Summary of home energy use

(Graph below covers period 2000-2006) 

  

 

A BRECSU sponsored monitoring programme [New Practice Profile 119] was conducted over the 1st year of occupation only (1998/1999)- something that caused some concern as this was the drying out phase of the buildings. We believed that the data would not fully represent the typical building performance. It was not possible to extend the BRECSU contract but the internal monitoring [started prior to BRECSU] has continued by HHP occupants themselves. The data below is from some earlier (1998-2002)more detailed monitoring of energy use by one of the HHP occupants:

	House
	1	2	3	4	5
Occupation profile
Adults	2	2	1	2	1
Teens	0	0	1	2	0
Children	3	3	0	0	0
Key variability  of facilities between homes
TV[s]	0	1	1	2	0
Heat pump [water]	Yes	Yes	No	Yes	Yes
Home working	Yes	Yes	No	Yes	No
Energy use (average over period – 1998-2002)
kWhr/year	3002	3625	3482	4027	2743
kWhr/day	8.22	9.93	9.54	11.03	7.51
akWhr/m2/year	17.65	21.3	17.5	23.68	16.25
bkWhr/m2/year (internal)	23.69	28.6	23.55	31.78	21.65

 

 

 

 

 

 

 

 

 

 

It is not always clear what elements of a house should be included in the energy use/m2/year

^aThe conservatory and the porch space have been included  because the conservatory space is in use for most of the year as a leisure or work space and consumes energy through the use of power tools, lighting, cleaning and music provision. It is also the bedroom for pet dogs and houses the second WC for the house.

^bCalculation based on area within the primary insulation envelope. If accuracy is wanted you have to factor in the incidental heat gains from the porch and the porch and conservatory into the recorded internal temperatures.