Look at it this way:
Your school gets free solar panels, saves a dollar or two on the energy bills, maybe a teacher gets a dollar or two raise, and maybe a shovel or two of coal doesn't get burned. Everybody's happy, kumbaya.
OR: Your school gets offered free solar panels, the government gets in the middle and throws a bunch of BS at the offerer of said panels, which cost more money than they had to spend on the free system, so the offer goes away and they go to a school a town or two away. Now your neighboring school is singing, but no dollar raise for your teacher, and another shovelful of coal goes through the power plant. So sad.
I just think you're looking for a solution when there isn't a problem. Sometimes, it's OK to let things be.