The solar photovoltaic sector is moving forward very fast, both in terms of its own technological advancement and its standing among global renewable energy technologies. Rapid increases in solar cell efficiencies, fast technical change in solar batteries and solar glass, and economies of scale in production fuel its rapid adoption, and it is becoming clear that existing forecasts about its adoption need to be updated extensively. This timely and distinctive examination of the economic side of the field takes into account solar PV's recent and growing lead among renewable energies competing...