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Are you a large user of gas, such as a CCGT power station?  Or, do you depend commercially on metering

systems owned and maintained by others?

Whether your organisation is involved in Oil & Gas production, shipping and transportation, or is a large consumer of gas or oil

- a CCGT power station for example - the accuracy (or otherwise) of the metering systems of other operators that you may be

linked with, can have a direct impact on your financial "bottom line".

It is usually the right of parties with such large financial interests, to attend the calibration and re-certification of other organisation's metering systems, to assure themselves that the systems are being properly maintained and operated so as to be within their design uncertainty.

HMS consultants can attend as expert witnesses and report on this for clients.

Large consumers of gas especially need to ensure their metering is correct. The biggest single cost for any gas fired power station is the fuel gas burnt. Often the metering for this belongs to the supplier or a third party e.g. pipeline operator. It is surprising how some power station operators just assume that the metering is being maintained correctly, and "must therefore be correct" without taking any steps to verify that it actually is.

For an outlay that is truly negligible in relation to the cost of the gas or oil metered over a year, you can be sure that metering validations are carried out correctly by asking HMS to witness the validations or even conduct a full system and maintenance audit.