Comprehensive Evaluation Study of PV-biogas-gas-electricity Multi-energy Coupling System for Industrial Enterprises Based on Actual Measurement Data
Large industrial producers consume a huge amount of energy and are a key area of focus for achieving peak carbon and carbon neutrality targets.Based on the operational monitoring of the traditional energy supply system and the transformed PV(photovoltaic)-biogas-gas-electricity system,and the user-side load characteristics and typical daily cooling,heating and the electricity power load scheduling characteristics were analyzed.The annual energy supply data and important energy supply influencing factors of the PV-biogas system were studied,and an evaluation index system for the comprehensive energy system was built,and five factors:PV-biogas system operation status,economic benefits,energy supply quality,environmental benefits and energy efficiency were collaboratively considered,and the comprehensive performance of traditional energy supply system and PV-biogas-gas-electricity system were evaluated.The results show these as follows.Large industrial production enterprises with mainly thermal requirement,typical daily load peaks occur at 09:00-11:00 or 14:00-17:00,the PV-biogas-gas-electricity multi-energy system can meet the cooling,heating and electricity needs of industrial enterprises.The average penetration rate of PV system is less than 10％during non-force majeure hours,and the proportion of gas storage capacity of the biogas system is higher than 50％during normal hours,and the system supply reliability is improved.The evaluation results of a typical case verify the feasibility and validity of the evaluation index system of PV-biogas-gas-electricity multi-energy system,and provide a reference for the comprehensive utilization and coordinated development of PV-biogas-gas-electricity multi-energy system for large industrial enterprises in the future.
PV-biogas-gas-electricity systemoperational monitoringPV penetration rateproportion of biogas storageevaluation index system
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