Simon Phelan remembers the first business plan for Hometree, dated September 21, 2015. The title was “Connecting Investors with Sustainable Investment Opportunities”. Nine years ago, the world was only starting to change from carbon-producing big power plants pumping energy into homes to a distributed model where homes could generate and store their own power.  Getting there wasn’t going to be easy, but the Dubliner believed that by founding Hometree, an innovative residential energy services company, he could play a part in this.   “This requires a massive infrastructure upgrade,” Phelan said. “So at the core of the plan, from the…