Hamilton County Laundromat Electricity: Multi-Site Guide
Laundromats · Hamilton County, Ohio
Market-reference note: Numerical default-price examples below retain their cited 2026 reference period. They are historical class-level context, not a current account quote. Confirm the applicable business rate, components and effective dates on your bill before comparing an offer. How to establish your benchmark.
Can several laundromats in Hamilton County share one electricity contract?
Every investor-owned-utility site in Hamilton County is on Duke Energy Ohio, so one supplier can price the whole portfolio on a single rate structure.
Rural sites served by an electric cooperative — Butler Rural Electric Cooperative — are in the same position.
Portfolio math for laundromats in Hamilton County
Take an illustrative operator with three smaller and two mid-size locations (2,000 ft² and 3,500 ft²):
| Portfolio measure | Estimate |
|---|---|
| Combined annual use | 159,000 kWh |
| Combined capacity tags | about 31 kW |
| Capacity cost at 2026/27 price ($329.17/MW-day) | about $3,729 a year |
| Illustrative tags at the 2024/25 RTO reference ($28.92/MW-day) | about $328 a year |
| Value of each 0.5¢/kWh in supply price | about $793 a year |
How these numbers are built: annual use = 12.2 kWh/ft² (EIA CBECS 2018 Table C22, 'Other service' (broad group incl. laundromats/dry cleaners, car washes, salons, gas stations, copy centers). Not laundromat-specific.). Peak demand assumes a 35% load factor; the capacity tag assumes 60% of that peak falls in the grid's summer peak hours. Capacity cost uses PJM's 2026/27 clearing price of $329.17/MW-day (about $120 per kW-year) before utility scaling factors. These are illustrations for sizing a decision — your own bills and interval data are what suppliers price.
Utilities and default prices across Hamilton County
| Utility | Small-business default generation price | Cities on this site in the county |
|---|---|---|
| Duke Energy Ohio | Historical class reference: 11.36¢/kWh (effective June 1, 2026) | Cincinnati |
Structuring a multi-site contract
- Master agreement with site schedules. Sign one agreement and list each location on a schedule, so opening or closing a laundromat is an amendment, not a new negotiation.
- Add/delete rights. Ask for the right to add new locations at the contract price (or a formula) and to remove closed locations without penalty up to a set share of volume.
- Aggregate bandwidth. Measure usage tolerance across the whole portfolio rather than meter by meter, so one busy site doesn't trigger true-up charges.
- Co-terminous end dates. Put every site on the same end date so the next bid covers the full portfolio.
- Aggregation exits. Locations at 700,000 kWh a year or less may be in a community aggregation program; confirm how each will be moved to the new supplier and whether any exit terms apply.
Operating issues specific to laundromats
Weekends and evenings are busiest; peaks come when many machines run at once on hot summer weekends.
Across a portfolio, the biggest wins usually come from standardizing settings and comparing sites against each other. For laundromats, that means:
- Replace top-load washers with high-efficiency front-loaders (lower motor and hot-water energy).
- Clean dryer lint screens and exhaust ducts daily to shorten cycle times.
- Convert lighting and signs to LED on timers.
If the business is in a city with opt-out aggregation and you never chose a supplier, check your bill for the aggregation supplier before signing anything.
FAQ
Can a laundromat operator buy electricity for all Hamilton County locations together?
Yes. A supplier can put every shoppable site under one agreement, all priced on Duke Energy Ohio's rate structure.
Which Hamilton County locations can't be included?
Sites served by electric cooperatives (Butler Rural Electric Cooperative) generally can't be enrolled with a retail supplier.
Should a laundromat choose fixed or variable?
Fixed is usually simpler for a small business with thin margins.
Related: Laundromats in Ohio · Hamilton County utilities · single-site laundromat costs in Cincinnati
Decision worksheet: Hamilton County laundromat operations
Do not confuse Hamilton County with Hamilton city
This page concerns Hamilton County, including Cincinnati. The City of Hamilton is in Butler County and has a municipal electric utility. Match each service address and bill utility; never infer Duke service from the word Hamilton alone.
For a laundromat in this market, the useful starting evidence is wash cycles separately from electric or gas drying and water heating. This is a review question, not an assumption that every local facility has the same equipment or schedule. Record what your site actually does, then explain the difference between the historical bill period and the proposed contract term.
| Delivery-utility guide for Hamilton County | Evidence needed before pricing |
|---|---|
| Duke Energy Ohio | Confirm the actual account class and contract; service territory is not the same as a county boundary. |
The local guide is a starting map, not an address-level enrollment determination. Keep utility bills and account identifiers in the private document package, not the initial website inquiry. The Ohio bill guide explains how to identify the delivery and supply companies.
A laundromat review should test these operating questions
- Load separation: identify washers, dryers, water heating and ventilation. Distinguish electricity use from gas, water and other operating costs before comparing a retail electric offer.
- Change case: document replacement machines, dryer fuel changes or extended access hours. Ask the supplier whether that change affects quoted volume, capacity treatment, demand assumptions or the offer’s validity.
- Comparable performance: track electric kWh per wash cycle with water-heating fuel identified. A raw dollar-per-month comparison mixes prices and operations; a unit measure needs the operating context beside it.
- Account responsibility: Does an equipment supplier’s estimate include all utility fuels? Record the responsible party and who can authorize a contract before asking someone to sign.
- Contract fit: Will a refurbishment change the account’s historic load shape? Ask for the answer in the actual agreement or written offer schedule, rather than relying on a sales summary.
Evidence table for the next decision
| Question for this laundromat | Bring this evidence | What a useful answer looks like |
|---|---|---|
| Has the bill risen because of price or operations? | Same-period kWh, peak kW where billed, hours and production/occupancy records | A separation of rate, volume and demand effects; no automatic savings claim |
| Will the next term resemble the last twelve months? | The planned replacement machines, dryer fuel changes or extended access hours | A base case and a change case, with supplier tolerances shown |
| Are supply offers priced on equal terms? | Start dates, included components, additional fees and offer expiry | One comparison matrix that identifies every excluded or adjustable item |
| Is the site free to enroll when proposed? | Current agreement, renewal notice and actual utility confirmation | A documented timeline that avoids an unintended rollover or early-exit charge |
Portfolio review across Hamilton County
Use a separate row for every property rather than one total for the whole business. Start with Cincinnati. A common owner can negotiate a master agreement, but meters still have their own rate classes, delivery utilities, start dates and operational constraints. Do not assume that pooling bills creates a volume discount or makes a municipal meter eligible.
For laundromats, preserve electric kWh per wash cycle with water-heating fuel identified at site level before rolling it into a portfolio dashboard. Otherwise a busy or continuously operating location can hide the cost of an idle one. Align contract end dates only after identifying any early-exit costs, add/delete rights and ownership-transfer provisions.
Turn this into a review request
Use the private comparison and renewal tools for a first pass. They do not submit your figures. If you want help, choose “Offer comparison” or “Renewal planner” on the Ohio inquiry form, identify Hamilton County, and describe the question without account numbers or attachments. A supplier bid follows only if the account and decision support that step.
Primary reference points: PUCO electric-bill definitions, Ohio customer classifications and customer-choice guidance. Operating prompts above are planning guidance, not measured local savings or a claim about a specific customer.
Historical capacity comparison note: $28.92/MW-day is the 2024/25 RTO reference, not the 2024/25 DEOK zonal result. Duke’s DEOK zone cleared higher that year. A wholesale comparison is not the account’s retail tariff or a supplier quote. See PJM auction records.