One of the world’s leading clean tech investors has today urged the sector to resist the temptation to succumb to a crisis of confidence and recognise that the fundamental economic drivers that have driven a decade of rapid growth for the nascent industry remain firmly in place.Speaking at the National Renewable Energy Laboratory (NREL) Industry Growth Forum in Denver, Colorado, Ira Ehrenpreis, a partner at venture capital Technology Partners and a board member at Tesla Motors, argued that while the sector has faced considerable challenges over the past two years the sector still has “the potential to power the 21st century with energy that is