This chart shows the split between gas, electricity and other fuels. This helps
the user to understand how much they spend on different energy sources.
If only one energy source is active [e.g. Gas] then the pie chart will show the
split between fixed and variable costs. Depending on the energy source you
should expect to see approximately ten percent of your energy expenditure on
fixed costs and ninety percent on variable costs.
Remember that reducing your energy usage will only reduce your variable costs.
