The total renewable energy in Thailand has shown fluctuations over the past decade, with values ranging from 18.63 in 2013 to 20.61 in 2023. The year-on-year variation was marked by significant changes, including a notable increase of 9.19% in 2016 and a decrease of 5.26% in 2017. Over the last five years, the compound annual growth rate (CAGR) has been modest at 0.69%, indicating a stable but slow growth trend. Forecasts suggest a slight increase in renewable energy supply, with the CAGR for the next five years projected at 0.18% and an overall forecasted growth rate of 0.89% by 2028. Future trends to watch for include technological advancements, government policies aimed at increasing renewable energy adoption, and investment in infrastructure to better integrate renewable sources into the grid.