Solar is in many ways the most promising of the low carbon technologies. It is highly scalable, and there is obviously binding limit on how much costs can come down. Here a series of pages looks at the prospects for solar.
The first page looks at the historic growth of solar, which has been exponential for much of its history, why this seems counter-intuitive and how it might change.
The second page extrapolates previous growth for solar, and develops a simple model of cumulative capacity growing with the square of time.
The third page looks more generally on what constraints there might be on the future growth of solar, concluding that storage, and in particular seasonal storage in some markets, is the crucial issue.