SOURCE TESTING ASSOCIATION I Annual Guide 2019
gas and other solid fuels and also for Heavy Fuel Oil (HFO) fi ring on existing small MCPs until 2030, noting that secondary abatement would be required to meet the HFO ELVs. There are also various dust derogations for existing plants fi ring biomass, other liquid and other solid fuels.
Table 3. Boiler/Other Combustion Plant ELVs for NEW plants (mg/m3
)
Natural Gas
NOx SO2
Dust )
100 - -
Other Gaseous
Gas Oil
Other Liquid
Solid Biomass 20
Other Solid
200 200 300 300 300 35 -
20
- 350 200 400 - 20
Table 4. Boiler/Other Combustion Plant ELVs for EXISTING plants (mg/m3
≥ 1 MWth
Natural Gas
NOx SO2
Dust
250 - -
Natural Gas
NOx SO2
Dust
200 - -
to ≤ 5 MWth Other
Gaseous
Gas Oil
Other Liquid
- 50 Solid Biomass 50
Other Solid
250 200 650 650 650 200 - 350 200 1100 -
50
> 5 MWth to < 50 MWth Other
Gaseous
Gas Oil
Other Liquid
Solid Biomass 30
Other Solid
250 200 650 650 650 35 -
30
- 350 200 400 - 30
Engine Emission Limit Values are subject to complex derogations. In broad terms, the NOx ELVs for new plants are 95 mg/m3
for natural gas fi ring and 190 mg/m3 ELV is 190 mg/m3 at 15% O2
fi ring liquid fuels other than Gas Oil and gaseous fuels other than natural gas. Also, dust ELVs for engines fi ring liquid fuels other than Gas Oil.
, dry, 273K, 101.3 kPa. For existing plants, the NOx for all fuels. There are SO2
In geographical zones that are not complaint with the EU’s Ambient Air Quality Directive Member States must assess the need to apply stricter ELVs provided that these would contribute to a ‘noticeable improvement in air quality’. The emission levels associated with best available and emerging technologies must be taken into account when assessing the need for stricter ELVs, following an information exchange with Member States, industry and non-governmental organisations (time-scales unspecifi ed).
The MCPD does allow Competent Authorities to specify continuous monitoring, as an alternative to periodic monitoring, although this would require calibration according to EN 14181 using Standard Reference Methods.
14
for liquid fuel fi ring ELVs for engines
Operators with abatement equipment are expected to defi ne how they will demonstrate that this equipment continues to operate effectively which could, for example, include continuous indicative dust monitoring.
Specifi ed Generator Controls
in the UK The UK government has implemented additional controls on electricity generating plants of less than 50 MWth
. Different
regulatory regimes apply to generator plants based on the criteria set out in Table 5. For the specifi ed generator arrangements, the thermal capacities in Table 5 are based on the aggregated capacity at installation level, i.e., the total site thermal input capacity.
Table 5. Classifi cations under the Specifi ed Generator requirements
Class
Tranche A 1 – 50 MWth
Defi nition
Put into operation before 1st December 2016 or
Subject of a capacity market agreement from 2014 or 2015 or
For which feed-in tariff preliminary accreditation was received before 1st December 2016
Tranche A < 1 MWth
Subject of a capacity market agreement from 2014, 2015 or 2016 or
For which feed-in tariff preliminary accreditation was received before 1st December 2017 or
Which is the subject of an agreement to provide balancing services entered into before 31st October 2017
Tranche B Anything that does not meet any of the requirements of a Tranche A generator
Back-
up plant Exemption
Other relevant
exemptions
Back-up generators (operated for the sole purpose of maintaining power supply at a site during an on-site emergency) operated for the purpose of testing for no more than 50 hours per year
Generators subject to the provisions of Chapter II or Chapter III of the Industrial Emissions Directive
The requirements for Tranche B generators are as follows: • Compliance with a NOx
(at 15% O2 )
• Compliance with the above requirement within 10 minutes where secondary abatements is used
• No persistent emission of dark smoke
emission limit value of 190 mg/m3
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