Bitcoin-Paying Solar Power Company Plans African Expansion

(Bloomberg) -- Sun Exchange, a South African firm that crowd-sources funds for solar panels and leases them to customers, plans to expand to other countries on the continent. 

The company, backed by a group part-owned by billionaire Patrice Motsepe’s African Rainbow Capital Investments Ltd., raised $1.4 million for a solar panel and battery-storage project at a Zimbabwean fruit and berry producer, in what it says is the biggest crowd-funded project in Africa.

Its venture at Nhimbe Fresh sees individuals or other investors buying solar cells at $5 to $10 each on its platform and then leasing them back. Investors are repaid over 20 years in either Bitcoin or rand, with about 60% electing to be paid in the cryptocurrency. The Zimbabwean project, one of 50 by Sun Exchange, was funded through purchases by 1,905 individuals in 98 countries. 

The approach allows individuals to make a contribution to reducing climate-warming emissions with relatively small investments while still receiving a competitive rate of return. It also helps fill a chronic electricity shortage in the region. 

“We fill a funding gap for businesses and schools and retirement homes to get solar powered at no cost to themselves,” Abraham Cambridge, co-founder and chief executive officer, said in an interview. “We are really now looking to expand into agriculture.”

Sun Exchange has the panels installed and maintained. Investors in the Nhimbe Fresh project can expect an internal rate of return of 16.7%, according to the firm. It uses Bitcoin because “it’s an almost universal medium of exchange,” Cambridge said. 

Schools, Supermarkets

Sun Exchange’s platform currently has about 35,000 investors from 180 countries. It’s formed a partnership with Energea Global LLC to source investment for the solar cells.

The company, which built its first project in 2016, has raised $8.3 million to date with investors including venture capital funds based on blockchain technology. 

Its other projects include solar power for schools and retirement homes in South Africa and six Spar Group Ltd. supermarkets. Funds are currently being raised for 332 kilowatts of panels and 640 kilowatt hours of battery storage at a broccoli and saffron farm in South Africa’s Karoo semi-desert. 

It’s helped install 5.4 megawatts of generation capacity and funding has been secured for 7 megawatts, and it now intends to expand elsewhere in Africa. 

“We are really looking at the Southern African Development Community,” Cambridge said. “We will be looking at countries with the most unreliable electricity access.”

While South Africa is regularly beset by power outages as a result of utility Eskom Holdings SOC Ltd.’s inability to meet demand, electricity supply is even more erratic in many of its neighbors.

Sun Exchange’s initial seed funding round of $1.5 million saw investment from Boost VC, Techstars Central LLC and the Alphabit Fund. 

Three quarters of a $4 million series A funding round came from Arch Emerging Markets Partners Ltd., a company co-founded by African Rainbow, with the African Development Bank and the European Investment Bank also investing. A sale of $2.8 million in convertible notes followed in 2021, with Arch taking $2.5 million of that.

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