Part 1 Emission limit values for existing medium combustion plants

United Kingdom

Table 1

Emission limit values (mg/Nm³) for existing medium combustion plants with a rated thermal input equal to or greater than 1 MW and less than or equal to 5 MW, other than engines and gas turbines

Pollutant	Solid biomass	Other solid fuels	Gas oil	Liquid fuels other than gas oil	Natural gas	Gaseous fuels other than natural gas
The value does not apply in the case of plants firing exclusively woody solid biomass.
300 mg/Nm³ in the case of plants firing straw.
400 mg/Nm³ in the case of low calorific gases from coke ovens in the iron and steel industry.
SO₂	200^f1 ^f2	1 100	—	350	—	200^f3
NO_x	650	650	200	650	250	250
Dust	50	50	—	50	—	—

Table 2

Emission limit values (mg/Nm³) for existing medium combustion plants with a rated thermal input greater than 5 MW, other than engines and gas turbines

Pollutant	Solid biomass	Other solid fuels	Gas oil	Liquid fuels other than gas oil	Natural gas	Gaseous fuels other than natural gas
The value does not apply in the case of plants firing exclusively woody solid biomass.
300 mg/Nm³ in the case of plants firing straw.
1 100 mg/Nm³ in the case of plants with a rated thermal input greater than 5 MW and less than or equal to 20 MW.
Until 1 January 2030, 850 mg/Nm³ in the case of plants with a rated thermal input greater than 5 MW and less than or equal to 20 MW firing heavy fuel oil.
400 mg/Nm³ in the case of low calorific gases from coke ovens, and 200 mg/Nm³ in the case of low calorific gases from blast furnaces, in the iron and steel industry.
170 mg/Nm³ in the case of biogas.
50 mg/Nm³ in the case of plants with a rated thermal input greater than 5 MW and less than or equal to 20 MW.
SO₂	200^f4 ^f5	400^f6	—	350^f7	—	35^f8 ^f9
NO_X	650	650	200	650	200	250
Dust	30^f10	30	—	30	—	—

Table 3

Emission limit values (mg/Nm³) for existing engines and gas turbines

Pollutant	Type of medium combustion plant	Gas oil	Liquid fuels other than gas oil	Natural gas	Gaseous fuels other than natural gas
60 mg/Nm³ in the case of biogas.
130 mg/Nm³ in the case of low calorific gases from coke ovens, and 65 mg/Nm³ in the case of low calorific gases from blast furnaces, in the iron and steel industry.
1 850 mg/Nm³ in the following cases: (i) for diesel engines the construction of which commenced before 18 May 2006; (ii) for dual fuel engines in liquid mode.
250 mg/Nm³ in the case of engines with a rated thermal input equal to or greater than 1 MW and less than or equal to 5 MW.
250 mg/Nm³ in the case of engines with a rated thermal input equal to or greater than 1 MW and less than or equal to 5 MW; 225 mg/Nm³ in the case of engines with a rated thermal input greater than 5 MW and less than or equal to 20 MW.
380 mg/Nm³ for dual fuel engines in gas mode.
Emission limit values are only applicable above 70 % load.
20 mg/Nm³ in the case of plants with a rated thermal input equal to or greater than 1 MW and less than or equal to 20 MW.
SO₂	Engines and gas turbines	—	120	—	15^f11 ^f12
NO_X	Engines	190^f13 ^f14	190 ^f15	190^f16	190
NO_X	Gas turbines^f17	200	200	150	200
Dust	Engines and gas turbines	—	10^f18	—	—

Annotations

Footnotes

f1

The value does not apply in the case of plants firing exclusively woody solid biomass.

f2

300 mg/Nm³ in the case of plants firing straw.

f3

400 mg/Nm³ in the case of low calorific gases from coke ovens in the iron and steel industry.

f4

The value does not apply in the case of plants firing exclusively woody solid biomass.

f5

300 mg/Nm³ in the case of plants firing straw.

f6

1 100 mg/Nm³ in the case of plants with a rated thermal input greater than 5 MW and less than or equal to 20 MW.

f7

Until 1 January 2030, 850 mg/Nm³ in the case of plants with a rated thermal input greater than 5 MW and less than or equal to 20 MW firing heavy fuel oil.

f8

400 mg/Nm³ in the case of low calorific gases from coke ovens, and 200 mg/Nm³ in the case of low calorific gases from blast furnaces, in the iron and steel industry.

f9

170 mg/Nm³ in the case of biogas.

f10

50 mg/Nm³ in the case of plants with a rated thermal input greater than 5 MW and less than or equal to 20 MW.

f11

60 mg/Nm³ in the case of biogas.

f12

130 mg/Nm³ in the case of low calorific gases from coke ovens, and 65 mg/Nm³ in the case of low calorific gases from blast furnaces, in the iron and steel industry.

f13

1 850 mg/Nm³ in the following cases:

(i)

for diesel engines the construction of which commenced before 18 May 2006;
(ii)

for dual fuel engines in liquid mode.

f14

250 mg/Nm³ in the case of engines with a rated thermal input equal to or greater than 1 MW and less than or equal to 5 MW.

f15

250 mg/Nm³ in the case of engines with a rated thermal input equal to or greater than 1 MW and less than or equal to 5 MW; 225 mg/Nm³ in the case of engines with a rated thermal input greater than 5 MW and less than or equal to 20 MW.

f16

380 mg/Nm³ for dual fuel engines in gas mode.

f17

Emission limit values are only applicable above 70 % load.

f18

20 mg/Nm³ in the case of plants with a rated thermal input equal to or greater than 1 MW and less than or equal to 20 MW.