Hi,
I would also add that we are using energy in a less efficient way than we need to - another words, we have much more energy efficient appliances and machines available than many of us use. If we were to use energy efficiently, then we could easily afford a solar PV system to supply our needs. This makes good money sense - as well as protecting our environment - because the payback for selecting energy efficient appliances and then purchasing a solar PV system to supply the resulting needs is short - (usually 5 years or under). After they are paid off, the energy is free! This is a big reason why so many people have been able to afford a solar PV system.
Blessings,
Kelly