PV system for your roof. Our analysis is based on a proven design, the use of site-specific irradiation data and the derivation of the resulting electricity yields.

We look at your roof surface(s) from a technical point of view and also take the individual conditions on site into account. To do this, we analyse the roof condition and load-bearing capacity, space conditions and restrictions due to pipelines or ventilation shafts as well as external shading, for example from trees or other buildings. This may also result in the conclusion that a roof surface is economically not suitable for the installation of a PV system.

As experts in operational management and PV system design, we provide you with a well-founded forecast of the expected yields of your potential rooftop system. We develop an individual plant layout for your roof based on a proven system design and an irradiation simulation based on local data. In the next step, we calculate how much of the PV electricity produced is consumed directly and how much excess power can be fed into the grid.

As a full-service PV provider, we benefit from a wealth of experience with regard to the costs incurred in the construction and operation of PV systems. We use realistic benchmarks for our calculations, combined with the specific system size, the components installed and other specific installation costs. For the amortisation, it is also relevant whether you use the produced electricity yourself or feed it into the public grid. There are various operations models possible, which we are considering: from feed-in-tariffs, self-consumption, power purchase agreements or a combination of these

The Levelised Cost of Electricity (LCOE) indicates the production costs of PV electricity and is a good parameter for assessing the profitability of a solar installation. It consists of the life-cycle costs (acquisition costs, operating and repair costs), which are set in relation to the total energy production over the lifetime of the system. If the total electricity production costs of a planned system with complete self-consumption are lower than the estimated electricity purchase price, the business case will be positive. This analysis is an integral part of our feasibility study and therefore shows the profitability of a solar plant.

Storage solutions offer the option of not feeding the electricity produced directly into the grid, but of storing it and being able to use it later. By using it yourself, you need to purchase less electricity from external sources. In times of rising electricity costs, this solution can pay for itself in a short time. We calculate when you will reach this point.

We offer the additional consideration of storage solutions individually on request.