Bill workshop
Compare electricity plans over a full year of real usage
Build a month-by-month electricity comparison that handles seasonal consumption, fixed fees, one-time costs, and uncertainty.
Turn your own usage into a useful cost comparison.
This is the practical side of energy shopping: read a meter-based bill, convert cents to dollars, compare identical usage under two offers, and test whether changing your schedule would make a time-of-use plan worthwhile. Every numerical example is illustrative. The calculators use the numbers you enter and do not retrieve offers or transmit your entries.
Start with the monthly electricity bill walkthrough if your statement feels unfamiliar. Then collect the supply rate, delivery charges, service fees, and billing dates separately. Use the same billing period for both sides of a comparison. A summer cooling month is a useful stress test but is not a substitute for twelve months of usage. Natural gas requires extra attention to units: a volume reading in Ccf is not automatically the same as therms of heat. The gas conversion guide explains where to find the appropriate conversion factor on your own bill.
The workshop also covers electric vehicle charging, appliance running costs, and supplier switching costs. These are arithmetic tools for making assumptions visible, not promises of savings. If your tariff has demand charges, minimum usage rules, multiple time bands, or credits with thresholds, calculate those separately using the actual tariff.

Bill workshop
Build a month-by-month electricity comparison that handles seasonal consumption, fixed fees, one-time costs, and uncertainty.
Bill workshop
Estimate home electric vehicle charging from wall kWh or mileage, account for charging losses once, and compare time-of-use tariffs fairly.
Bill workshop
Convert gas volume to heat using the factor on your statement, then compare per-unit rates and calculate variable and fixed charges.
Bill workshop
Convert watts and operating hours into kWh, choose the relevant electricity rate, and avoid confusing nameplate power with measured consumption.
Bill workshop
Follow billed kWh, meter dates, supply, delivery, account balances, and unit prices in a practical electricity bill walkthrough.
Bill workshop
Calculate switching break-even using monthly savings, cancellation costs, the remaining term, and realistic seasonal usage.
Bill workshop
Use interval kWh and the actual tariff calendar to calculate peak share and test whether a practical schedule change saves money.