The Clean Energy Investment Market Monitor, produced by the United Nations Sustainable Stock Exchanges (UN SSE) initiative with technical support from S&P Global Energy, examines global trends, investment patterns and cost developments shaping the clean energy transition. The publication highlights a fundamental shift in the global energy investment landscape, with spending on clean energy technologies surpassing upstream oil and gas investment and emerging as the primary driver of growth in energy supply-side capital expenditure. Drawing on regional and technology-level projections, it explores the scale and distribution of anticipated investment through 2030, identifying solar photovoltaic, wind power and battery energy storage as key areas of growth. It also examines regional differences in investment priorities and deployment costs, highlighting the leading role of China and the growing importance of grid infrastructure in supporting electrification and decarbonization. Overall, the report provides an overview of the evolving clean energy investment landscape and the economic and regional dynamics shaping its development towards 2030.