The Nhimbe Fresh project in Zimbabwe, a grower of berries and vegetables comprising 250 smallholder farmers, raised funds for about $1.4 million worth of solar cells, bought by more than 1,905 individuals across 98 countries, with most of them transacting in bitcoin.

Sun Exchange allows any investor to own solar power assets, which are typically panels on roofs, which then earn back a yield over a 20-year lease period. The yield in South African rand (ZAR) is then converted into bitcoin for payment to the wallets of international investors.