Six years after BP decided to pull out of solar, they are back with this investment in Lightsource. BP Solar were one of the early pioneers of solar power and I still find it strange that they closed their solar division after 30 years just at the time when solar power really took off worldwide. I imagine this was a decision that they came to regret and as with many of the large oil companies, they are scrambling to invest in renewable and clean technologies. This partnership will hopefully lead to further large scale solar deployment worldwide.