环境部将通过自愿减排交易机制，推进农林生物质能源化利用

Core Insights - The article discusses the potential of pure agricultural and forestry biomass grid-connected power generation and cogeneration projects to significantly reduce carbon dioxide emissions, with current annual reductions estimated at approximately 24 million tons, potentially increasing to around 50 million tons by 2030 [1][2] Group 1: Emission Reduction Potential - Current projects can produce an annual reduction of about 24 million tons of CO2, with projections to reach approximately 50 million tons by 2030 [1] - The Ministry of Ecology and Environment is planning to support the sustainable development of this sector through a voluntary greenhouse gas emission reduction trading mechanism [1][2] Group 2: Economic Viability Challenges - The investment and operational costs for these biomass projects are high, leading to poor economic viability, with internal rates of return below the electricity industry's benchmark rate of 8% [2][4] - The methodology being developed aims to simplify the process and support the industry through voluntary emission reduction trading, addressing the economic challenges faced by these projects [2][4] Group 3: Technological Approaches - There are two main technological routes for biomass energy utilization: direct combustion for power generation and cogeneration, and pyrolysis under low or no oxygen conditions to produce combustible gases [4][5] - Over 98% of biomass power generation projects in China utilize direct combustion technology, while pyrolysis projects primarily focus on heat generation [5] Group 4: Project Methodology and Guidelines - The methodology is specifically designed for projects using agricultural and forestry residues, excluding those that involve co-firing with animal manure or fossil fuels [5][6] - The default transportation distance for biomass raw materials is set at 200 kilometers, aligning with management policy requirements and actual project conditions [6]