The Gulf States may have been built on oil, but their future is going to be in solar. The opportunity is enormous, the technology exists and, according to a new report from the National Bank of Abu Dhabi, “cost is no longer a reason not to proceed with renewables.” I’ll repeat that for emphasis: this report comes via the National Bank of Abu Dhabi, one of the biggest banks in the Middle East. And it couldn’t be more enthusiastic about the investment opportunities in renewable energy.