Wind and solar developers and other transition-related companies are being undervalued on stock markets, making it harder for them to raise money. This is according to the chief executive of ReNew Energy Global, one of India’s biggest wind and solar developers. “If you look at basic valuations, it’s very clear that companies are not being rewarded for growth, for the scale they have built over the past few years,” Sumant Sinha told the Financial Times. “Public capital markets are not hospitable right now.…