Hi,
I will share with you all my experience with (Sun Exchange) company at Cape Town, South Africa. It is not an advertisement to them, just sharing an experience.
Investment Wise:
They have a flexible sharing sell, no need to buy a panel consists of 72 or 144 cells, you can purchase 1 cell only. This is a very nice option. This release you from considerable amount you are not prepared to. But no one told me that transfer fees counts.
Another positive point, you can paid back by bitcoin and not South African Rand and transfer it to your wallet.
Till now, they launched more than 40 projects and each one lasts for 20 years with monthly payment (all details are shown in their website : thesunexchange.com).
Charity Wise:
You can donate partially or totally to charity or community which is gratitude showing.
Care Wise:
It is a win-win deal, you can earn money and find yourself part of controlling gases emission to the air.
Thanks.