Electricity Price Increase Impact Calculator
Calculate annual cost before and after your percentage and per-kWh price increase, plus annual and average monthly differences.
A QUICK WALKTHROUGH
How to use this tool
- Enter annual usage, old unit rate and unchanged daily fee.
- Enter your percentage increase, extra amount per kWh and currency.
- Calculate the new rate and cost changes, then copy or download the report.
Formula and units
New rate=old rate×(1+increase%/100)+extra/kWh. Annual cost=usage×rate+365×daily fee. Annual difference=after−before; average monthly difference=annual difference/12.
Scope
This is a365-day scenario using user inputs only. The monthly difference is one-twelfth of the annual difference, not a monthly meter forecast. Unspecified taxes, discounts, tiers or daily-fee changes are excluded.
Local processing
Inputs stay in your browser. The report includes inputs, formulas and scope.
GOOD TO KNOW
Common questions
Is the monthly amount a forecast of each bill?
No. It is an arithmetic average of the annual cost change; it does not model seasonal usage or billing schedules.