Analysis on Reducing Electricity Costs at Kunming Wastewater Treatment Plant Under Power Reform Policies
In a city,the operation of sewage treatment plants is directly related to the construction of civ-ic production.During the operation of sewage treatment plants,electricity costs account for 25%～35%of the operating costs depending on the processes used.Effective electricity cost management is crucial for saving on operating expenses.The new power reform policies have promoted energy saving and consump-tion reduction in sewage treatment plants.This paper analyzes the results of four typical sewage plants in Kunming over the past two years.In 2022,the main transaction mode was annual transactions,which ac-counted for 70%of total electricity consumption,while the remaining 30%was adjusted through monthly transactions.One-time bundled transactions provided an overall price advantage,saving a total of 1.49 million yuan in electricity costs compared to 2021,indicating significant cost-saving potential.Addition-ally,by leveraging transaction prices during low-water and flat-water periods and participating in electric-ity market transactions,electricity costs were reduced by 35%～45%compared to non-implementation scenarios.These relevant experiences provide valuable insights and serve as a model for the operation of sewage treatment plants.
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