UniSource Energy Services (UNS Electric) commercial electricity rates in Arizona

• Average commercial price, 202516.10¢per kWh, all commercial customers
• vs Arizona average+29%state commercial average 12.45¢
• Commercial customers11,7794th largest of 14 in Arizona
• Average use5,107 kWha month per commercial customer
• Average bill$822a month per commercial customer
• Since 2015+53%from 10.54¢ per kWh
• Outages64 mina year per customer · US average 124

UniSource Energy Services (UNS Electric) is an investor-owned utility serving 2 counties in Arizona. Among the 14 Arizona utilities in EIA’s 2025 sales data with 500 or more commercial customers, it is the 4th largest, with about 3.3% of the state’s commercial customers. EIA lists it as UNS Electric, Inc.

UniSource Energy Services commercial electricity prices, 2015 to 2025

In 2015 UniSource Energy Services billed its commercial customers an average of 10.54¢ per kWh. In 2025 the figure was 16.10¢, so it rose 53% over 10 years. The average for all commercial customers in Arizona rose 20% over the same period. The latest year, 2025, is the highest of the 11 on record here. Between 2024 and 2025 it rose 5.7%.

Average use and average bill are the utility’s commercial sales and revenue divided by its commercial customers and by twelve. The bill is an all-in figure: energy, delivery, demand and fixed charges together. A few very large customers pull both averages up, so most businesses use and pay less than the average.

Residential, commercial and industrial prices at UniSource Energy Services

In 2025 the average commercial price at UniSource Energy Services was 5.2% below the residential figure and 21% above the industrial one. Larger customers take power at a higher voltage and use it more steadily, so at most utilities the average falls from residential to commercial to industrial. Which class an account falls in is the utility’s decision, and the line between commercial and industrial is drawn differently from one utility to the next.

How UniSource Energy Services’ commercial rates are set

UniSource Energy Services is investor-owned, so its rates are set in cases before the Arizona Corporation Commission and published in a tariff, which is a public document. A commercial account is billed on a rate schedule, chosen by the size of the account and the voltage it takes power at, and a schedule usually combines a fixed monthly charge, a charge per kWh and, above a certain size, a demand charge on the highest rate of draw in the month. The schedule code is printed on the bill. There is no competitive supply market for ordinary commercial accounts in Arizona, so the levers are the schedule, the peak and the amount used.

Meters, time-varying rates and net metering at UniSource Energy Services

EIA counts 12,218 commercial meters at UniSource Energy Services in 2025, and 11,477 of them (94%) are advanced meters (AMI), which record use at least hourly and report it to the utility at least daily. Of the rest, 731 are automated-reading (AMR) meters, which send a reading to the utility for billing only, and 10 are standard meters. An advanced meter is what makes interval data possible, and interval data is what shows when a building’s peak demand happens.

At UniSource Energy Services, 665 commercial customers were on a time-varying rate in 2025, about 5.6% of its commercial customers. A time-varying rate charges more in some hours than in others, so when a business uses power matters as well as how much. The kinds UniSource Energy Services reports offering commercial customers are time-of-use pricing.

EIA records 269 commercial net-metered generating systems at UniSource Energy Services in 2025, with 19.5 MW of capacity between them: about 23 for every 1,000 commercial customers. Net metering credits a customer for power its own system sends to the grid; the terms are in the utility’s tariff.

How reliable is UniSource Energy Services’ electric service?

UniSource Energy Services customers went without power for an average of 64 minutes in 2025, excluding major storms, with about 0.76 interruptions per customer. The average across U.S. utilities reporting the same way is 124 minutes. With major storms counted the figure was 81 minutes. These are averages over every customer of every class, so they describe the system and not any one street.

Where UniSource Energy Services serves

EIA records UniSource Energy Services serving customers in 2 Arizona counties: Mohave, Santa Cruz. A county can be shared between utilities, so this does not tell you who serves a given address. The utility that serves an address is the one named on its bill.

EIA lists Tucson Electric Power as its balancing authority, the body that keeps supply and demand matched minute by minute across the area.

Other utilities in Arizona

The average each billed its commercial customers in 2025. The Arizona page has the state’s own figures and every utility with 500 or more commercial customers.

• APS (13.45¢)
• SRP (10.85¢)
• Tucson Electric Power (14.77¢)

What these figures can and cannot tell you

• They are averages over every commercial customer. A utility whose commercial customers are mostly large averages fewer cents per kWh than one serving mostly small shops, so a lower figure can mean larger customers and not a lower rate.
• They are not a rate schedule. None of these figures is a charge printed in UniSource Energy Services’ tariff, and nothing here works out a bill from one. The tariff index lists the utilities whose filed schedules are quoted on this site.
• They are annual and final. EIA publishes utility figures once a year. The Arizona page carries the state’s trailing 12 months, which is more recent and still preliminary.

For one building, the cost estimator gives a range by building type, size and state, and price by utility sets every utility side by side. Commercial vs residential vs industrial compares the classes in every state.

Data: every year of these figures, for this utility and every other with a page, is in one CSV, free to use with credit to the U.S. Energy Information Administration and this site. To cite this page: UniSource Energy Services commercial electricity rates, CommercialElectricityRates.com, from EIA Form EIA-861 final 2025 data.

Common questions about UniSource Energy Services

What is the average commercial electricity rate at UniSource Energy Services?

UniSource Energy Services billed its commercial customers in Arizona an average of 16.10¢ per kWh in 2025, according to the U.S. Energy Information Administration. That is 29% above the Arizona commercial average of 12.45¢. It is the utility’s commercial revenue divided by its commercial sales, so it describes the whole class and is not the rate on any one schedule.

How much is the average commercial electric bill at UniSource Energy Services?

About $822 a month in 2025, on average use of about 5,107 kWh a month. That is UniSource Energy Services’ commercial revenue divided by its 11,779 commercial customers. A few very large accounts pull the average up, so most businesses pay less than this.

Have UniSource Energy Services’ commercial electricity rates gone up?

The average UniSource Energy Services billed commercial customers rose 53% between 2015 and 2025, from 10.54¢ to 16.10¢ per kWh. The Arizona commercial average rose 20% over the same period.

How reliable is UniSource Energy Services’ electric service?

UniSource Energy Services customers averaged 64 minutes without power in 2025, excluding major storms, against a 124-minute average for U.S. utilities reporting the same way (EIA).

Does UniSource Energy Services use smart meters for businesses?

EIA counts 11,477 advanced (AMI) meters among UniSource Energy Services’ 12,218 commercial meters in 2025, which is 94%. An advanced meter records use at least hourly, which is what makes interval data and time-varying rates possible.

Is this the rate my business will pay UniSource Energy Services?

No. It is an average over every commercial customer, from a corner shop to a campus. What one business pays depends on its rate schedule, how much it uses and how hard it draws at its peak. The schedule code is printed on the bill, and the schedule itself is in UniSource Energy Services’ tariff.