13th November 2023
Earlier this month I wrote about plans for switching from coal fired to electric fired furnaces for producing steel. It is an essential move in terms of reducing green house gas emissions, but it comes with complications – the electric furnaces need a smaller workforce so new jobs needed in other parts of the economy; the electric furnaces use recycled metal rather than raw ore which is a good thing in terms of reducing unsustainable consumption of raw materials but does need us now to have better systems for collecting and recycling unwanted metal; and a reduction in demand for coal:
“Electric arc furnaces require only 9kg of coking coal a tonne of steel against 780kg for a tonne of blast furnace steel, according to the lobby group UK Steel. British blast furnaces produced 4.8m tonnes of steel in 2022, suggesting they may have used 3.7m tonnes of coking coal. Based on UK Steel’s figures, producing the same amount of steel in electric arc furnaces would require only 43,000 tonnes of coal, or about 1.7% of the Cumbrian mine’s output.” (1)
This must call into question whether there is any sense of continuing with the creation of the West Cumbrian coal mine. But equally it points to the need to develop other parts of our economy to create employment and to use the skills that people have.
The Green Tau 