First of all the price depends on the power of the solar system, which is based on your electricity consumption, not the area of the house. There are several important factors that should be taken into account when installing a PV station like the angle of the roof, the roof area available for installing solar panels, shading from nearby trees, etc… The area of your house doesn’t matter. The same picture is with a solar water heater installation, but in this case instead of electricity consumption we use natural gas consumption rate to calculate the solar water heater size needed. Learn how to choose a solar water heater here:  If you are planning to install a solar system feels free to send us your consumption data for free calculation.