Access to clean sources of energy is essential for countries in developing Asia to promote economic growth, strengthen energy and national security, confront global climate change, and ensure environmental sustainability. Countries in developing Asia largely recognize the benefits of investing in renewable energy and clean technologies but vary in their ability to create enabling environments conducive to private sector investment in their clean energy sectors. Significant financing for clean technology in the region exists in the form of long‐term debt, multilateral and bilateral development finance, venture capital and private equity funding, and carbon funding which could all be scaled up to facilitate investment in national clean technology sectors. These mechanisms will be most effective in countries where strong, flexible, and transparent regulatory environments are in place and enforced.