They’re called “unicorns” — companies that have soared to a $1 billion valuation or higher, based on private fundraising alone. The billion-dollar tech start-up was once the stuff of myth, but now they seem to be everywhere, backed by a bull market and a new generation of disruptive technology, like energy storage. Silicon Valley based Bloom Energy is one from the herd of unicorns in the US today, but is the clean-tech start-up really what it makes out to be. Founded in Sunnyvale, California, in 2001, Bloom Energy describes itself as “changing the way the world generates and consumes energy”. Claiming that their “Energy Servers are among the most efficient energy generators on the planet; providing for significantly reduced electricity costs and dramatically lower greenhouse gas emissions”. Bloom produces fuel cells, “Bloom boxes”, to convert natural gas and other fuels into electricity. It installs its power-producing units in office buildings, data centres and other customer […]