Globální energetika a CO2
Global Energy & CO2 Status Report
International Energy Agency
The IEA’s first Global Energy and CO2 Status Report – released in March 2018 – provides a snapshot of recent global trends and developments across fuels, renewable sources, and energy efficiency and carbon emissions, in 2017.
Fossil fuels met over 70% of the growth in energy demand around the world. Natural gas demand increased the most, reaching a record share of 22% in total energy demand. Renewables also grew strongly, making up around a quarter of global energy demand growth, while nuclear use accounted for the remainder of the growth. The overall share of fossil fuels in global energy demand in 2017 remained at 81%, a level that has remained stable for more than three decades despite strong growth in renewables.
Improvements in global energy efficiency slowed down. The rate of decline in global energy intensity, defined as the energy consumed per unit of economic output, slowed to only 1.6% in 2017, much lower than the 2.0% improvement seen in 2016.
The growth in global energy demand was concentrated in Asia, with China and India together representing more than 40% of the increase. Energy demand in all advanced economies contributed more than 20% of global energy demand growth, although their share in total energy use continued to fall. Notable growth was also registered in Southeast Asia (which accounted for 8% of global energy demand growth) and Africa (6%), although per capita energy use in these regions still remains well below the global average.
Improvements in global energy efficiency slowed down dramatically in 2017, because of weaker improvement in efficiency policy coverage and stringency as well as lower energy prices. Global energy intensity improved by only 1.7% in 2017, compared with an average of 2.3% over the last three years.
World electricity demand increased by 3.1%, significantly higher than the overall increase in energy demand. Together, China and India accounted for 70% of this growth. Output from nuclear plants rose by 26 terrawatt hours (TWh) in 2017, as a significant amount of new nuclear capacity saw its first full year of operation.
This analysis uses the latest monthly and annual data available from national statistical offices, energy ministries and international organisations to build full energy balances by region. Where complete 2017 data is unavailable, this report uses market data and analysis by fuel and sector.