First, the environmental externality of biomass energy is low, which is conducive to the realization of a circular economy. For example, biomass power generation provides an effective way to treat and utilize agricultural and forestry wastes, which helps to reduce open burning of straws and the resulting environmental pollution. In this process, the ash produced by biomass combustion can also be used as organic fertilizer, so as to realize the recycling of agricultural and forestry waste and “turn waste into treasure”. In addition, the promotion of biomass fuels to replace coal in industrial production is also a way to reuse biomass resources and help to achieve carbon emission reduction in the industrial field.
Second, the use of biomass energy can solve the problems of electricity and heat at the same time, which is an advantage that other forms of renewable energy such as wind power and photovoltaic power generation do not have. Due to the limitations of technology, land use and the characteristics of wind-solar water renewable energy, in the future, the world will use heat pump technology on a large scale to solve the heating problem through electrification, and it still faces many challenges. Therefore, another possibility is to keep a part of the thermal power in the new power system in the future, and make it heat at the same time. Then, in this scenario, biomass energy will also play a role in power supply and heating, and show its zero-carbon advantage.
Third, biomass can help solve the problem of energy storage at different time scales, and provide support for the construction of a new, safe and stable power system with renewable energy as the main body. In this regard, biomass can be used as an energy option to solve the problem of energy storage at different time scales, including hourly, trans-day, trans-week and even trans-season.
Fourth, biomass brings the opportunity to achieve negative carbon, which helps to vigorously promote rural revitalization. Biomass resources effectively absorb carbon dioxide in the atmosphere during their growth. Although carbon dioxide is emitted into the atmosphere in the process of being used as fuel or industrial raw materials, from the perspective of the full cycle, it can achieve “net zero” emissions of carbon dioxide. . On this basis, if combined with CCS technology to capture and store the emitted carbon dioxide, the “negative emission” of precious carbon dioxide can be achieved, which will undoubtedly contribute to the realization of the carbon neutrality goal.