High energy intensity may be sign of wasteful sectors, e.g. transport, lacking insulation in households & multi-storey buildings or industry    

2 Pros:
•    Sectoral E/GDP data carry much more differentiated information
•    Each sector exhibits different paths

3 Cons:
•    Even the energy-intensive sectors are needed for any country’s economy
•    Effect of outsourcing intensive sectors to other continents remains hidden
•    Climatic effect (e.g. winter cold) princi-pally creates biases in E/GDP data