The most common form of solar PV is not the only they are constantly developing new ways to get renewable energy from the sun, but sometimes even with higher incomes.
There are for example, the "artificial leaf" Daniel Nocera, a MIT scientist who created this sheet made from materials which are abundant and low cost. You can split water into hydrogen molecules (H2) and oxygen (O2). A procedure similar to photosynthesis in plants.
This process will be tested within a short period of time in the houses of India. It sinks in water and when it illuminated by the sun,it will produces a reaction capable of breaking the bonds of water molecules. It also produces bubbles of hydrogen and oxygen. Hydrogen is stored and can be used in a fuel cell to generate electricity.
It is also the mechanism of "ionic salts" that is being investigated by the team of Richard Masel and Paul Kenis.
Furthermore, the system will become carbon dioxide (CO2) in carbon monoxide (CO) is the first step in a sequence that would produce hydrocarbon fuels. Although its original post burn CO2 be the same quantity used in the first fuel can therefore be a reuse of CO2, which prevents further generated.