US based Heliogen this week got an enormous amount of coverage, so much so the phone will be ringing off the hook. It was kind of a company launch, out of stealth, but at the same time it was supposed to be an investment round – the amount of money was not specified, but it was intimated that this was go to market money – we’re having none of it, the idea is in its infancy and needs considerable development. In the end it is just another Concentrated Solar Power company, but what has people writing about it is the fact that Bill Gates has invested in it, but as we have pointed out in the past, a smart guy…