Solar power could transform small communities around the world, but remote villages can’t always scrape together the thousands of dollars required to install the requisite cells. The Sun Exchange wants to change that by leveraging the hearts and wallets of hobby investors who cover the installation costs and then have their share of the revenue trickle in for years to come. There’s even a cryptocurrency!

The whole thing, as explained onstage at Disrupt Berlin today, works like this. First, the Sun Exchange and its partners (solar companies in various sun-drenched locations around the world) locate projects where a small installation — think less than a megawatt — could make a big impact, for instance rural clinics or villages with inconsistent power.

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