Business Green: GE’s ecomagination Challenge, a competition which intends to capture novel ideas on clean energy generation, distribution and use, has generated more than 2,400 entries since its launch on 13 July. The challenge, backed by $200m (£130m) from GE and venture capital firms Emerald Technology Ventures, Foundation Capital, Kleiner Perkins Caufield & Byer and RockPort Capital, is part of GE’s commitment to build innovative clean energy technologies. The competition closes on 30 …