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What are the different energy efficiency indicators in industry?
In industry, energy efficiency indicators should preferably be expressed in physical units (e.g. toe, GJ per tonne). For industry subsectors (i.e. branches) for which there is not a dominant product, the energy consumption can be related to the index of production, as this index is deemed to represent the physical production of a branch. Another indicator is also used to compare the energy performance of industrial branches is the energy intensity (i.e. energy consumption per unit of value added). This is the case for the calculation of the energy intensity of industry at adjusted structure.
Related question
- How many branches are part from the industry sector in Odyssee?
What is the indicator used to measure energy savings in services sector in Odyssee methodology?
In Odyssee, the energy savings in services sector are calculated from the variation of the unit consumption per employee; a unit consumption per m2 of floor area would be more relevant but not enough countries can provide data on the floor area.

Why economic related indicators (intensities) are compared at purchasing power parities?
For countries’ comparison, energy intensities have to be measured in the same monetary unit (€, $) by converting national currencies in €, $. The conversion with market exchange rates raises two problems:
- Market exchange rates vary quite a lot independently of the economic performance of countries which affect the relative energy intensity values between countries (their “ranking”)
- The conversion does not reflect the fact that in less developed countries consumer prices are on average much lower than in more developed countries.
The use of Purchasing Power Parities (PPP) improves the comparison as it does not fluctuate and accounts for the real purchasing power of incomes.
What is the best economic indicator to measure activity in the transport sector?
Transport energy consumption results from the activity of various modes of transportation. Therefore, there is not a good sectorial indicator of activity. The value added of transport only refers to the activity of transport companies, which drives part of the consumption of trucks and all the consumption of rail, water and air transport. All the consumption of cars and light duty vehicles has nothing to do with the value added of transport sector, which represents almost half of the consumption of the sector. Therefore the best economic indicator to measure the activity of the transport sector is the GDP.

How can I rank the countries performance in terms of energy efficiency?
Go to the energy indicator scoreboard http://www.indicators.odyssee-mure.eu/energy-efficiency-scoreboard.html, select ranking and the sector for which you want to score the countries.

Link to tool
Which countries have the best energy efficiency performance?
Go to the energy indicator scoreboard http://www.indicators.odyssee-mure.eu/energy-efficiency-scoreboard.html, select ranking and the sector for which you want to score the countries.
Related question
- How can I rank the countries performance in terms of energy efficiency?
Link to tool