The forecast for the length of Power Purchase Agreements (PPAs) for small hydro energy in Japan shows a steady increase from 2024 through 2028, starting at 25 years in 2024 and reaching 28 years by 2028. In 2023, the PPA length was observed at 24 years, indicating continuous interest and stability in investments. Observing the year-on-year variations, an incremental annual increase ranging from 3.85% to 3.57% is expected. The five-year compound annual growth rate (CAGR) highlights a consistent upward trend in agreement durations at approximately 3.85% annually.
Future trends to watch include Japan's evolving renewable energy policies and incentives which could further influence these PPA durations, along with technological advancements in small hydro energy and the global shift towards sustainable energy practices.