Pursuant to Special Condition 8D of our Licence, we have an obligation to investigate in more detail the sources and scale of the emissions caused by operating the gas transmission system. This includes venting from assets other than compressors. This aim is to increase the accuracy of emissions calculations for natural gas vented from a number of different vent types, including venting during the maintenance of pipelines.
We are also investigating alternatives to venting natural gas, which will identify the potential to reduce emissions from assets such as compressors and chromatographs taking into account the prevailing mandatory maintenance requirements.
We have further details on emissions, on our Safety, Sustainability and Reliability pages