Core Viewpoint - The article emphasizes the increasing economic viability of biomass resource utilization in China, driven by supportive policies, which enhances the potential for clean heating in rural areas and promotes a diversified clean energy supply system alongside wind and solar energy [1][3]. Group 1: Biomass Resource Utilization - China produces over 800 million tons of straw annually, and improper disposal leads to air quality issues and waste of green resources [5]. - The cost of biomass heating is becoming more competitive, with an average fuel cost of approximately 144 RMB per ton of steam, compared to 333 RMB for gas and coal boilers, especially during times of tight natural gas supply and rising coal prices [5]. - The utilization of biomass energy, particularly in rural areas, is crucial for achieving environmental goals and supporting rural clean heating initiatives [5][6]. Group 2: Policy Support and Strategic Importance - Recent top-level designs and the "14th Five-Year Plan" highlight the strategic importance of rural energy, positioning it as a key pillar for energy security, carbon reduction goals, and rural revitalization [6]. - The integration of various technologies and policies, such as zero-carbon parks and advancements in heat pump technology, creates favorable conditions for low-carbon heating in rural areas [6]. Group 3: Progress in Rural Biomass Heating - Rural biomass heating is transitioning from pilot projects to large-scale promotion, particularly in resource-rich areas like Heilongjiang Province, which produces about 90 million tons of straw annually [8][9]. - Heilongjiang has achieved a comprehensive utilization rate of 95.07% for straw, with over 660,000 households using biomass heating, representing over 60% of rural households [9]. - Innovative models in Heilongjiang include various combinations of biomass and electric heating systems, enhancing cost efficiency and promoting low-carbon living [9]. Group 4: Coupling Biomass with Solar Energy - The coupling of biomass energy with solar heating has received clear policy support, with the aim of integrating multiple energy sources for efficient utilization [11]. - This approach not only promotes the use of biomass resources but also supports the development of rural photovoltaic projects, addressing challenges related to limited distribution capacity in rural areas [11]. - Establishing distributed biomass fuel processing plants in rural areas can facilitate the integration of solar energy and biomass, potentially resolving issues related to photovoltaic access [11].