Business-as-usual projections For the steel industry in a
region data available on steel production and energy use are shown in Table
12.3. Data for 2015 and 2020 are known; based on economic projections a
moderate growth of steel production is expected for 2025. No changes in the mix
of steel products are expected.
a. What is the frozen-efficiency energy use of the steel
industry in the region in 2025?
b. Use trend extrapolation to make an estimate of the
business-as-usual energy use in 2025. You can do this in two ways:
extrapolating the development in energy use, or extrapolating the development
in specific energy consumption. Which one do you prefer and why?
c. The steel industry heavily depends on coal, and the
downward pressure on coal prices will likely lead to a 30 per cent drop in
average energy prices for the steel industry in the region. Calculate what
impact that will have on your business-as-usual projection of energy use in the