As photovoltaic cell technology improves, the walls and roofs of buildings will be able to generate enough electricity for their own needs, plus a possible surplus for the grid.
As photovoltaic cell technology improves, the walls and roofs of buildings will be able to generate enough electricity for their own needs, plus a possible surplus for the grid.
随着光付技术的发展，墙体和屋面能够产生足够电能满足需要，而且多余部分还可直接并入电网。