The oil-rich Middle East is boosting investments in renewable energy generation at home and abroad. Just a few years ago, this notion would have raised a few eyebrows. But these days, Persian Gulf companies’ increased investments in solar and wind power in the region and around the world make perfect sense in a world that begins its long energy transition journey and a Middle East suffering from low oil prices. The largest power firms in some of OPEC’s leading producers expand their international footprint, aiming to capture…