DECC’s latest ‘NEED’ report, published on 21 November 2013, “provides updated estimates of the impact of installing energy efficiency measures on a household’s gas consumption for measures installed in 2010. It covers the impact of installing individual measures, for example cavity wall insulation, and the impact of installing a combination of energy efficiency measures, for example a new boiler and loft insulation.”
This is the second of two NEED reports published in 2013. Part I, published in July, presented analysis of domestic gas and electricity consumption by property attribute and household characteristics.
Source: DECC, National Energy Data-Framework (NEED), Part II Impact of energy efficiency measures in homes, 21 November 2013