The total installed power of the solar power plant in a family house depends on:
– usable area of the roof or other surface on which the power plant will be installed,
– leased power of electricity meter (available at HEP),
– planning of annual electricity consumption.
Family houses most often install solar power plants with a power of 4 to 15 kW. Companies usually install from 10 kW to even over 500 kW. The price for each installed 1 kW is on average 700 – 1500 EUR (the final price is defined by the mentioned parameters). Depending on the size of the solar power plant, a full return on investment can be expected in an average of 3 to 7 years.