| The graph below shows
how daily electricity cost has varied over the last few years.
The wide short term variations are partly caused by the irregular
intervals at which I check the meter readings and partly
by usage changes caused by the number of people in the house.
Clearly day time use is still the biggest single element
of cost. Although the peak over Christmas is around the same
as last year the average at what is the highest usage point
in the year looks lower. Despite the large rises in cost total electricity costs are lower in real terms than 2003 apart from December to March 2009 when an extra person was in residence, the costs are now back under control, especially with the recent fall in electricity prices. |