Southern Utah Power Cost Calculator

Nine utilities compared at your own usage, from St. George and Hurricane to PG&E and Edison. Every rate checked against published tariffs and real 2026 bills.

A typical 2,500 square foot home that uses 2,000 kWh per month costs about $181 on Dixie Power, $217 in St. George, $269 in Washington City, and somewhere between $780 and $801 on either of California's two big utilities. Those are not estimates pulled from a comparison site. Every Utah figure comes from the utility's own published rate schedule, and I checked them against real July 2026 bills from customers in St. George, Hurricane, Simi Valley and Bakersfield. The calculator below runs your own usage through all nine.

Your power provider is decided by your address, not by you. And the gap between the cheapest and most expensive utility in Washington County is wider than most people would believe: at high usage it is nearly double, between two cities fifteen minutes apart.

Which utility actually serves your address

This is the part that catches people, and it is worth understanding before you make an offer on a house. Washington County is not served by one power company. It is served by six, and which one you get is determined by where the property sits, not by anything you choose after closing.

St. George City Energy Services covers much of the city, though not all of it. The city's own service history explains that areas south of the Virgin River were already being served by Dixie Power when they were annexed in the 1980s, and Dixie Power kept them. So two houses a few blocks apart, both with St. George addresses, can be on entirely different rate schedules. Hurricane, Washington City and Santa Clara each run their own municipal utility for properties inside their city limits. Dixie Power, an electric cooperative, covers a large share of the unincorporated county along with those annexed areas. Rocky Mountain Power serves much of the rest of Utah.

What the rate schedules actually look like

Five of the six Utah utilities use tiered pricing, where the price per kilowatt hour climbs as you use more. Dixie Power does not, and that single design decision drives most of the difference at the top of the range.

Read the right-hand column and you can predict the whole story. Washington City starts as one of the cheaper options and finishes as the most expensive, because their top tier of $0.17 is roughly fifty percent above anyone else's. Santa Clara does the opposite: they start high and stay nearly flat, which makes them the most expensive utility in the county for a small condo and one of the middle options for a large house. Dixie charges the same rate whether you use 500 kilowatt hours or 5,000, so their advantage compounds the more you use.

Why this all matters more if you are buying a big house

At 810 kilowatt hours, roughly what a condo uses in July, the spread between the cheapest and most expensive Utah utility is about $28 a month. Annoying, not life-changing.

At 6,144 kilowatt hours, which is what my own house pulled in July with a shop, a pool and six air conditioners, the spread is $436 a month. Dixie Power comes to $496 and Washington City comes to $932. Same house, same appliances, same weather, nearly double the bill, decided entirely by which side of a line the lot happens to sit on. Over ten years that is more than fifty thousand dollars.

Nobody discloses this. It is not on the MLS listing, it does not come up at the inspection, and most agents have never looked at it. If you are shopping for something large, or you plan to add a casita, a shop or a pool later, it is worth knowing which utility serves the address before you fall in love with the house. I check it as a matter of course now.

What a move from California actually saves

The honest answer is between roughly 2.6 and 4.9 times, and where you land depends on the same two variables: which Utah city, and how much power you use.

A California household using 2,000 kilowatt hours a month pays about $780 on Edison or $801 on PG&E. That same usage runs $181 on Dixie Power or $269 in Washington City. So the smallest realistic saving is around 60 percent and the largest is close to 80 percent.

What convinced me the comparison is solid is that the two California utilities landed within about twenty dollars of each other despite being different companies in different regions with completely different rate designs. When two independent systems produce nearly the same answer, the answer is probably right. The multiple also holds across every usage level I tested, so it does not depend on picking a flattering example.

One caution for anyone running the numbers on their own move. California baseline allowances vary by climate zone, and many households there are on time of use plans where the price between 4pm and 9pm is dramatically higher than the rest of the day. If your old bill looks different from what this calculator shows, the rate plan is usually why.

