Questions & answers FAQ

Together with our expert team, we offer our customers turnkey solutions, including financing. In the past 11 years, we have gained experience in the construction of solar power plants, renewable energies and energy efficiency.

In order to make an offer, we need information about the property owner (name and surname, address, contact details); the location for the installation of the solar power plant (estimated location of the plant, meter number and billing capacity of the site, annual consumption, expected new electricity consumers – e.g. roof and the building itself where the solar power plant is to be installed (indicative roof area; orientation, pitch and roof type – e.g. single roof, gable roof; roof restrictions such as chimney, window, antenna; roofing type and age, picture of the roof with location and of the existing boiler house, annual energy consumption expressed in monetary terms or quantified for the heat pump.

The expected lifetime is 30 years and the warranty period covering the individual key components of the solar power plant is up to 25 years. We also offer a 1-year guarantee on our work.

Just like it has been before, and we do all the paperwork to get the power plant connected.

We offer you the possibility to obtain a non-refundable financial incentive of up to 20% of the eligible investment costs, but not more than € 180.00 per 1kVA of installed rated capacity of the solar power plant (EcoFund public call). If you don’t want to use your own financial resources to build a power plant, we can help you get a loan through the ECO-FUND, at an interest rate of 1.3% + EURIBOR for a period of up to 10 years, without any investment of your own (also for companies). Why pay already compulsory monthly electricity charges to the distribution company when you can repay the credit at almost the same rate as you pay your electricity bill. And you have your own investment on your roof, which will be paid off after a maximum of 10 years, after which time you will have electricity almost for free, which means that combined with a heat pump, your house will become almost self-sufficient.

The standard module dimensions are 1.7 m x 1 m. The total weight is approximately 18 kg. The required roof pitch area for a 1kWp solar power plant without obstructions (chimneys, skylights, etc.) is 6 m2.

If in the near future you will have additional consumers (heat pumps, etc.), you can increase the size of the solar power plant.

Currently, all the surplus energy is fed into the grid at no cost (free of charge). At the end of the billing period (once a year – in January), an accounting is made of electricity generated and consumed. In   the event of a shortfall,   the   difference between the amount of electricity consumed and the electricity grid fee for that energy will be charged at a flat rate. If you have a suitable solar power plant built for self-supply, the only fixed monthly cost on your electricity bill is the connected power and the CHP and RES allowances. The total cost in the case of a 7kW connection (20A fuse) is around €15/month incl. VAT.

In the case of larger solar power plants installed on commercial buildings according to the PX3 scheme, the energy generated is partly consumed by you and the surplus is sold to the electricity grid.

We offer maintenance of the solar power plant during and after the warranty period. However, we have constant control over the operation of all the solar power plants we have built via the control platform.

Self-powered solar power plants have circuit breakers built into the panels to ensure that the voltage is safe for firefighting when the plant is switched off, i.e. no higher than 50V DC (direct current) or 120V AC (alternating current). At such voltage, firefighters can extinguish the fire according to standard procedure. The power plant is built in compliance with the IEC 60947 and VDE 2100-712 standards.

Solar PV does not generally require major construction work. The supporting substructure is mounted on the roof. A diverter is installed in some sheltered location (under a canopy or in a building) to be protected from severe weather. It is connected to your building’s electrical box, where most of the fuses for other consumers in the building are located. In the case of an old electricity meter, it needs to be replaced with a modern, bi-directional meter. The meter replacement is organised by us. If you would like to remotely control the operation of the power plant from your computer or smartphone, you will need to connect an internet socket to the location of the power plant or add a wireless communication device to the power plant.