Metering at a ‘sensible’ level of detail and granularity may be a theoretical no brainer, but in practical terms the need for a sound business case remains in place, says Tim Hooper. There is a great deal of highly effective energy management that can be achieved without any additional meters – the tariff gas meter will often suffice for optimising the space heating in a commercial building for example. But there is a great deal more that can only be achieved with a properly designed sub-metering system in place. It is not a coincidence that the revised more forceful with regard to “Planning for Collection of Energy Data (Section 6.6)” compared to the “Energy Measurement Plan” of the original 2011 version.  Download PDF to read the full article.