House 1 - Summary
Of Electricity Cost Savings
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.
This graph shows the percentage electricity cost saving by comparing costs with October 2003. The dip in December 2004 was caused by a mad moment when I covered the house with fairy lights for Christmas. Part of the saving can be explained by transferring a greater load to run on cheap rate electricity. Despite the massive cost rises over the last few years we are still paying less for electricity compared to 2003. As expected costs peaked again last Christmas.