What is expected life span of the solar panels? What will they cost you to replace them when they go bad?
40 years, I will be dead by then, they get cheaper every year, Solar city & the other solar companies offer lease programs, they monitor, clean & repair if needed your system since they technically own it over 20 years, by leasing you make payments to them that are less then what would have gone to the utility company. Electricity rates go up every year, I think mine goes 8% annually. so why not get free clean energy from the sun?
My math...save 40k over the next 20 years in electricity payments to the utility co & save another 30K over 8 years driving a electric car, not like the other electric cars like a Nissan leaf, we are talking about a luxury sedan with incredible performance, technology( check out the 17' touchscreen, its a giant IPAD that controls all aspects of the car). Tesla model S recently was awarded Motor Trend Car of the year
unanimously (first time ever) Consumer Reports gave it a score of 99 out of 100...highest rating ever!!!
Tesla is coming out with the model X next year, its an all wheel drive SUV, in about 3 years the will have a more affordable car, think of the current model S as a BMW 7 series & this newer one along the lines of a BMW 3 series...around 35K-40K.