Katy, Texas
Your complete local energy guide: electricity rates, solar panels, home batteries, generators, and EV charging. Compare costs, incentives, permits, and find local installation professionals.
Your complete Katy energy guide
Everything you need to find and understand about energy in Katy: what electricity costs, who supplies it, and how solar, home batteries, generators and EV charging fit your home, with local incentives, permits and where to start.
Katy energy dashboard
General information
What every Katy home deals with, whatever you installWhat this means for your home
Short answers, from the local numbersCooling. Katy has about 3,160 cooling degree-days a year against 1,480 for heating (NASA POWER, base 65°F), so air conditioning is the big load. Seal gaps around doors, windows and the attic, shade sun-facing windows, service the air conditioner and move big loads out of your utility’s peak hours.
Texas electricity costs →Rooftop solar in Katy makes roughly 1,360 kWh a year per kW of panels (our estimate from NASA POWER sunshine of 4.65 kWh per square meter per day). CenterPoint delivers power and does not buy it; it says it offers no net metering, so what exported power earns comes from your retail electric provider (some offer buy-back plans). Your installer files the interconnection; you cannot switch on before CenterPoint gives permission to operate. Size solar to what you use at home, or pair it with a battery.
Texas incentives →Drought raises fire and heat risk and strains wells. If you rely on a well pump, include it in your backup plan. FEMA rates Waller County drought “relatively high”.
Get a quote →Katy has 139 public ports at 32 locations, 68 of them DC fast (AFDC, October 2026). Home charging does most of the work.
EV charging stations in Katy →Tell us your project and your city and we match you with a licensed installer who serves your area. It is free, with no obligation.
Request a quote →Tags show the scope of each number: Katy, a whole utility, Texas, or the U.S. Data checked October 21, 2026; sources are listed at the bottom. Utility figures are for the whole utility, not Katy alone. The numbers for each solution are in its own section below, in its own color: solar yellow, battery green, generator red, EV purple.
How we rank: price and outage ranks compare Texas with the other states and D.C. (EIA Electric Power Monthly, July 2026; EIA-861 reliability reports, 2024). Sun: NASA POWER. Public charging: AFDC, October 2026.
Katy electricity providers
Do not assume every Katy home has the same provider. CenterPoint serves homes in Katy. Check the top of your bill, or ask the utility with your address.
In much of Texas two companies appear on your bill: the wires company that delivers power and restores it in an outage, and the retail electric provider you choose to sell it. City-owned utilities and co-ops sell and deliver together, with no choice.
- Type: wires company (you choose your plan).
- Home customers (2024): 2,485,470.
- Price: no retail price: you choose a plan (the Texas average was 15.88 cents in July 2026).
- Outage minutes (2024): 150 normal days, 4,316 with major events.
- Solar export: CenterPoint delivers power and does not buy it; it says it offers no net metering, so what exported power earns comes from your retail electric provider (some offer buy-back plans). Your installer files the interconnection; you cannot switch on before CenterPoint gives permission to operate.
- Programs: CenterPoint’s solar program page lists an incentive of $135 per kW (cap 15 kW) for existing homes in its Houston territory; that page is not recently updated, so ask before you count on it.
Program details are from each utility’s own pages, read October 2026; we have not verified anything we do not state. Statewide: Texas utilities.
Katy electricity rates and average bills
In the retail-choice area you pick your own plan on Power to Choose (fixed-rate, variable-rate, prepaid or time-of-use), so two Katy neighbors can pay different rates; the wires company adds a regulated delivery charge. Where a city utility or co-op serves you, its own rates apply.
| Utility | Price we confirmed |
|---|---|
| CenterPoint | You choose a retail provider and plan; the delivery charge is regulated |
Texas average residential price, July 2026: 15.88 cents per kWh (EIA Electric Power Monthly, preliminary), against 18.31 for the U.S. This state number is not a price for Katy alone.
Why electricity bills are high in Katy
- Cooling. Katy has about 3,160 cooling degree-days a year against 1,480 for heating (NASA POWER, base 65°F), so air conditioning is the big load.
- Heat and long summers. Cooling runs for months across most of Texas, so a big share of the bill is air conditioning.
