Find out how the latest Fuel Cost Adjustment affects your electricity bill.
The Fuel Cost Adjustment (FCA) may increase or decrease your bill. It is based on the difference between forecasted fuel prices and actual fuel prices (oil, gas and coal). The Fuel Cost Adjustment is updated every month to reflect the latest fuel price changes.
Fuel Cost Adjustment from 1 July 2025 is 43.1 cents per unit.
Based on the latest Tariff Review, the annual fuel cost adjustment is 46.3 cents per unit. In July 2025, the monthly adjustment is -3.2 cent per unit. Thus, the Fuel Cost Adjustment is 43.1 cents per unit.
You may refer to the last column of the table below for calculation of the monthly adjustment.
Fuel
Projected fuel cost per unit* (cents/unit)
Change in fuel cost per unit sold due to fuel price change (cents/unit)
Coal
5.5
-0.7
Gas
40.7
-2.6
Oil
0.8
+0.1
Monthly adjustment in July 2025
-3.2
Note:
The projected fuel cost per unit* of electricity is based on projections made in the Tariff Review.
The monthly adjustment may not be the exact sum of the last column's figures due to rounding.
The price of nuclear electricity is independent of fuel market movement and therefore no cost adjustment is required.
Log inSee moreSee allMenuHomeSearchDid you meanPageHelp and supportDownload our appBusiness objectivesresults foundAccept and continueStart dateEnd dateEvent typeEnviroment relatedPreferred disciplineFirst PreferenceOther PreferenceProject focusProject codeInternship typePagesHelps and supportCourse durationSelect course durationCourse typeforFilter ByClear allShowing {0} of {1} resultsSort byEarliest start dateOldest start dateInternship start dateInternship end datePlease stay tuned for upcoming openings.CalculateKey in the figures and press calculate buttonTotal Carbon emission(kg/COApprox. number of trees plantedElectricity consumption（units）Bill CalculatorBilling Start DateBilling End DateTariff TypeConsumption Unit(kWh)Number of Billing DaysThe earliest date you can select is the 1st day of previous calendar year.Residential TariffConcessionary Tariff for the ElderlyCalculation DetailsNotes:Charge (HK$)DetailsConsumption PeriodRate (HK$)Large Power TariffLarge Power Tariff with High Voltage Super DemandHigh Load Factor Rider DiscountYesNoOn-Peak Period Unit (kWh)Off-Peak Period Unit (kWh)On-Peak Maximum Demand (kVA)Off-Peak Maximum Demand (kVA)Please select datePlease input Consumption UnitThis bill calculator is meant to calculate electricity charges for previous and current years only.The bill calculator can only calculate the budget electricity bill for up to 90 days.Start Date cannot be later than End Date.Please select Tariff TypePlease select High Load FactorPlease input On-Peak Period Unit (kWh) Please input Off-Peak Period Unit (kWh)Please input On-Peak Maximum Demand (kVA)Please input Off-Pear Maximum Demand (kVA)On or off peak demand, whichever is higher, should not less than 35,000 kVAThis topic is related toCustomer Service centreNoteTipView All10 sec videoAs a , I want toResidential customerBusiness customer No data District Sub-districtRecalculatePlease input Number of Billing DaysConsumption UnitkVAkWhEnergy chargeEnergy saving rebateFuel cost adjustmentConcessionary tariffRent & rates special rebateTotal amountEnergy charge on peakEnergy charge off peakDemand charge on peakDemand charge off peak2022 Special rebate2023 Special energy saving rebateSpecial fuel rebateBilling demand shortfallHigh load factor rider discountSearch Help and SupportLatest updateCustomer Service HotlinesYearMonthJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberDownloadLink copiedresultsSorry, something went wrong. We can't get that information right now. Please try again later.FeedbackHow would you rate the overall website experience today?Please tell us more(optional)Leave us your comments (optional)SubmitBill CalculatorEV TariffEV Residential Time of Use TariffThe earliest date you can select is {0}.The earliest date you can select is the 1st day of previous calendar year.help-supportApplySortingMost RecentMost RelevantTypeFilesWebpagesSectionBusinessResidentialeMobilityCommunityEnvironmentEducation & developmentHelp & supportFiltersFilteringAll PagesAll Types
