 The blockchain sector has seen quite a bit of activity in the renewable energy industry lately, and the trend continues, with new reports coming from South Africa. According to the countrys solar startup, SunExchange, the firm recently raised as much as 3 million. The funds arrived from one of South Africas richest businessmen, as the firm reported. SunExchange is a renewable energy company that lets people purchase individual cells on solar projects. Doing so allows them to earn a rental income, which arrives in cryptocurrency. SunExchange receives 3 million from a single investor The company recently held a Series A 