- Plan details. In the choice area the plan’s monthly charge, bill credits and contract length change what you pay per kWh; compare the Electricity Facts Label.
- Your plan and your home. The rate plan, the size and age of the house, and when you use power all change the bill; compare plans before you assume the price is fixed.
Most of this is cooling or heating and timing, which means a lot of it can be changed. See our guide to what uses the most electricity, and the next section.
How to lower your electric bill in Katy
- Check your rate plan. In the choice area compare plans on Power to Choose, including time-of-use and free-night plans; read the Electricity Facts Label for the monthly charge and contract terms.
- Move big loads out of the peak. Run the dishwasher, laundry and EV charging when power is cheapest on your plan.
- Attack cooling first. Shade windows, seal and insulate the attic and ducts, service the air conditioner and use a smart thermostat.
- Pick efficient equipment. See our guide to lowering your electric bill.
- Size solar to your own use. It saves the most on power you use at home; see the solar section below.
- Add a battery if exports pay little. It moves midday power into the evening peak.
- Charge an EV cheaply. Use the cheap hours on your plan.
We have not put dollar savings on these steps because they depend on your home and plan. Use the calculators in the cost section to test your own numbers.
Power outages and backup power in Katy
In 2024 the average CenterPoint customer lost 150 minutes of power in a normal year (4,316 with major events; EIA-861, whole utility). FEMA rates the biggest risks in Waller County as: drought (relatively high); tornadoes (relatively high); hurricanes (relatively moderate).
- Drought (relatively high): Drought raises fire and heat risk and strains wells. If you rely on a well pump, include it in your backup plan.
- Tornadoes (relatively high): Tornado-season storms cut power quickly. A battery that switches on by itself, or a portable generator ready to go, covers the first night; sirens and weather radios need power too.
- Hurricanes (relatively moderate): Hurricanes can mean a week without power. A standby generator on natural gas or propane, or a battery with solar, beats a stack of gas cans; check flood height before you site equipment.
| Backup option | Best for | Guide |
|---|---|---|
| Portable power station | Phones, internet, a fan and small medical devices | Power stations |
| Home battery | Silent, automatic backup; works with solar | Katy battery guide |
| Standby generator | Multi-day outages and central air conditioning | Katy generator guide |
See also our backup power guide.
Solar panels in Katy
About 1,360 kWh a year from each kW of rooftop panels here (our estimate). What exported power earns depends on your utility; solar pays best when it is sized to what you use at home or paired with a battery.
- Permits come from Permit & Building Services (City of Katy); the utility must approve the connection before you switch on.
Home batteries in Katy
A battery keeps the essentials running in an outage and moves midday power into the expensive evening peak. Heat limits where it can go, and local permits apply.
- It earns the most where evening power costs more than midday power or where a utility pays for sharing it.
Info about Home Battery Installation in KatyGet battery quotes
Backup generators in Katy
A standby generator runs as long as it has fuel, which suits multi-day storms and big loads like central air conditioning. A transfer switch keeps it from feeding power back to the grid.
- Natural gas or propane: a propane tank may need its own permit.
Info about Backup Generator Installation in KatyGet generator quotes
EV chargers in Katy
Most charging happens at home on a Level 2 charger, and your rate plan decides what it costs.
- A licensed electrician installs it, usually with a permit.
Info about Home EV Charger Installation in KatyGet EV charger quotes
Find fueling and charging stations in Katy
Looking for a charger or a fuel pump near you? Each card below opens its own page, with a map that starts on Katy, the station counts, the price of the fuel, how it compares with the others, and what to know before you go. Station data: U.S. Department of Energy, read 2026-10-21.
Station counts: U.S. Department of Energy, Alternative Fuels Data Center, public stations open 2026-10-21.
Not on the map, or something wrong? Submit a new station or report a change to the U.S. Department of Energy, which runs the map.
