Thursday, February 13, 2020

IEA: "Global CO2 emissions in 2019" (China to claim leadership in cutting emissions in Q1 2020)

From the International Energy Agency, February 11:
Data Release: Global energy-related CO2 emissions flattened in 2019 at around 33 gigatonnes (Gt), following two years of increases

Global energy-related CO2 emissions flattened in 2019 at around 33 gigatonnes (Gt), following two years of increases. This resulted mainly from a sharp decline in CO2 emissions from the power sector in advanced economies1, thanks to the expanding role of renewable sources (mainly wind and solar PV), fuel switching from coal to natural gas, and higher nuclear power output....
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....Regional Trends
Economic growth in advanced economies averaged 1.7% in 2019, but total energy-related CO2 emissions fell by 3.2%. The power sector led the decline and now accounts for 36% of energy-related emissions across advanced economies, down from a high of 42% in 2012. The average CO2 emissions intensity of electricity generation declined by nearly 6.5% in 2019, a rate three times faster than the average over the past decade. In absolute terms, an average emissions intensity of 340 grams of CO2 per kilowatt hour in 2019 is lower than all but the most efficient gas-fired power plants.
Generation from coal-fired plants in advanced economies declined by nearly 15% as a result of continued growth of renewables, coal-to-gas fuel switching, a rise in nuclear power and weaker electricity demand. The growth of renewables in electricity generation in advanced economies delivered 130 Mt of CO2 emissions savings in 2019. Wind accounted for the biggest share of the increase, with output expanding 12% from 2018 levels. Solar PV saw the fastest growth amongst renewable sources, helping to push renewables’ share of total electricity generation close to 28%. Coal-to-gas fuel switching for power generation avoided 100 Mt of CO2 in advanced economies and was particularly strong in the United States due to record low natural gas prices. Higher nuclear power generation in advanced economies, particularly in Japan and Korea, avoided over 50 Mt of CO2.

The United States saw the largest decline in energy-related CO2 emissions in 2019 on a country basis – a fall of 140 Mt, or 2.9%, to 4.8 Gt. US emissions are now down almost 1 Gt from their peak in the year 2000, the largest absolute decline by any country over that period. A 15% reduction in the use of coal for power generation underpinned the decline in overall US emissions in 2019. Coal-fired power plants faced even stronger competition from natural gas-fired generation, with benchmark gas prices an average of 45% lower than 2018 levels. As a result, gas increased its share in electricity generation to a record high of 37%. Overall electricity demand declined because demand for air-conditioning and heating was lower as a result of milder summer and winter weather.

Energy-related CO2 emissions in the European Union, including the United Kingdom, dropped by 160 Mt, or 5%, to reach 2.9 Gt. The power sector drove the trend, with a decline of 120 Mt of CO2, or 12%, resulting from increasing renewables and switching from coal to gas. Output from the European Union’s coal-fired power plants dropped by more than 25% in 2019, while gas-fired generation increased by close to 15% to overtake coal for the first time.

Germany spearheaded the decline in emissions in the European Union. Its emissions fell by 8% to 620 Mt of CO2, a level not seen since the 1950s, when the German economy was around 10 times smaller. The country’s coal-fired power fleet saw a drop in output of more than 25% year on year as electricity demand declined and generation from renewables, especially wind (+11%), increased. With a share of over 40%, renewables for the very first time generated more electricity in 2019 than Germany’s coal-fired power stations.

The United Kingdom continued its strong progress with decarbonisation as output from coal-fired power plants fell to only 2% of total electricity generation. Rapid expansion of output from offshore wind, as additional projects came online in the North Sea, was a driving factor behind this decline. Renewables provided about 40% of electricity supply in the United Kingdom, with gas supplying a similar amount. The share of renewables became even higher in the later part of the year, with wind, solar PV and other sources generating more electricity than all fossil fuels combined during the third quarter.

Japan saw energy-related CO2 emissions fall 4.3% to 1 030 Mt in 2019, the fastest pace of decline since 2009. The power sector experienced the largest drop in emissions as reactors that had recently returned to operation contributed to a 40% increase in nuclear power output. This allowed Japan to reduce electricity generation from coal-, gas- and oil-fired power plants....
....MUCH MORE
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