Electricity generation in Cambodia increased by 7.9% in 2021 to 9.7 TWh, according to the government. In addition, the share of households connected to the grid reached 86%. Almost 98% of the 14,000 Cambodian villages were electrified.

According to the Global Wind Energy Council (GWEC), the global wind capacity increased by 93.6 GW in 2021 (+12%), to 837 GW.

According to preliminary statistics, India's coal production increased by 8.6% in the 2021-2022 year (April 2021-March 2022) and reached 777.2 Mt, spurred by the economic recovery and a surge in the power demand (power supply increased by over 8% during the year, its highest growth rate in ten years). Coal production from captive coal mines (for self use, usually in the power sector) surged by nearly 30% to 89.6 Mt. Total coal supply rose by more than 18% to 818 Mt and domestic supply exceeded production by 5.2%, consumers using coal reserves to meet the higher demand. Non-coking coal imports declined by 23% to 126 Mt.

In 2021, total UK territorial greenhouse gas (GHG) emissions increased by 4.7% to 424.5 MtCO₂eq, according to preliminary figures from the UK Department for Business, Energy and Industrial Strategy (BEIS), and CO₂ emissions increased by 6.3% in 2021 to 341.5 MtCO_2eq. Despite this annual rise, total GHG emissions are 5.2% lower than in 2019 and 47.3% lower than in 1990; CO₂ emissions are also 43.6% lower than in 1990. This increase in 2021 is mainly cause by the rise in the use of road transport as nationwide lock-downs were eased, as CO₂ emissions from transport grew by 10% in 2021, accounting for almost half of the overall increase from 2020. CO₂ emissions also increased in the power sector (+9.2%), due to rising demand for electricity and the first increase in the use of fossil fuels for electricity generation from power plants since 2012 (they remained 67% lower than in 1990). Emissions increased by 5.8% in the residential sector, owing to the colder weather in 2021.