Where these numbers come from

Every Utah rate here was taken from the utility's own published schedule or rate page, not from a third-party comparison site. The California rates were pulled from actual customer bills and reconciled line by line against the printed subtotals.

Four real bills were used to check the math. A St. George condo using 810 kilowatt hours and a St. George home using 4,580 both reproduce exactly to the cent under the published city tariff, which is how I know the tier structure and the 800 kilowatt hour breakpoint are right. A Hurricane bill for 6,144 kilowatt hours reconciles against Hurricane's printed tiers. A Southern California Edison bill for 1,046 kilowatt hours, from a household with no solar, reconciles across both the Edison delivery charges and the Clean Power Alliance generation charges.

The Utah figures shown are what the utility charges before tax. On the real St. George and Hurricane bills, the city added a 6.0 percent energy tax and a 3.9 percent sales tax to the electric line, so budget roughly ten percent above what you see here. Rates change, so the verification date on this page matters. I plan to re-check every schedule twice a year.

Common questions about Southern Utah power costs

Which power company is cheapest in Washington County, Utah?

Dixie Power is the cheapest for almost any household above about 1,500 kilowatt hours a month, because they charge a flat rate with no tiers. At 2,000 kilowatt hours Dixie comes to roughly $181 against $217 in St. George and $269 in Washington City. For very low usage the picture narrows and St. George City is competitive, since their first 800 kilowatt hours are priced at $0.077582, the lowest first-tier rate in the county.

Which Southern Utah utility is the most expensive?

It depends on how much you use, which is why a single answer misleads. Santa Clara City is the most expensive for small users because their rates start at $0.10693 and stay nearly flat. Washington City becomes the most expensive above roughly 1,500 kilowatt hours a month, because their top tier reaches $0.170 per kilowatt hour, about fifty percent higher than any other utility in the county.

How much cheaper is power in St. George than in California?

Roughly three to four times cheaper for a St. George address, and up to nearly five times cheaper on Dixie Power. A 2,000 kilowatt hour month runs about $217 in St. George against $780 on Southern California Edison and $801 on PG&E. Both California figures come from real July 2026 bills. The saving grows as usage climbs, because California's upper tiers are far steeper than Utah's.

Can I choose my electric company in St. George?

No. Your provider is determined by the address. St. George City Energy Services serves much of the city, but areas south of the Virgin River were already served by Dixie Power when they were annexed in the 1980s and remain on Dixie. Hurricane, Washington City and Santa Clara each operate their own municipal utility inside their city limits. This is worth checking before you buy, because it is not disclosed anywhere in a normal transaction.

Why is my Washington City power bill higher than my neighbor's in St. George?

Because Washington City's rate structure climbs much faster. Their fourth tier, everything above 1,500 kilowatt hours a month, is priced at $0.170 per kilowatt hour, while St. George charges $0.107120 above 800. At 4,580 kilowatt hours that difference works out to about $189 a month on identical usage. The gap widens the more power you use.

Do Utah power bills include taxes?

The rates shown on this page are before tax. On the real St. George and Hurricane bills I checked, the city added a 6.0 percent energy tax and a 3.9 percent sales tax to the electric portion, so the practical multiplier is about 1.099. Utah municipal bills also usually combine water, sewer, garbage and storm drainage on the same statement, which is why the total looks larger than the power figure alone.

Want help checking an address before you buy?

I have been selling real estate in Southern Utah for thirteen years and have closed more than 275 sales. Which utility serves a property, what it will cost to run in July, and whether the lot can support what you want to add later are all things worth knowing before you write an offer, and none of them show up on a listing sheet.

If you are weighing a move, start with the St. George market summary for current prices and inventory, or browse St. George homes for sale. Buyers looking at larger lots and shops often end up comparing against Hurricane Valley, while people downsizing tend to look at condos and townhomes or an adult community. If you are building rather than buying, the new construction page is the place to start.

Call or text me at 435-200-5508, or send me a message and I will tell you which utility serves any address you are considering.