The tenants of one house have now been back in their home for 2 weeks, and we’ve taken a look at their energy use over that period.

Their total energy consumption is averaging at 11.93kWh/day.  At that rate, their annual consumption will be 4,356kWh.  However, the heaters are on at the moment – averaging 2.27kWh/day (pretty low!) – so we’re hoping the annual use will be lower than this, as these will not be on all year.  It will also probably require more heating this winter as the house has been a building site for 6 months, and not able to build up a store of solar energy from the summer.

So how does this compare to their previous energy use?  Well, looking at 18 months of bills prior to the retrofit, they were averaging 3,241kWh/yr of electricity and 18,972kWh/yr of gas.

So down from an annual energy consumption of 22,213kWh to 4,356kWh – not a bad start; long may it continue …