Last updated: October 28, 2026 · By Oren Tamir, Founder & CEO, NRG Clean Power
Quick answer: The average U.S. home uses about 28 kWh of electricity per day (863 kWh a month, per EIA 2024 data). The average California home uses far less: about 16.5 kWh per day (503 kWh a month). Anything from 10 to 30 kWh a day is normal for most California households in 2026. Above 30 usually means heavy AC, a pool or EV charging.
Most California homeowners who ask us this question are not worried about kWh. They are worried about a bill. That is the first thing I would tell anyone here: California homes use about 40% less electricity than the national average, yet pay some of the highest bills in the country, because our price per kWh is roughly double. So “normal” usage in California can still mean a painful bill. Knowing your daily kWh is how you find out which problem you have.
Key takeaways
- U.S. average: about 28 kWh per day. California average: about 16.5 kWh per day (EIA, 2024).
- 10 to 30 kWh per day covers most apartments and single-family homes in California.
- Air conditioning, pool pumps and EV charging are the three loads that push a California home above 30 kWh per day.
- Your daily kWh, not your bill total, is the number that sizes a solar and battery system.
Pick your home type, household size and climate to see where your daily use should land.
What is normal daily kWh usage for your home?
Select a household profile to see an illustrative daily electricity-use range, compare it with U.S. and California benchmarks, and estimate what that use could cost each month.
Mid-size home, 3–4 people, mixed climate, without major added electric loads.
Based on 870 kWh/month at the U.S. April 2026 average price.
Where does this profile sit?
The blue band is your illustrative daily use range. The red marker is the profile midpoint.
This profile is close to the latest finalized U.S. average. Your actual bill may still differ significantly based on your local electricity rate and when you use electricity.
How many kWh per day is normal?
A normal home uses 10 to 30 kWh per day. Where you land in that range depends on home size, how many people live there, your climate and which big electric loads you run.
The national benchmark from the U.S. Energy Information Administration is 863 kWh per month per residential customer in 2024, which works out to about 28.4 kWh per day. EIA’s longer-running FAQ puts the 2022 figure at 10,791 kWh per year, or about 29.6 kWh per day. Either way, the U.S. answer is “about 28 to 30.”
Use this table to see where your home sits.
Normal kWh per day by home type
| Daily use | What it usually means |
|---|---|
| Under 10 kWh | Studio or small apartment, mild coastal climate, little or no AC |
| 10 to 20 kWh | Apartment, condo or smaller home, or a low-use household |
| 20 to 30 kWh | Typical single-family home, average household |
| 30 to 45 kWh | Larger home, more occupants, regular AC, electric appliances or an EV |
| 45 to 60+ kWh | Large home with heavy AC, electric heat, a pool or several major loads |
Source: ranges based on EIA residential consumption data and our California installs.
What is the average kWh usage per day in California?
The average California home uses about 16.5 kWh per day. EIA reports 503 kWh per month for the state’s 14.2 million residential customers in 2024, compared with 863 kWh nationally.
There are three reasons California runs low. Much of the population lives in mild coastal climates where AC runs only a few weeks a year. Many homes heat with natural gas, not electricity. And California has more rooftop solar than any other state, so a share of usage never shows up as grid purchases. EIA notes that its sales-based figure can understate real consumption in states with a lot of rooftop solar.
The catch is price. In 2024 California homes paid an average of 31.97 cents per kWh, against 16.48 cents nationally, so the average California bill ($160.86) was higher than the U.S. average ($142.26) even though usage was 42% lower.
Average kWh usage per day by California region
Your territory matters more than the state average. The California Public Advocates Office uses SCE’s climate zones as an example: a typical home in hot inland zone 15 uses about 700 kWh per month (about 23 kWh per day), while a home in cool coastal zone 6 uses about 385 kWh per month (about 12.7 kWh per day), according to its Q2 2026 electric rates report.
