Comment Re:Okay, this is pretty simple IMO! (Score 3, Interesting) 435
You're looking at it wrongly. I recently had solar power installed because - long term - it pays off.
Let's say your numbers are correct. $30k to install. $150/month saved. That's similar to my situation in the UK.
Your payback period is about 17 years (although potentially longer if you had to take out a loan to pay for them).
Most solar panels are guaranteed for 25 years (or, rather, their operating performance won't drop by more than a certain percentage per year).
So, for the remaining 8 years, you're earning $150 per month - that's $14k. That's not a terrible ROI.
However! What if there's an energy crisis? All of a sudden, you're saving $300 per month. Or, depending on where you live, you can sell your excess electricity back into the grid for a profit.
Worse case scenario, the cost of electricity plummets and you're left with an overprices UPS on your roof.
I say go for it!