Interesting data - thanks. Perhaps you could say that 2018 is the year of solar, but the cost reduction is balanced against a tougher policy environment. Taking Europe as an example, in lots of markets the challenge is now to develop subsidy-free projects. There are some great pioneering examples, and corporate Power Purchase Agreements (PPAs) are helpful, but it certainly takes effort and fresh thinking to make it stack up.
My guess is that 2018 will be the year of batteries! :)