This paper analyses the financial viability of the application of
The falling prices of solar collectors, and the relatively high set cost of installation, allows for excess solar collectors to be added at minimal extra cost thereby significantly increasing the Solar Fraction (SF) of DHW and space heating of a low-energy house, reducing significantly the carbon derived LY 2389575 demand. Surplus heat generated in summer can be fed to a Seasonal Thermal Energy Store (STES) allowing surplus summer heat to be used in the winter .
While much has been written on large communal STES (for example ,  and ) consideration also needs to be given to STES for single dwellings such as that in this study. There are a number of countries in which the largest proportion of newly constructed houses are element detached dwellings such as in Ireland where 54.2% (2010), 62.3% (2011), 61% (2012), 57% (2013) of new build are detached , as has been referred to by other studies e.g. Ref. .
A number of papers have focused on the analysis of STES systems in combination with low Energy houses through the use of dynamic building simulation software such as TRNSYS (e.g. Refs. ,  and ), a number of which also undertook financial analysis. However, few examples exist of a financial analysis based on recorded costs and monitored performance of an installation.