ANNEX VIEMISSION LIMIT VALUES FOR NOX (MEASURED AS NO2)
A.
NOx emission limit values expressed in mg/Nm3 (O2 content 6 % for solid fuels, 3 % for liquid and gaseous fuels) to be applied by new and existing plants pursuant to Article 4(1) and 4(3), respectively:
Type of fuel: | Limit values25(mg/Nm3) |
|---|---|
50 to 500 MWth: | 600 |
>500 MWth: | 500 |
From 1 January 2016 | |
50 to 500 MWth: | 600 |
>500 MWth: | 200 |
Liquid: | |
50 to 500 MWth: | 450 |
>500 MWth: | 400 |
Gaseous: | |
50 to 500 MWth: | 300 |
>500 MWth: | 200 |
Except in the case of the ‘Outermost Regions’ where the following values shall apply: Solid in general: 650 Solid with < 10 % vol comps: 1 300 Liquid: 450 Gaseous: 350 | |
Until 31 December 2015 plants of a rated thermal input greater than 500 MW, which from 2008 onwards do not operate more than 2 000 hours a year (rolling average over a period of five years), shall:
From 1 January 2016 such plants, which do not operate more than 1 500 hours a year (rolling average over a period of five years), shall be subject to a limit value for nitrogen oxide emissions (measured as NO2) of 450 mg/Nm3. | |
Until 1 January 2018 in the case of plants that in the 12 month period ending on 1 January 2001 operated on, and continue to operate on, solid fuels whose volatile content is less than 10 %, 1 200 mg/Nm3 shall apply. | |
B.
NOx emission limit values expressed in mg/Nm3 to be applied by new plants pursuant to Article 4(2) with the exception of gas turbines
Solid fuels (O2 content 6 %)
Type of fuel | 50 to 100 MWth | 100 to 300 MWth | > 300 MWth |
|---|---|---|---|
Biomass | 400 | 300 | 200 |
General case | 400 | 20028 | 200 |
Except in the case of the ‘Outermost Regions’ where 300 mg/Nm3 shall apply. | |||
Liquid fuels (O2 content 3 %)
50 to 100 MWth | 100 to 300 MWth | > 300 MWth |
|---|---|---|
400 | 20029 | 200 |
Except in the case of the ‘Outermost Regions’ where 300 mg/Nm3 shall apply. | ||
In the case of two installations with a rated thermal input of 250 MWth on Crete and Rhodos to be licensed before 31 December 2007 the emission limit value of 400 mg/Nm3 shall apply.
Gaseous fuels (O2 content 3 %)
50 to 300 MWth | > 300 MWth | |
|---|---|---|
Natural gas (note 1) | 150 | 100 |
Other gases | 200 | 200 |
Gas Turbines
NOx emission limit values expressed in mg/Nm3 (O2 content 15 %) to be applied by a single gas turbine unit pursuant to Article 4(2) (the limit values apply only above 70 % load):
> 50 MWth(thermal input at ISO conditions) | |
|---|---|
Natural gas (Note 1) | 50(Note 2) |
Liquid fuels (Note 3) | 120 |
Gaseous fuels (other than natural gas) | 120 |
Gas turbines for emergency use that operate less than 500 hours per year are excluded from these limit values. The operator of such plants is required to submit each year to the competent authority a record of such used time.
Note 1:
Natural gas is naturally occurring methane with not more than 20 % (by volume) of inerts and other constituents.
Note 2:
75 mg/Nm3 in the following cases, where the efficiency of the gas turbine is determined at ISO base load conditions:
gas turbines, used in combined heat and power systems having an overall efficiency greater than 75 %;
gas turbines used in combined cycle plants having an annual average overall electrical efficiency greater than 55 %;
gas turbines for mechanical drives.
For single cycle gas turbines not falling into any of the above categories, but having an efficiency greater than 35 % - determined at ISO base load conditions - the emission limit value shall be 50*η/35 where η is the gas turbine efficiency expressed as a percentage (and at ISO base load conditions).
Note 3:
This emission limit value only applies to gas turbines firing light and middle distillates.