Quote Originally Posted by David Vincent View Post
There is a chart in the link below which shows that in 2016 UK industry used a third of the energy industry used in 1970. If we are making twice as much stuff today as we did then you would expect us to be using more energy not less. It could be that we are using energy more efficiently and of course there is less heavy industry nowadays but I don't think that explains how we could be producing twice as much with a third of the energy.

They are just lying to us for the fun of it.

https://www.carbonbrief.org/five-cha...ergy-last-year
Doesn't answer the output side of your question but this extract of the attached study analyses the question on the reduction of energy input.

Character of the Industrial Sector
The current situation in regard to energy use in UK industry and its recent historic development can obviously in
fluence the potential for future improvements. Thus, since the 1973 oil price hike, industry has been the only sector of the UK economy to have experienced a dramatic decline in final energy demand of roughly 50% in the period 1973
–2007 (prior to the global economic slump of 2008). This was in spite of a rise of some 15% in the real gross value added (GVA) of industry over the same period. The consequent drop in aggregate energy intensity (defined as energy use per unit of economic output) is driven by different effects:

Energy efficiency:
A large part of the decline in industrial energy intensity can be attributed to energy efficiency improvements; an estimated 80% of the fall in industrial energy demand between 1970 and 1995 resulted from this.

Structural change:
The relative size of industrial subsectors has changed with a transition away from EI industries.

Fuel switching:
Coal and oil use has steadily declined in favor of cleaner fuels, such as electricity and gas. These cleaner fuels can be
used with a higher degree of control and so are more efficient than alternatives. Additionally, when examining primary energy demand, the increase in the efficiency of electricity generation (largely caused by fuel switching in favor of nat-
ural gas) will have the effect of lowering primary energy use.

http://ciemap.leeds.ac.uk/wp-content...-reduction.pdf