Payback - I never factored that in or even thought about that.
I was more concerned about having reliable power and reducing my electricity bill.
The daily 2-hour power cuts were getting out of hand, and I was running my business from my home office, so the tax incentives helped slightly.
The grid is more stable now as new power units became available but a big chunk of middle-class consumers using solar are using way less power now, so the local town councils are having problems balancing their books (town councils re-sells electricity from the national operator).
