Citywire: The dramatic plunge in the oil price has sparked falls in the shares of green energy companies over recent months. With oil having tumbled around 56% since June last year, investors have been re-evaluating the credentials of those companies reliant on or producing energy from other sources.
US electric car maker Tesla (TSLA.O) is perhaps the most celebrated of these stocks. Held at opposite ends of the investment credibility stakes by the Scottish Mortgage (SMT ) investment trust and our own...