Grocery Store Electricity Costs in Ohio: 2026 Buying Guide

Updated October 15, 2026Ohio Commercial Energy editorial teamHow we review content Book a free 15-min bill review

How much electricity do grocery stores use?

CBECS 2018 puts grocery stores and food markets at about 56.4 kWh per square foot per year, one of the most electricity-intensive building types. The average grocery building uses about 1 million kWh a year.

Illustrative site	Annual use	Est. peak demand	Est. capacity tag	Capacity cost at 2026/27 price	Value of 0.5¢/kWh
12,000 ft²	677,000 kWh	110 kW	99 kW	$11,935/yr (≈1.8¢/kWh)	$3,384/yr
30,000 ft²	1.69 million kWh	276 kW	248 kW	$29,837/yr (≈1.8¢/kWh)	$8,460/yr
50,000 ft²	2.82 million kWh	460 kW	414 kW	$49,728/yr (≈1.8¢/kWh)	$14,100/yr

How these numbers are built: annual use = 56.4 kWh/ft² (EIA CBECS 2018 Table C22, grocery store or food market (mean; median 43.5)). Peak demand assumes a 70% load factor; the capacity tag assumes 90% 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.

Where the electricity goes

Refrigeration is about 48% of food-sales electricity in CBECS — display cases, walk-ins and compressor racks. Lighting and ventilation are around 7% each.

When the load peaks — and why that matters for price

Median operating hours are 98 a week, but refrigeration makes the load nearly flat around the clock. That high load factor means a large share of the bill is energy (kWh) rather than demand, and summer afternoons push compressor head pressure and peak kW up together.

In Ohio's PJM market, the capacity part of your generation cost is set by how much you use during the grid's few highest summer peak hours. With a 70% load factor and about 90% of the site peak landing in those hours, capacity alone works out to roughly 1.8¢ per kWh at the 2026/27 price of $329.17/MW-day — compared with about 0.2¢ at the 2024/25 price of $28.92. That jump, not the energy price, explains most of the 2025–2026 increase in Ohio business electricity bills.

How grocery stores in Ohio buy electricity

Flat, predictable load is exactly what suppliers like to price, so grocery accounts usually get competitive fixed quotes. Many single stores sit near or above the 700,000 kWh/yr mercantile line, which changes aggregation eligibility and gives access to behind-the-meter options under HB 15.

If you…	Usually consider
need a fixed monthly budget	a 12–36 month fixed price with capacity included (fixed vs variable)
can move load away from summer peak hours	a product that passes capacity through at cost, so reducing your capacity tag lowers your bill
use more than 700,000 kWh a year at a site	an interval-data RFP, block-and-index structures, and HB 15's behind-the-meter options
are 700,000 kWh a year or less and never chose a supplier	first check whether you're already in a community aggregation program

Ohio rules that affect this industry

Because refrigeration runs through the summer peak hours that set your capacity tag, grocery stores feel PJM capacity prices directly; ask every supplier to show capacity as its own line.
Supplier choice applies to customers of AEP Ohio, Duke Energy Ohio, AES Ohio, Ohio Edison, The Illuminating Company and Toledo Edison. Municipal-utility and electric-cooperative customers generally can't choose a supplier.
Ohio does not charge sales tax on electricity; the per-kWh excise tax does appear on bills.
As of 2026, Ohio's utilities do not offer general business efficiency rebates, so upgrades must pay back on bill savings (plus any federal tax treatment).
Under HB 15 (effective August 14, 2025), suppliers must send two notices before a fixed-rate contract rolls to a variable rate — but only to accounts with demand of 25 kW or less. Larger sites should track their own expiration dates.

Ways grocery stores cut electricity costs

Add doors to open multi-deck cases and night covers where doors are not practical.
Tune floating head pressure and suction controls on compressor racks, and keep condensers clean before summer.
Convert case lighting and sales-floor lighting to LED with occupancy-based dimming in back rooms.
Review anti-sweat heater controls on case doors; many run continuously when they only need to run in humid weather.

Grocery stores & supermarkets by Ohio metro

Single-site cost models by city and multi-site buying guides by county:

FAQ

How much electricity does a grocery store use?

CBECS 2018 reports an average of about 1 million kWh a year per grocery building and 56.4 kWh per square foot. A 30,000 ft² store would be around 1.7 million kWh a year at that intensity.

What is the biggest electric load in a supermarket?

Refrigeration — about 48% of electricity in EIA’s food-sales category.

Are grocery stores “mercantile” customers in Ohio?

Ohio defines a mercantile customer as a commercial account using more than 700,000 kWh a year (or part of a qualifying national account involving multiple facilities). Many full-size supermarkets exceed that; smaller markets usually do not.

Sources

Operating evidence for the next contract

For grocery stores & supermarkets, an electricity quote should reflect the actual operation rather than a generic business category. Give the reviewer the opening schedule, continuously required systems, planned equipment changes and the responsible legal customer. A national building benchmark can frame a question, but cannot prove the usage or saving at your facility.

Evidence to review	Decision it supports
Current operating schedule and required service levels	Identify whether the quoted load shape represents the next term, rather than last year’s business
Equipment and controls associated with grocery store operations	Separate a procurement question from an engineering or maintenance question
A committed expansion, closure or tenant/ownership change	Review usage tolerance, assignment and site add/delete rights before signing
Written supply inclusions and exclusions	Distinguish an energy-only offer from a product that includes capacity or other components

Separate safe operating changes from price decisions

Use an appropriate facility specialist to validate technical changes. Review anti-sweat heater controls on case doors; many run continuously when they only need to run in humid weather. Treat that as a potential review item, not a guaranteed saving or permission to alter safety-critical settings. Medical, food, process and temperature requirements take precedence over an energy target.

Retain a base case without assumed rebates or unapproved tax benefits. If a project materially changes electricity use, ask the supplier how it affects the contract rather than silently carrying the old consumption profile forward. A lower supply price and reduced consumption are separate effects and should not be counted twice.

Keep the bid review practical

Compare at least the proposed start date, included components, monthly fees, renewal clause, exit rules and the treatment of expected load changes. Ask who is responsible for enrollment and what happens if a meter cannot switch on the expected date. An adviser should be able to explain why staying on the current arrangement may be appropriate.

The browser-only comparison tools keep inputs private. Start an Ohio electricity inquiry with the utility and question, without bills or account identifiers. For the common vocabulary behind the comparison, consult PUCO’s bill definitions.