Energy Consumption and Losses in Detergent Manufacturing from a Cleaner Production Perspective: A Case Study in Vietnam

Abstract

    ​Rising energy costs and tightening emission-reduction requirements increase pressures on detergent manufacturers. This case study in Vietnam assesses energy use and losses from a cleaner production (CP) screening perspective through a case study of a detergent manufacturing enterprise in Vietnam, based on energy baseline analysis, energy intensity per unit of product, and loss cost estimation. Total consumption reached 600,000 kWh of electricity/year and 9.6 tons of fuel gas/year, with energy- and resource-related costs of approximately VND 2.18 billion/year, of which electricity and fuel gas accounted for about 96.9%. At an average output of 1,133 tons/year, energy intensity was 529.57 kWh/ton (electricity) and 8.47 kg/ton (fuel gas). Energy use was concentrated in mixing, heating, and filling-packaging, identified as key CP hotspots. Estimated energy losses of VND 196.35 million/year (nearly 9% of total energy costs) indicate substantial energy-saving potential and support prioritization of CP-oriented measures. This study quantifies the current status and saving potential under a CP screening approach and does not include pre-post measurement of implemented interventions.