systems has dropped below grid parity in many parts of the world [22]. This means that,
averaged during the lifetime of the PV system, PV generated electricity is cheaper than
electricity from the grid.
We believe that the installation of decentralized PV systems will be the big force
behind the solar revolution in the coming years. It will change the energy landscape much
faster than most people think, which is justified in Figure 2.6 (b). As more and more
people become aware of these facts, it is more likely that the growth will be further
enhanced than be slowed down.