This compendium features 18 projects that demonstrate the use of waste-to-energy technologies in the municipal, agricultural, and industrial sectors. Lessons learned from these projects are discussed and provide insights on the challenges and opportunities of waste-to-energy projects. The compendium also provides an overview of specific technologies, including an assessment of their commercial maturity. The compendium complements the Waste to Energy in the Age of the Circular Economy: Best Practice Handbook. Both resources aim to support the efforts of developing countries in Asia and the Pacific to deploy and scale up technologies relevant to the circular economy.