Dec 11, 2008 - Cleantech venture capital investing totaled $2.6 billion in 3Q08—an all-time high, surpassing the previous high of $2.2 billion in 2Q08. The number of investments also hit an all-time high in 3Q08, totaling 158. Nov 13, 2008 - The global concentrated solar thermal (CST) sector is primed for growth. In this executive brief, Cleantech Group explores the range of technologies being pursued by CST developers and how they're now being given opportunity to prove their merit.