Commission Regulation (EU) No 601/2012 of 21 June 2012 on the monitoring and reporting of greenhouse gas emissions pursuant to Directive 2003/87/EC of the European Parliament and of the Council (Text with EEA relevance) (repealed) (c. 601)

ANNEX IV U.K. Activity-specific monitoring methodologies related to installations (Article 20(2))

22. Determination of greenhouse gas emissions from the transport of CO₂ by pipelines for geological storage in a storage site permitted under Directive 2009/31/EC U.K.

B. Quantification methodologies for CO₂ U.K.

B.2. Method B U.K.

Each operator shall determine emissions considering all processes relevant to emissions at the installation as well as the amount of CO₂ captured and transferred to the transport facility using the following formula:

Emissions [t CO₂] = CO_{2 fugitive} + CO_{2 vented} + CO_{2 leakage events} + CO_{2 installations}

Where:

Emissions

=

Total CO₂ emissions of the transport network [t CO₂];

CO_{2 fugitive}

=

Amount of fugitive emissions [t CO₂] from CO₂ transported in the transport network, including from seals, valves, intermediate compressor stations and intermediate storage facilities;

CO_{2 vented}

=

Amount of vented emissions [t CO₂] from CO₂ transported in the transport network;

CO_{2 leakage events}

=

Amount of CO₂ [t CO₂] transported in the transport network, which is emitted as the result of the failure of one or more components of the transport network;

CO_{2 installations}

=

Amount of CO₂ [t CO₂] being emitted from combustion or other processes functionally connected to the pipeline transport in the transport network, monitored in accordance with the relevant sections of Annex IV.

B.2.1. Fugitive emissions from the transport network U.K.

The operator shall consider fugitive emissions from any of the following types of equipment:

(a)

seals;

(b)

measurement devices;

(c)

valves;

(d)

intermediate compressor stations;

(e)

intermediate storage facilities.

The operator shall determine average emission factors EF (expressed in g CO₂/unit time) per piece of equipment per occurrence where fugitive emissions can be anticipated at the beginning of operation, and by the end of the first reporting year in which the transport network is in operation at the latest. The operator shall review those factors at least every 5 years in the light of the best available techniques and knowledge.

The operator shall calculate fugitive emissions by multiplying the number of pieces of equipment in each category by the emission factor and adding up the results for the single categories as shown in the following equation:

The number of occurrences shall be the number of pieces of the given equipment per category, multiplied by the number of time units per year.

B.2.2. Emissions from leakage events U.K.

The operator of a transport network shall provide evidence of the network integrity by using representative (spatial and time-related) temperature and pressure data. Where the data indicates that a leakage has occurred, the operator shall calculate the amount of CO₂ leaked with a suitable methodology documented in the monitoring plan, based on industry best practice guidelines, including by use of the differences in temperature and pressure data compared to integrity related average pressure and temperature values.

B.2.3. Vented emissions U.K.

Each operator shall provide in the monitoring plan an analysis regarding potential situations of venting emissions, including for maintenance or emergency reasons, and provide a suitable documented methodology for calculating the amount of CO₂ vented, based on industry best practice guidelines.