Monocrystalline solar panels cost between $1 and $1.50 per watt on average and are usually ... They also only last between 10 to 20 years, which is 10 to 15 years less than PV panels.

California's average cost per watt is currently $2.47 ... It typically takes five to 15 years to break even on solar installation costs. Solar panels pay for themselves faster in states where ...