Useful Questions
SOLAR ROOFS – I live in a block of flats. Can I install a PV-plant?
Yes. If all the owners agree about this, you can plant a single shared PV-Plant and either use it themselves, or sell their rights to a third party investor.
SOLAR ROOFS - Will I sell all of the electricity I produce or only the excess of it?
Producing and consuming electrical energy are two separate things. You will continue paying for the energy you consume at the price 0,12 €/kWh. But you will be selling the total amount of the energy you produce at the price of 0,55€/kWh, which is more than four times higher than your energy cost per KWh. As an example, if your production worth 250€ and your consumption cost 100 €, The national electrical energy supplier (ΔΕΗ), will deposit directly the exceeding 150€ to your bank account.
SOLAR ROOFS - What are the requirements to join the incentive-project?
There are three requirements:
1.An electrical-energy-consumption-meter registered in your name
2.In case you have a household (not a business), part of your hot-water needs must be covered by other renewable energy sources (ex. solar hot water system).
3.In case you have business (not a household) you must not have get any other subsidy for PV-Plant from any other National or International projects.
SOLAR ROOFS – How much space does it take?
A very rough rule of thumb: these days, you can fit one kilowatt (kWp) of panels on about 9-13 square meters. Essential though is the orientation. Here in the northern hemisphere, southern exposure to the sun is ideal. You can, however, orient panels to the southeast or southwest (±45º) without substantially decreasing performance. Moreover the absence of shadow is required. Things like skylights, chimneys, ducts and roof contours trees and other nearby tall buildings is bad. Simply put, solar panels need sun - specifically between 9 am and 3 pm - in order to achieve optimal performance. The good news is that we find most homes have roofs that are decent for solar, while only a handful of roofs are not good at all. If you've got a brand-new, unshaded roof, however, with clear southern exposure and a flat, simple design, consider yourself among a lucky few who can rightfully brag about how good their roof is for solar.
