A recently published report by the International Energy Agency (IEA) titled IEA’s semi-annual Electricity Market Report sees a 5% rise in electricity demand in 2021, with almost half the increase met by fossil fuels, notably coal. The surge is threatening to push CO2 emissions from the power sector to record levels in 2022.
Renewables are expanding quickly but not enough to satisfy a strong rebound in global electricity demand this year, resulting in a sharp rise in the use of coal power that risks pushing carbon dioxide emissions from the electricity sector to record levels.
“Renewable power is growing impressively in many parts of the world, but it still isn’t where it needs to be to put us on a path to reaching net-zero emissions by mid-century,” said Keisuke Sadamori, the IEA Director of Energy Markets and Security.
“As economies rebound, we’ve seen a surge in electricity generation from fossil fuels. To shift to a sustainable trajectory, we need to massively step up investment in clean energy technologies – especially renewables and energy efficiency,” added Sadamori.
After falling by about 1% in 2020 due to the impacts of the Covid-19 pandemic, global electricity demand is set to grow by close to 5% in 2021 and 4% in 2022 – driven by the global economic recovery.
Based on current policy settings and economic trends, electricity generation from renewables – including hydropower, wind and solar PV – is on track to grow strongly around the world over the next two years – by 8% in 2021 and by more than 6% in 2022. But even with this strong growth, renewables will only be able to meet around half the projected increase in global electricity demand over those two years, according to the new IEA report.
Fossil fuel covering the majority of electricity demand
Fossil fuel-based electricity generation is set to cover 45% of additional demand in 2021 and 40% in 2022, with nuclear power accounting for the rest. As a result, carbon emissions from the electricity sector – which fell in both 2019 and 2020 – are forecast to increase by 3.5% in 2021 and by 2.5% in 2022, which would take them to an all-time high.
Renewable growth has exceeded demand growth in only two years: 2019 and 2020. But in those cases, it was largely due to exceptionally slow or declining demand, suggesting that renewables outpacing the rest of the electricity sector is not yet the new normal.
However, coal-fired electricity generation is set to increase by almost 5% this year and by a further 3% in 2022, potentially reaching an all-time high, according to the Electricity Market Report. Gas-fired generation, which declined 2% in 2020, is expected to increase by 1% in 2021 and by nearly 2% in 2022. The growth of gas lags that of coal because it plays a smaller role in the fast-growing economies in the Asia Pacific region and it faces competition from renewables in Europe and North America.