I don't understand - what's it to you? You're not the one spending the money. He can do what he pleases with his money.

If you read TFA you will see that cutting consumption is not necessary. His goal is not to go totally solar, but to "feel good" and supplement his bill. I see no reason why he should cut consumption. The system is working as designed and should deliver its payoff in the allotted time. His job requires high energy consumption and he now has a multi-fuel power source (grid plus his solar).

When I'm not on the road I work in my home office, so I walk from wherever in my house to the home office. Otherwise I'm on an airplane to my job site.

Thanks for pointing that out. You are correct in your statement, I didn't see the parent post.

Your link goes to a Seagate Free Agent.