The dual-carbon goals and rural revitalization strategy call for the upgrading of China’s rural energy systems. To address the mismatch between load demand and distributed resources like PV and biomass energy in rural areas

this paper establishes a coordinated PV-biomass rural integrated energy system

which accurately describes the flexibility of temperature-augmented biogas production and develops an operational optimization model. Additionally

considering uncertain external temperatures

a rolling optimal scheduling approach over multiple digestion periods is proposed. Rolling optimization pf operation scheduling is performed in two stages: scheduling of biogas across multiple digestion periods and day-ahead scheduling. Simulations conducted on the rural integrated energy system in the Dongxin Farm area of Jiangsu Province demonstrate the effectiveness of the proposed model and method in stabilizing the voltage amplitude at each node of the distribution network

as well as reducing system operational costs and carbon emissions

thereby achieving green utilization and efficient conversion of rural energy.