Energy from the sun, supporting life

A photovoltaic panel installed on the front of every tile accumulates solar power, and each panel is connected to the next by wiring in strings which combine to form a power generation system. The wiring leads to the inverter that transforms the direct current into alternating current.
The meter gathers and measures the electricity produced by the solar power system which feeds into the power grid; the relevant electrical utility company

calculates the user’s actual consumption and then refunds the cost of the surplus power produced by discounting it from his bill; the meter calculates the electricity actually used, showing any excess:
The inverters and the electrical panels to protect and control the system are added and their size decided as appropriate to its power. This type of system is classified in the "integrated" category.