California daily kWh by climate
| Region | Typical summer | Typical winter |
|---|---|---|
| Coastal (San Francisco, Santa Monica, coastal San Diego) | 10 to 15 kWh | 10 to 14 kWh |
| Inland valleys (San Fernando Valley, Inland Empire, Sacramento) | 25 to 40 kWh | 12 to 18 kWh |
| Desert and Central Valley (Fresno, Bakersfield, Palm Springs) | 35 to 55 kWh | 14 to 20 kWh |
Source: planning ranges from our California installs, anchored to the Public Advocates Office SCE zone examples above.
What is the average kWh usage per day?
The average kWh usage per day in the U.S. is about 28 kWh, and in California about 16.5 kWh. If you are under 20 kWh a day in California, you are using less than most single-family homes in the state.
The fastest way to check your own number: take the kWh total on your bill and divide by the days in the billing period. A 750 kWh bill over 30 days is 25 kWh per day. Compare it with the same month last year, not last month, because California usage swings hard with the seasons.
How many kWh does a house use?
A house uses about 10,000 kWh a year in the U.S. and about 6,000 kWh a year in California. Per day, that is roughly 28 kWh nationally and 16.5 kWh in California. Size is the biggest driver after climate.
kWh per day by California home size
| Home size | Summer, inland | Winter, inland | Coastal, year-round |
|---|---|---|---|
| 1,000 sq ft | 15 to 22 kWh | 9 to 12 kWh | 8 to 11 kWh |
| 1,500 sq ft | 20 to 30 kWh | 11 to 15 kWh | 10 to 14 kWh |
| 2,000 sq ft | 26 to 38 kWh | 13 to 18 kWh | 12 to 17 kWh |
| 2,500 sq ft | 32 to 46 kWh | 15 to 21 kWh | 14 to 20 kWh |
| 3,000 sq ft | 38 to 55 kWh | 17 to 24 kWh | 16 to 23 kWh |
Source: planning ranges from our California installs, no pool or EV. Add about 10 kWh per day for home EV charging and 8 to 14 kWh per day for a single-speed pool pump (3,000 to 5,000 kWh a year, per the U.S. Department of Energy).
Square footage matters because it drives AC load, not because bigger homes have more light bulbs. A 3,000 sq ft home in Clovis can use three times the summer kWh of the same home in Pacifica.
Is 20 kWh a day a lot? Is 30? Is 50?
20 kWh a day is not a lot. It is above the California average of 16.5 but below the U.S. average of 28. For a single-family home with two or three people, it is normal.
30 kWh a day is a lot for California, normal for the U.S. It is about 80% above the California average. In an inland home in July it is common. On the coast it usually points to an EV, electric heat or an old second refrigerator.
50 kWh a day is high almost everywhere. It means 1,500 kWh a month. At California’s 2026 average of about 34 cents per kWh, that is roughly $510 a month. You see it in large homes with central AC running all afternoon, a pool and an EV.
And 4,000 kWh a month? That is about 133 kWh a day, more than four times the U.S. average. It is typical only of very large homes, homes with electric resistance heat in winter, or properties with a workshop, well pump and multiple EVs.
What uses the most electricity in a California home?
Air conditioning uses the most electricity in most California homes, followed by water heating (if electric), EV charging, pool pumps and laundry. In summer, AC alone can double a home’s daily kWh.
Takeaway: one hot afternoon of central AC adds more kWh than a week of refrigerator use.
- Central AC: a 3.5 kW system running 7 hours on a hot day uses about 24.5 kWh. Use the formula watts x hours / 1,000 from the Department of Energy appliance guide.
- EV charging: most EVs use about 25 to 35 kWh per 100 miles on fueleconomy.gov. Driving 30 miles a day adds about 8 to 11 kWh. See how many kWh it takes to charge a Tesla.
- Pool pump: a 1.5 hp single-speed pump draws about 1.1 kW, so 8 hours is about 9 kWh a day. A variable-speed pump can cut that by half or more.
