High Quality Content by WIKIPEDIA articles! The Energy efficiency in Europe study is part of the Odyssee project. It aims to monitor energy efficiency progress and CO2-reduction for the EU-27 countries and Norway and Croatia, understand the energy demand trends for European countries, compare the countries in their relative energy efficiency performance, as well as to benchmark values, measuring the contribution of innovative energy efficiency and renewables technologies to the Lisbon targets to make Europe more competitive and analyse and evaluate the performance of energy efficiency policies in the different EU Member States and at EU level.