Emissions from fossil fuels down most since 2011 last year

Fall in CO2 emissions was mostly due to a 70% year-on-year reduction in coal

Energy from renewable sources accounted for 12 per cent of all energy used, up from 10.9 per cent in 2018.

CO2 emissions from fossil fuels used for energy fell by 4.5 per cent last year, which was the biggest yearly reduction in energy-related CO2 emissions since 2011, new figures show.

The latest figures from the Sustainable Energy Authority of Ireland (SEAI), published on Monday, show most of the progress was in electricity generation, with little improvement in heat and transport.

The fall in CO2 emissions was mostly due to a 70 per cent year-on-year reduction in coal used for generating electricity. Energy used for heat in homes and businesses was down in 2019, though most of the reduction was due to it being warmer than 2018.

Transport, the sector that consumes most fossil fuels and where most CO2 is emitted, showed no reduction in energy use, and only a marginal reduction in CO2 emissions.


Jim Scheer, head of data and insights at SEAI said: “The progress we are making in electricity illustrates how replacing fossil fuels with renewable energy leads to emissions reductions – a direct climate action.

“Increased focus is now being given to how to reduce, and eventually eliminate fossil fuels from heating and transport.”

The figures for 2019 show overall CO2 emissions from fossil fuels energy use fell by 4.5 per cent, representing a reduction of 1.76 million tonnes of CO2.

Overall energy use fell by 1.2 per cent while the economy grew by 3.2 per cent, as measured by modified domestic demand.

Energy from renewable sources accounted for 12 per cent of all energy used, up from 10.9 per cent in 2018. Using renewable energy avoided 5.8 million tonnes of CO2 – the majority of which (4.8 million tonnes) was from renewable electricity.

Overall CO2 emissions from electricity generation fell by 12 per cent (1.2 million tonnes of CO2). In 2019 wind supplied one third of all electricity.

Heat energy use fell by 3.1 per cent, mostly due to it being warmer than 2018. CO2 emissions from energy used for heat fell by 4.3 per cent (0.6 million tonnes of CO2).

Transport energy use increased slightly (by 0.5 per cent) but CO2 emissions fell marginally. This was mostly due to increased blending of biofuels with petrol and diesel.

“We have seen significant changes in the patterns of energy use and emissions since the introduction of public health emergency restrictions,” said Mr Sheer.

“However, when we eventually emerge from the necessary restrictions, it’s likely that many of the gains could be reversed.

“The Government has significantly increased momentum on climate action, particularly as an engine of economic recovery. Budgets for Government schemes were significantly increased, additional human resources will be applied to supporting homes and business to get off fossil fuels, and research into new technologies and solutions will be expanded.”

“At SEAI we are working with Government to make sure we deliver significant annual emissions reductions and in the longer-term, realise the full decarbonisation of Irish society.”

Colin Gleeson

Colin Gleeson

Colin Gleeson is an Irish Times reporter