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Emissions of SO2, NOx and particulate matter

The biggest atmospheric pollutants associated with thermal production are sulfur oxides (SO2), nitrogen oxides (NOx), and particulate matter. The emissions are measured on the stack, in most large plants through continuous monitoring systems, in accordance with the requirement of national law.

Compared to 2015 the atmospheric emissions of the three compounds fell in relation to the lower thermal production in 2016 (-8%), and, as part of this, the lower coal production (-16%) compared to the previous year, matched by stable production from gas-fired plant.
The specific atmospheric emission values reflect the trends in total emissions, also in regard to thermal, simple and combined production (electricity and heat from all the production plants). The specific emissions fell in 2016 linked to the lower operation of the coal-fired power plants and the removal from the scope of the plants of Slovenské elektrárne as from August 2016. The most important change regards SO2, down by 23% compared to the previous year, in which there was a peak connected to the operations of less efficient units in Slovakia owing to the temporary closure of some units for maintenance. Specific emissions of NOx fell by 4% compared to the previous year thanks also to the stable activity of the gas-fired plants in the final part of the year. The lowering of the specific value of particulate matter is linked in particular to the optimization of the operation of the three sleeve filters installed at the Reftinskaya plant in 2015. In future years, a gradual reduction in pollutants is expected thanks to a series of interventions at all the generation plant, to align them to best practice in the sector through the installation or improvement of the systems to reduce pollutants including also the gradual closure of less efficient plant.

Specific emissions of SO2, NOx and particulate matter compared to total net production (g/kWheq)

Specific emissions of SO2, NOx

Objectives to 2020

Enel, compared to the data recorded in 2010, has set itself the target of achieving by 2020 the targets for reduced atmospheric emissions assessed on the basis of the results achieved and the planning from the Industrial Plan for the next three years, which will see the mix move towards renewables and a reduction in generation from fossil fuels through a change in the scope of production plant.

Objectives to 2020

Reference SDGs: 
Main actionsTargets
Reduction of SO2 specific emissions-30% by 2020 (vs. 2010) 
Reduction of NOx specific emissions-30% by 2020 (vs. 2010) 
Reduction of particulates -70% by 2020 (vs. 2010)
Reduction of specific water consumption-30% by 2020 (vs. 2010)
Cabling ratio74% by 2019
Reduction of waste produced-20% by 2020 (vs. 2015)
Implementation of biodiversity plan
Continuation of protection of species in the “Red List” of the International Union for the Conservation of Nature and Natural Resources (IUCN) in the protected areas near plants
Circular economy

Adoption of a systematic approach to the circular economy in the Group Launch of project to assess circular economy impacts Coherent application of the principles of
the circular economy to Future-e projects, considering the circular economy as a key factor in developing the projects

Sustainability Plan 2017-2019