Bitcoin-paying solar power company plans African expansion

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Sun Exchange’s platform currently has about 35 000 investors from 180 countries. Photo: File
Sun Exchange’s platform currently has about 35 000 investors from 180 countries. Photo: File


Sun Exchange, a South African firm that crowdsources 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, raised $1.4 million (R21.3 million) for a solar panel and battery storage project at a Zimbabwean fruit and berry producer, in what it says is the biggest crowdfunded project in Africa.

Its venture at Nhimbe Fresh sees individuals or other investors buying solar cells for $5 to $10 each on its platform and then leasing them back. Investors are repaid over 20 years in either Bitcoin or rands, 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.

READ: Zimbabwe bucks the trend to cleaner energy, digging deeper into coal

We fill a funding gap for businesses and schools and retirement homes to get solar power at no cost to themselves,” said Abraham Cambridge, co-founder and CEO of Sun Exchange. We are really now looking to expand into agriculture.

Cambridge said: 

Sun Exchange has the panels installed and also maintain them. 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.


Sun Exchange’s platform currently has about 35 000 investors from 180 countries. It’s formed a partnership with Energea Global 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 supermarkets. Funds are currently being raised for 332KW of panels and 640 kilowatt hours of battery storage at a broccoli and saffron farm in the Karoo.

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

Cambridge said: 

We are really looking at the Southern African Development Community. 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 Eskom’s inability to meet demand, electricity supply is even more erratic in many of its neighbouring countries.

READ: Ramaphosa says the R131 billion will help to end load shedding

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

Three quarters of a $4 million series A funding round came from Arch Emerging Markets Partners, 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 last year, with Arch taking $2.5 million of that. – Bloomberg


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