- Water heating: an electric tank heater uses 8 to 12 kWh a day for a family; a heat pump water heater uses about a third of that.
- Refrigerators: a modern fridge uses 1 to 2 kWh a day. An old garage fridge can use as much as two new ones. Check how many watts a refrigerator uses.
- Phantom load: TVs, chargers, routers and devices on standby typically add 1 to 3 kWh a day.
How do I find my daily kWh on my PG&E, SCE or SDG&E bill?
All three big utilities show daily, and often hourly, usage in your online account. You do not need to do the math by hand.
- PG&E: sign in at pge.com, open Energy Usage Details, and switch the view to daily or hourly.
- SCE: sign in at sce.com, open My Usage (Energy Usage and Cost), and pick the daily view.
- SDG&E: sign in at sdge.com, open My Energy Center, and choose daily or hourly usage.
Every utility also offers Green Button “Download My Data,” which exports 12 months of interval data to a spreadsheet. That file is exactly what we use to size solar and batteries, so it is worth downloading before you get any quote.
Why did my daily kWh go up suddenly?
Most sudden jumps have one of five causes:
- Season. Inland homes can double from April to July on AC alone. Compare the same month a year earlier.
- A new load. An EV, a hot tub, a mini-split or a crypto rig shows up in your daily graph within a day.
- A failing appliance. A pool pump running 24 hours, a stuck water heater element or an AC low on refrigerant can add 5 to 15 kWh a day.
- More people at home. Remote work or a new household member raises daytime use.
- Billing period length. A 35-day bill looks bigger than a 28-day bill. Always divide by days.
If none of these fit, ask your utility to check the meter. Errors are rare, but they happen.
How daily kWh sizes a solar and battery system
Your daily kWh is the starting point for solar sizing. Divide your annual kWh by how much each installed kW produces in your area, and you have your system size.
Here is a worked example. A 1,800 sq ft home in San Jose on PG&E uses 22 kWh a day, or about 8,000 kWh a year. A south-facing system in the Bay Area produces roughly 1,450 to 1,550 kWh per kW per year (NREL PVWatts). So 8,000 / 1,500 = about 5.3 kW to offset annual usage. Under NEM 3.0, exports earn much less than imports, so we usually pair that system with a battery sized to cover the evening peak, about 10 to 13.5 kWh for this home.
Want the full method? See how to size a solar system from your kWh and our home battery storage options. For the month-by-month view, see what is a normal kWh per month, and for the cost side, the average electric bill in California.
Frequently asked questions
No. 20 kWh a day is about 600 kWh a month, which is above the California average of 503 kWh but well below the U.S. average of 863 kWh. For a single-family home with a few people, it is normal.
For California, yes: it is about 80% above the state average. For the U.S., it is roughly average. Inland homes often hit 30 kWh a day in summer because of air conditioning.
Yes. 50 kWh a day is 1,500 kWh a month, which is nearly three times the California average. It usually means central AC, a pool and an EV, and it costs roughly $500 to $520 a month at 2026 California rates.
Air conditioning is the biggest driver in most California homes, followed by electric water heating, EV charging and pool pumps. On a time-of-use plan, when you run those loads matters as much as how much you use.
Yes. 4,000 kWh a month is about 133 kWh a day, more than four times the U.S. average. Only very large homes, homes with electric resistance heat, or properties with several EVs and outbuildings use that much.
Phantom energy is power drawn by devices that are off or idle: TVs, game consoles, chargers, routers and appliances with clocks. It typically adds 1 to 3 kWh a day. Smart power strips cut most of it.
Most one-bedroom apartments in California use 6 to 12 kWh a day. Coastal units without AC sit at the low end. Inland units running window or wall AC in summer can reach 15 kWh a day.
See what your daily kWh means for solar
If you know your daily kWh, you already have the hardest part of a solar quote. We use it, with your utility’s rate plan, to size a system and battery that fit how your home actually uses power. Get a quote in 2 minutes, or book a virtual consultation and we will read your Green Button data with you.