In Sonnen's early years the answer was easy - a manufacturer and vendor of residential batteries. Now, the question is harder to answer as it has added on hardware such as photovoltaics and wallboxes for electric vehicles - with an electricity retail and finance wraparound. All of this optimised for the householder by home energy [...]The post Shell puts Sonnen up for sale at a reported unicorn valuation: but what type of company is Sonnen? appeared first on LCP Delta.