Most energy lost happens during the conversion from energy harvested from the nature to electricity. For example, solar PV systems convert solar energy into electricity then use an inverter to convert electricity from direct current to alternating current, and then supply the generated electricity to the electric grid. The most established solar PV technologies are silicon-based systems, and more recently film modules is developed, this is consist of non-silicon semiconductor material, although thin films have a lower efficiency than silicon modules, but still it has very high efficiencies of up to 40% and in return the overall price for the panels required to produce equal amount of energy is lower, hence more energy can be harvested with the same amount of money used and this is anyway to increase the efficiency of energy
Most energy lost happens during the conversion from energy harvested from the nature to electricity. For example, solar PV systems convert solar energy into electricity then use an inverter to convert electricity from direct current to alternating current, and then supply the generated electricity to the electric grid. The most established solar PV technologies are silicon-based systems, and more recently film modules is developed, this is consist of non-silicon semiconductor material, although thin films have a lower efficiency than silicon modules, but still it has very high efficiencies of up to 40% and in return the overall price for the panels required to produce equal amount of energy is lower, hence more energy can be harvested with the same amount of money used and this is anyway to increase the efficiency of energy