5 Most Efficient Countries in the World

4. Japan

Total Final Energy Consumption (Ktoe): 283,020

ACEEE Score: 63.5

Industrial Sector Score: 21

ETI Score: 63.3

Average: 49.26

The national efforts towards energy efficiency in Japan are noteworthy. Despite being one of the biggest energy consumers globally, it has significantly decreased energy intensity. The government encourages energy efficiency and invests in energy efficiency R&D. Japan’s thermal power plants are also highly efficient. The blend of state policies and voluntary action has encouraged energy efficiency overall and made it rank among the top five efficient countries in the world.