Should I use kWh or kW when comparing two laundromat locations?

Use both blended $/kWh and demand $/kW because sites on different rate classes bill peaks differently. A store with gas dryers may still show high kWh from electric water heating—about half of commercial laundry primary energy per DOE—while another site with older electric heat or longer 24-hour operation per CLA survey data stacks kWh differently. Normalize each bill with the same formulas before comparing.

Does a lower supplier price guarantee a lower effective rate?

No. Supply contracts change the supply subtotal only. Delivery charges, demand kW charges, taxes, and fixed customer fees still flow through. Calculate supply-only $/kWh before and after a switch, then recalculate blended $/kWh after the first full billing cycle with the new supplier.

How do CLA due diligence norms relate to effective price?

Buyers often request one to three years of bills because utilities represent roughly 20–25% of laundromat revenue nationally with local variation. Computing effective $/kWh and $/kW for each month in that stack reveals whether margins were supported by low blended rates or masked by seasonal demand spikes.

Calculate Effective Electricity Price for Laundromats

Calculating Your Laundromat's Effective Electricity Price

Last reviewed 2026-09-12 by Jaken Energy editorial desk. Next review scheduled 2027-03-12.

Direct answer

Effective electricity price is total electric charges divided by useful denominators: total bill divided by kWh for a blended energy rate, and demand charges divided by billed kW for demand cost. Include delivery, taxes, riders, and customer charges—not just supply kWh rate. Compare the same formula month to month because a laundromat's long hours and water-heating load shape both kWh and peak kW.

Cited: [1] Coin Laundry Association · [2] Coin Laundry Association · [3] U.S. Department of Energy · [4] Oncor · [5] U.S. Energy Information Administration

Keep these

Key takeaways

Blended $/kWh = (total electric bill) ÷ (total kWh)—captures everything billed, not just energy line item rate.
Demand $/kW = (demand-related charges) ÷ (billed kW)—essential when Oncor-style tariffs bill interval peaks.
Separate supply-only math from delivery-only math before evaluating procurement quotes.
Water heating-heavy stores show high kWh even with gas dryers; do not use residential benchmarks.
Use identical billing-period length when comparing effective rates across months.
Effective price explains cash impact; procurement changes supply portion only unless peak kW changes too.

Why the quoted kWh rate is not your real price

Brokers and utilities often discuss an energy rate in cents per kWh. Your bill also carries customer charges, demand charges, delivery riders, taxes, and adjustments. A laundromat running a mean 16.6 hours per day per CLA's 2024 survey accumulates kWh from washers, water heaters, lighting, and HVAC while occasionally setting interval demand when multiple large loads coincide.

Effective price math answers: 'What did I actually pay per unit of use?' That is the figure to compare against prior years or against post-upgrade months when you reduced consumption—not the figure to compare supplier offers alone.

Core formulas

Apply these with numbers taken directly from your bill summary—no invented national averages.

Effective electricity price formulas
Metric	Formula	Use case
Blended $/kWh	Total electric charges ÷ Total kWh	Overall cost intensity for energy use
Demand $/kW	Sum of demand line items ÷ Billed kW	Cost of peak capacity
Supply-only $/kWh	Supply subtotal ÷ kWh	Evaluate REP or supplier bids
Delivery-only $/kWh	Delivery subtotal ÷ kWh	Track regulated wire costs
Daily cost	Total bill ÷ Billing days	Normalize partial months

Worked structure without fabricated totals

Suppose your bill shows 22,000 kWh, billed demand 48 kW, total charges $4,850, demand charges $1,120, and supply charges $2,400. Blended rate = $4,850 ÷ 22,000 = $0.220/kWh. Demand component = $1,120 ÷ 48 = $23.33/kW for that month. Supply-only = $2,400 ÷ 22,000 ≈ $0.109/kWh.

These arithmetic steps use your inputs only. If demand charges are zero because you are on a non-demand schedule, omit the kW formula and note the tariff class. When Pepco-style 30-minute intervals apply at 25 kW and above, a single month's peak drives the kW denominator.

Procurement versus consumption in rate math

Switching supply lowers the supply-only $/kWh if the contract price beats your incumbent. It does not automatically lower delivery $/kWh or demand $/kW. Reducing peak kW through scheduling or equipment stagger lowers the demand component—a consumption and operations lever.

EIA notes retail choice is territory-specific; even after switching, delivery charges from the utility remain on the bill.

Comparison checklist

Before declaring a month 'expensive,' normalize your effective rates.

Use the same number of billing days or convert to daily cost.
Compare to the same calendar month last year for weather alignment.
Split supply and delivery effective rates when both subtotals exist.
Log billed kW alongside kWh to see demand-driven months.
Document rate schedule changes from tariff riders separately from usage changes.

Q & A

Should I use kWh or kW when comparing two laundromat locations?: Use both blended $/kWh and demand $/kW because sites on different rate classes bill peaks differently. A store with gas dryers may still show high kWh from electric water heating—about half of commercial laundry primary energy per DOE—while another site with older electric heat or longer 24-hour operation per CLA survey data stacks kWh differently. Normalize each bill with the same formulas before comparing.
Does a lower supplier price guarantee a lower effective rate?: No. Supply contracts change the supply subtotal only. Delivery charges, demand kW charges, taxes, and fixed customer fees still flow through. Calculate supply-only $/kWh before and after a switch, then recalculate blended $/kWh after the first full billing cycle with the new supplier.
How do CLA due diligence norms relate to effective price?: Buyers often request one to three years of bills because utilities represent roughly 20–25% of laundromat revenue nationally with local variation. Computing effective $/kWh and $/kW for each month in that stack reveals whether margins were supported by low blended rates or masked by seasonal demand spikes.

Sources

CLA Member Survey 2024 — Coin Laundry Association (2024)
Supports: Mean 16.6 operating hours per day
CLA Due Diligence Resources — Coin Laundry Association
Supports: Utilities ~20–25% of revenue; 1–3 years bills
Commercial Laundry Energy Use — U.S. Department of Energy
Supports: Water heating ~50% commercial laundry energy
Oncor Delivery Charges 101 — Oncor
Supports: Delivery cost separation
EIA Retail Choice FAQ — U.S. Energy Information Administration
Supports: Choice is territory-specific; utility delivers

Row of commercial dryer drum openings with a warm heat glow.

Owner desk

Need help reviewing your bills or quotes?

Share your utility territory and contract timing. We provide independent supply-side guidance where your market allows—not utility sales or guaranteed savings claims.

Review My Laundromat Energy Costs