What exactly is wrong with renewables, and why aren’t we all-green already? Subsidy abuse and insufficient economic viability in the face of cheap oil are two of the most common criticisms thrown at the renewable industry. These, however, are nothing compared to the biggest challenge that the green energy industry has encountered: the impossibility to store power produced—at least not in an affordable and reliable enough way. This is about to change as a growing number of companies – from leading utilities such as E.ON and GE to startups like California-based Stem – are working on developing cheaper energy storage solutions aimed at eliminating a challenge that’s been putting a spoke in the wheels of renewable energy for decades. Sensing which way the winds are blowing, some utilities and energy industry majors have not wasted time entering this promising segment. Total bought into Stem last year and […]