'Bubble shmubble,' say clean-tech investors

NEW YORK--You can't avoid the bubble question when it comes to clean-tech investing. Get used to it: with a massive, multi-decade movement of capital, people are bound to fret. It's easy to understand why. Billions of dollars worth of venture capital has gone into a sector that wasn't even on the radar screens of most Sand Hill Road venture capitalists just a few years ago. A panel of private equity and venture capital investment pros addressed the bubble question at the Renewable Energy Finance Forum in New York last week. In general, the response was: there is not an over-investment. In fact, we're only just getting started. Bill Green, at VantagePoint Venture Partners who was on the panel, had a chart that made the point in a compelling way. On one side was the market capitalization of the top ten companies in energy,... [read full story]