Global annual investment in solar PV and other generation technologies, 2021-2024 - Chart and data by the International Energy Agency. In 2024, between 554 GWdc and 602 GWdc of PV were added globally, bringing the cumulative installed capacity to 2. The rest of the world was up 11% y/y. 7 gigawatts direct current (GWdc) of capacity in Q3 2025, a 20% increase from Q3 2024, a 49% increase from Q2 2025, and the third largest quarter for deployment in the industry's history. Following a low second quarter, the industry is ramping up as the end of. At the highest level, valuation methods for renewable energy can be broken into two main categories: discounted cash flow (DCF) and multiples valuations, two approaches which are in practice not mutually exclusive. 21 billion in 2024 and is projected to reach USD 609. Rising global concerns regarding climate change, increased emphasis on sustainable and clean energy solutions, favorable.