Methodology
How Energy Cost Check builds its estimates.
Energy Cost Check explains household electricity, gas, and mixed-fuel costs in broad, practical terms. The site does not use live utility account data or real-time tariff feeds, and it does not try to recreate a utility bill line by line.
Editorial Oversight
This page explains what the estimates are based on.
It shows the inputs behind the calculators, the limits of each model, and when readers should stop relying on the site and check official utility information instead.
Publisher
Energy Cost Check Editorial Team, an independent editorial publisher focused on U.S. household energy guidance.
Review trigger
Pages should be reviewed when source direction changes materially, when a calculator explanation needs correction, or when a recommendation no longer matches the published methodology.
Correction path
Questions and correction requests can be sent through the Contact page. Publisher details are listed on the About page, and tracked public fixes can be listed on the Corrections page.
Choose The Right Model
Each calculator answers a different household question.
Electricity calculator
Use this when the main question is whether an electricity bill looks broadly normal for the home profile and region.
Gas calculator
Use this when gas heating, gas water heating, or gas cooking makes winter bills feel high and you need a directional monthly frame.
Dual-fuel calculator
Use this when both electricity and gas matter and you need a practical split before deciding which side of the bill deserves attention first.
What The Model Uses
Inputs are simple on purpose.
Regional proxy
ZIP code is used to place a household into a broad U.S. region. It is not used to identify an exact utility or tariff.
Home profile
Square footage, occupancy, and heating profile are used to move the estimate up or down within a realistic household range.
Usage framing
The homepage quick check uses home size and usage level to create a directional estimate rather than claiming exact consumption.
Electricity Model
Built for all-electric and electricity-heavy households.
Main inputs
ZIP code as a broad regional proxy, square footage, occupancy, and heating profile.
Best use
Pressure-test whether an electricity bill looks broadly normal before assuming something is broken or rushing into a product purchase.
Main limit
It does not estimate gas costs, delivery charges, taxes, or utility-specific rate designs.
Gas Model
Built for heating-month gas questions.
Main inputs
ZIP code, square footage, occupancy, gas-heating setup, water-heating fuel, cooking fuel, and heating-month intensity.
Best use
Frame whether a winter gas bill looks directionally normal before blaming one piece of equipment.
Main limit
It does not estimate electricity costs or utility-specific gas riders, fees, or taxes.
Dual-Fuel Model
Built to split the problem before adding the bill back together.
Main inputs
ZIP code, square footage, occupancy, heating setup, water-heating fuel, cooking fuel, and cooling load.
Best use
Decide whether the household behaves more like an electricity problem, a gas problem, or a genuinely mixed-fuel problem.
Main limit
The combined figure is more useful for directional framing than exact total-bill matching.
What It Does Not Use
The model has clear limits.
No live tariff feeds
The site does not pull live supplier plans, utility account data, delivery charges, taxes, or promotional electricity offers.
No account matching
Users are not asked for account numbers, phone numbers, or billing logins to generate a result.
No guaranteed savings promises
Recommendations are framed as likely areas to investigate, not guaranteed dollar outcomes.
Source Direction
Public U.S. household energy references inform the framing.
EIA electricity use in homes
This source helps anchor how electricity use changes by U.S. region and by home type.
https://www.eia.gov/energyexplained/use-of-energy/electricity-use-in-homes.phpEIA energy use in homes
This source supports broader framing for residential energy use and the role electricity plays in U.S. homes.
https://www.eia.gov/energyexplained/use-of-energy/homes.phpEIA home heating fuel update
This source helps frame how many U.S. households rely on natural gas versus electricity for main space heating.
https://www.eia.gov/todayinenergy/detail.php?id=66324DOE Energy Saver guidance
This source supports common household guidance around efficiency behavior, upgrades, and practical energy-saving actions.
https://www.energy.gov/energysaver/energy-saverENERGY STAR products guidance
This source supports consumer-facing framing around efficient appliances, lighting, thermostats, and home-product categories.
https://www.energystar.gov/productsEnergy Cost Check uses broad public-reference logic consistent with U.S. household energy information such as electricity price patterns, common residential usage behavior, and home efficiency guidance.
The site's goal is not to reproduce those datasets line by line. It is to turn them into a simpler consumer estimate without overstating precision.
Citation Standard
Articles and tools use source direction differently on purpose.
Calculator pages
Tools publish model limits, inputs, and broad source direction. They are designed to be transparent about simplification rather than to imply line-item utility precision.
Guide pages
Articles are written to narrow likely causes and next actions. They cite public-source direction through the methodology, related source families, and published editorial boundaries rather than pretending each paragraph is an account-specific diagnosis.
Product pages
Recommendations are allowed only when the likely cause and use case are already reasonably clear. Product placement is not treated as proof, and no page should imply guaranteed savings from one purchase.
Source-To-Page Map
Different page types lean on different public references.
Electricity and bill-normal pages
Primarily anchored to EIA household electricity and home-use framing, plus the site's own range-model logic and published limitations.
Gas and heating pages
Primarily anchored to U.S. household heating-fuel context, winter-usage framing, and practical leakage/runtime guidance rather than account-level fuel normalization.
Appliance and buyer pages
Primarily anchored to DOE and ENERGY STAR style consumer guidance, appliance running-cost math where relevant, and the site's rule that diagnosis should come before purchase.
How To Read Results
Use the ranges to frame the next step, not to end the investigation.
If the estimate feels close
The bill may be broadly normal for the home profile. Focus on the waste pattern and the next diagnostic step instead of assuming the bill is wrong.
If the estimate feels low
That is the point to compare the result against your actual utility statement, weather, insulation, billing cycle length, and rate design.
If the estimate feels far off
Use the result as a sign that the household may be on the wrong tool, or that an unmodeled issue such as rate structure or equipment condition is doing more than the estimate can show.
Editorial Boundaries
What the site will and will not do.
Will do
Explain estimate logic, show directional bill ranges, cite public source direction, label affiliate links, and point users toward the right next diagnostic step.
Will not do
Claim live tariff precision, pose as a regulated broker, access user billing accounts, or imply guaranteed savings from one product.
How money and editorial work stay separate
Affiliate monetization supports the site, but editorial methodology, page limitations, and source language are published openly instead of hidden behind sales copy.
Contact
Questions about methodology or privacy?
Email: energycostcheck@gmail.com
Address: Unit 82A, James Carter Road, Mildenhall, Bury St Edmunds, IP28 7DE, UK