I know in the Philippines they might not have rebates and it might cost more than it would here ( not sure). Most solar panels are 5-8 yrs turn around. Which means during that time frame your energy costs are minimized to the point that it takes 5-8 years of savings until it pays for themselves. Not to mention depending where you are there are TONS of rebates being offered...as long as your not heating your $50,000 pool

I just assumed that most people would be spending near $10,000 on a greenhouse, if not more. Which means if your making money...PLAN FOR THE TOOLS TO GO WITH IT TO BE SUSTAINABLE.

Best part is if you start using rain water and switch to LED's the price drops are tremendous!