Originally Posted by woj

cap costs? interest rates are near zero and most companies are holding gazillions of $$ in cash itching to invest it wisely...

in business settings it makes more sense to use solar as the load is constant and usually only needed during the daylight hours (i.e. store is open 8am-8pm and uses pretty much constant level of electricity), so in a way you achieve 100% efficiency...

in residential settings (without battery storage) you achieve pretty poor efficiency as the electricity use varies greatly throughout the day...

businesses also have economies of scale, don't pay sales commissions, are able to negotiate prices better, pay lower interest rates, are able to use accounting tricks better, etc...

so comparing Walmart to residential setup is like comparing apples to oranges...

Originally Posted by Bladewire

In California Rochard gets a tax credit for 30% of the cost of the solar package he bought as well as a $2,000 a year solar tax credit as well as selling his surplus energy to the electric company.

Rochard also qualifies for a lot of new state programs he might not even know about including reduced electricity rates. There are 211 different rebate/discount programs here in California as well as federal grants to help pay for his solar install loan.

Go Solar California