Scope before precision
A rate is published only with its jurisdiction, currency, billing model, effective period, and source. We do not present one household plan as a universal national price.
Evidence register · reviewed 3 August 2026
Electricity sources and review standards
PowerCost Lab uses official or regulator-backed material to establish tariff context. Every rate remains editable because a national or regional reference may not match an individual bill.
Dates remain visible
Tariff records keep effective and access dates. Expired, stale, or insufficiently verified records must not silently remain as calculator defaults.
Facts stay separate
The source establishes the market fact. PowerCost Lab supplies the original appliance model, worked calculation, sensitivity analysis, and explanation of limitations.
Your bill can override
A current bill is usually the best source for the marginal unit rate actually paid. Fixed charges, taxes, time bands, and consumption tiers are kept explicit.
Launch-market register
Official starting points
These links are the authoritative starting points used to understand each market. Calculator defaults are subject to an additional structured verification process.
U.S. Energy Information Administration electricity prices
Retail electricity prices vary substantially by state, utility, customer class, and tariff. Average revenue per kWh is useful context, but your bill's energy rate is the right calculator input.
Open official source ↗Ofgem price-cap unit rates and standing charges
Unit rates and standing charges vary by region, payment method, meter, and tariff. The price cap applies to eligible default tariffs and is reviewed regularly.
Open official source ↗Canada Energy Regulator residential-price comparison
Residential prices and rate structures differ significantly by province and territory. Fixed charges, tiered rates, and time-of-use options can change the effective cost.
Open official source ↗Australian Energy Regulator — Energy Made Easy
Plans can use single, controlled-load, or time-of-use rates, and availability differs by network area and postcode. Daily supply charges are separate from usage rates.
Open official source ↗Commission de régulation de l'énergie — TRVE
Regulated residential tariffs include a subscription charge and one or more per-kWh rates. Base, peak/off-peak, Tempo, supplier, and subscribed-power choices materially change the applicable price.
Open official source ↗Bundesnetzagentur electricity prices and tariffs
Household electricity is sold by competing suppliers and usually combines an energy price with a fixed base charge. Contract, network area, consumption, taxes, and price guarantees affect the result.
Open official source ↗Central Electricity Authority tariff and duty publication
Domestic tariffs are set by states and utilities and commonly use consumption slabs, fixed charges, duties, and subsidies. A single national household rate would be misleading.
Open official source ↗Energy Market Authority regulated tariff
The regulated tariff is revised quarterly, while retail plans may be fixed-price, discounted from the regulated tariff, or time-of-use.
Open official source ↗Dubai Electricity and Water Authority slab tariff
Tariffs differ by emirate, customer category, consumption slab, and applicable fuel surcharge. Dubai's DEWA tariff is not a universal UAE rate.
Open official source ↗National Energy Regulator of South Africa
Charges vary by municipality, distributor, connection type, tariff category, block, and season. NERSA approvals do not translate into one national household unit rate.
Open official source ↗ANEEL tariffs and economic information
Residential tariffs differ by distribution utility and can include energy and network components, taxes, public-lighting charges, and monthly tariff flags. A single Brazil-wide household rate would be misleading.
Open official source ↗Quality control
What happens before a rate is shown
- IdentifyPrefer a regulator, government agency, utility, or official comparison service.
- ScopeRecord jurisdiction, customer class, tariff name, tax treatment, bands, and applicable dates.
- VerifyCheck unit conversion, currency, source access, and whether the figure can honestly serve as a starting reference.
- ExpireRemove the public default when its validity, freshness, or confidence no longer meets the publication threshold.