Huge electricity consumption in a brand new house

Cardew

hellesangel wrote: »

As I said before, my suspicion is something in the house installation is burning a permanent ca. 500 watts.

As you alluded to earlier, a continuous 500 watts would produce significant heat.


A simple 'owl' type monitor would highlight any significant inaccuracy on your meter. I have both the 'freebie' Eon and BG monitors and there is little discrepancy between their readings and the meter.


If it isn't a metering problem, it must be something to do with your ASHP/immersion heaters and 'central heating reserve' which is presumably a heat store. It is normal for an ASHP feeding that store to trigger a separate immersion heater to boost the water temperature

matelodave

I've got an 11kw Daikin air source heat pump which provides our hot water and most of our heating - we installed a log burner a couple of winters ago which we run in the evenings.


We are at home all day so the HP runs virtually continuously. Everything else is electric, cooking, lighting, washing, drying etc (the tumble dryer gets used for every wash - even in the summer). The 140m2 detached bungalow is 1986 built with old double glazing, decent loft insulation and indeterminate cavity wall insulation.

our worst year 2012 we used around 8500kwh total, last year just over 6000kw.


I'd guess you might use more if you've got two little ones but our average daily (not heating but including hot water is about 8-10kw) = around 3500kwh with the rest. It goes down to about 3.5kwh a day when we are away with just the fridge, freezer, Sky box, router and other data stuff running.


We do monitor our consumption quite closely -have a look here http://www.energyhive.com/dashboard/dave and you can see how it drops overnight when the heating shuts down