Depending on one’s objective or goal and one’s finances, investing in a solar roof and power walls can be worthwhile. There can be huge out-of-pocket costs at first, but these can be mitigated by federal tax credits which can help tremendously. The investment is usually recuperated in 6 to 10 years and this is the payback period. Since panels have a warranty of 25 years, a good number of years after the system pays for itself, an individual will enjoy free electricity. Moreover, helping secure one’s energy needs as well as helping the environment can sometimes be priceless.