Ctg062 metalforming industrial energy efficiency

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Industrial Energy Efficiency Accelerator – Guide to the metalforming sector

Approximately 1,515GWh of energy is used each year in the UK by the metalforming sector to produce 1.3 million tonnes of metal products. This represents CO2 emissions of 450,700 tonnes. Natural gas accounts for 70% of the energy consumption. There are important differences between the energy consumption patterns of the three major sub-sectors. The forging and fasteners sub-sectors both use significant quantities of natural gas to provide process heat, whereas most sheet metal operations are cold manufacturing processes and natural gas is principally used for space heating.

Executive summary This report presents the findings and recommendations of the Investigation and Solution Identification Stage of the Industrial Energy Efficiency Accelerator (IEEA) for the Metalforming sector. The aims of this stage were to investigate energy use within the Metalforming sector-specific manufacturing processes and to provide key insights relating to opportunities for CO2 savings. Around 1.3 million tonnes of metal products are produced in the UK each year. The CO2 emissions associated with this are approximately 450,700 tonnes of CO2 per annum. Six sites were directly involved in the investigations carried out for this project. Collectively the participating sites represented about 5% of sector production. Process and energy data was collected from sub-metering installed at three sites. Overall Potential The total savings potential for the sector from the opportunities identified is difficult to quantify with confidence because a number of opportunities are mutually exclusive (i.e. implementing one may preclude another), and others target the same energy using equipment (i.e. implementing one may reduce the impact of another). Therefore the total savings available to the sector are less than the sum of the savings of individual measures. However the total savings potential avoiding duplication and interaction is thought to be in the order of 20% of the sectors current energy consumption. This would be worth circa ÂŁ11 million p.a. and reduce carbon emissions by 90,000 tonnes CO2 p.a. It should be noted that some of the opportunities can only be realised by the replacement of major plant items. The slow rate of renewal of plant within the sector represents a barrier to the uptake of these opportunities.


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