The components of a commercial electricity rate

Energy and supply-related components

Energy pays for the quantity consumed, typically in kWh or MWh. Other supply-related costs can support resource availability, reliability services, network use, and delivery losses depending on the region and agreement. A supplier may bundle specified items into one unit price or list them separately. A market hub reference commonly covers a narrower wholesale product. Ask for an inclusions schedule showing exactly what is fixed, what passes through, and which contractual events permit changes.

Distribution and demand charges

The delivery utility recovers network and service costs under its tariff. These can include customer charges, kWh-based distribution, kW or kVA demand, riders, and minimums. Demand can be based on a short measured interval, specified time windows, or a look-back rule. A supplier switch does not ordinarily remove those obligations. A load-management project also does not avoid every bill component equally. Read the applicable tariff to identify the marginal cost that a consumption or peak change can actually affect.

Taxes, fees, and comparison boundaries

Taxes can apply to different taxable bases, and supplier fees can be recurring, transaction-based, or contingent on events. An advertised supply-only price should not be compared with total bill divided by kWh as though their scope matched. Build a component matrix across all proposals and the baseline. Use the same dates and consumption. Where an amount is uncertain, show the assumption and scenario range rather than enter zero. This makes the budget auditable and avoids overstating potential savings.

Hypothetical component model

At 50,000 kWh, an illustrative $0.07/kWh energy component is $3,500. Add a modeled $500 capacity item where applicable, $300 transmission, $200 ancillary or other supply items, and $1,500 delivery to reach $6,000 before taxes and unlisted charges. This totals $0.12/kWh for that scope. If a quote already includes the $500, $300, and $200, adding them again inflates the comparison. The invented breakdown demonstrates scope mapping rather than any real regional tariff.

Practical review checklist

• List each proposed component with its unit, quantity basis, rate, and included or excluded status.
• Distinguish supplier energy pricing from utility delivery, demand, taxes, and adjustments.
• Identify fixed treatment, pass-through formulas, fees, true-ups, and contractual repricing exceptions.
• Use matching scope and service periods when calculating a blended rate or projected saving.

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