Bills & Tariffs
An estimated bill is a forecast, and the correction always arrives
When no meter reading has been taken, the figure on the bill is a model of your consumption, and the…
· 4 min read
Bills & Tariffs
Import, export and time-of-use — the pricing that decides the payback.
20 articles · page 2 of 2
Bills & Tariffs
Measuring your own consumption without fooling yourself
Clamp meters, plug monitors and inverter apps all measure something slightly different, and the…
· 4 min read
Bills & Tariffs
Comparing this year against last needs the weather taken out
A year-on-year change in energy use is mostly a change in the weather, and until that is removed the…
· 4 min read
Bills & Tariffs
A unit rate is several separate costs presented as one price
What looks like a single price for electricity is an assembly of wholesale energy, network charges, policy…
· 4 min read
Bills & Tariffs
Fixing an energy price buys certainty rather than a discount
A fixed contract is a hedge sold to a household, and like every hedge it is priced to be profitable for the…
· 3 min read
Bills & Tariffs
Changing supplier is harder once the roof is exporting
A generating household is running two arrangements at the same boundary, and the process that makes…
· 3 min read
Bills & Tariffs
A block of flats is the hardest place to share a solar roof
One array, one roof and many meters is a problem of allocation rather than engineering, and the difficulty…
· 4 min read
Bills & Tariffs
The cleanest hour to use electricity is not always the cheapest
Grid carbon intensity varies through the day for reasons that only partly overlap with price, so optimising…
· 3 min read