Katy energy system costs and savings
We could not find verified installed prices for Katy alone, so these are the closest sourced figures, labeled by where they come from. Real quotes depend on your home, equipment and installer.
| Solution | Typical cost (source) | What it can save | Try the calculator |
|---|---|---|---|
| Solar panels | $2.25 a watt in Texas (EnergySage, October 2026); about $13,500 for a 6 kW system (our arithmetic) | Each kW makes about 1,360 kWh a year (our estimate); used at home it saves your retail price per kWh | Solar savings |
| Home battery | About $13,000 for 13 kWh in Texas (EnergySage, before incentives) | Moves cheap midday or night power into the expensive evening; some utilities pay for sharing it | Battery sizing |
| Standby generator | $8,000 to $16,000 installed incl. generator (Generac, U.S.) | No savings; avoids losses in outages | Generator sizing |
| EV charger | About $800 to $3,000 before the charger (EnergySage, U.S. range) | Charging at home costs less than most public fast charging | EV charging cost |
Each guide has a calculator built for Katy: solar, battery, generator and EV.
Rebates, tax credits and financing in Texas (checked October 21, 2026)
| Program | Status | What we confirmed | Source |
|---|---|---|---|
| Federal Residential Clean Energy Credit (25D): solar and batteries | ENDED | Not allowed for expenditures after December 31, 2025; solar or a battery finished in 2026 gets nothing. | IRS |
| Federal charger credit (30C) | ENDED | Not allowed for chargers placed in service after June 30, 2026. | IRS |
| Federal EV purchase credit (30D) | ENDED | Not allowed for vehicles acquired after September 30, 2025. | IRS |
| Texas property-tax exemption for solar (Tax Code 11.27) | ACTIVE | Exempts the value solar adds to your home from property tax; file Form 50-123 with your appraisal district. Texas has no state income tax credit for solar. | Texas Comptroller |
| CenterPoint: solar and programs | CHECK | CenterPoint delivers power and does not buy it; it says it offers no net metering, so what exported power earns comes from your retail electric provider (some offer buy-back plans). Your installer files the interconnection; you cannot switch on before CenterPoint gives permission to operate. CenterPoint’s solar program page lists an incentive of $135 per kW (cap 15 kW) for existing homes in its Houston territory; that page is not recently updated, so ask before you count on it. | See the utility’s own pages |
Financing. You can pay cash, borrow, or lease or sign a power purchase agreement, and each changes who gets any incentive. Ask any company offering a lease who claims what and what you pay in total. Compare the options in our buy versus lease guide.
A generator has never qualified for a federal credit. Rules and amounts change, so check each program page before you count on it, and talk to a tax professional about your own situation. Statewide detail: Texas incentives table.
Compare energy solutions for your Katy home
| Solar panels | Home battery | Standby generator | EV charger | |
|---|---|---|---|---|
| Main purpose | Make your own power | Store power; backup; peak shifting | Make power in an outage | Charge a car at home |
| Typical cost (not Katy quotes) | $2.25 a watt in Texas (EnergySage) | $13,000 for 13 kWh in Texas (EnergySage) | $8,000 to $16,000 installed incl. generator (Generac) | About $800 to $3,000 before the charger (EnergySage) |
| Installation factors | Roof, shade, panel size, utility approval | Location (heat), panel, program rules, permits | Gas line or propane tank, pad, transfer switch, permits | Panel capacity, distance to panel, outdoor rating |
| Operating cost | None; small inverter replacement later | None; may earn utility payments | Fuel while it runs | Electricity |
| Maintenance | Occasional cleaning and checks | Little; app monitoring | Oil and filter, annual inspection, exercise runs | Little |
| Financial benefit | Bill savings, mainly on power used at home | Evening-peak savings, any utility bonus | None; avoids loss during outages | Lower fuel cost than gasoline |
| Backup in an outage | Only with a battery or special inverter | Yes, silent and automatic | Yes, for as long as fuel lasts | No (unless vehicle-to-home equipment) |
| Works well with | Battery, EV | Solar, EV overnight | Battery for short outages | Solar, time-of-use plan |
Common combinations in Katy: solar plus battery for bill savings and backup; battery plus generator for everyday outages and multi-day events; solar plus an EV charger on a time-of-use plan.
Katy energy permits, regulations and installation rules
| Project | City permit office | Utility |
|---|---|---|
| Solar | Permit & Building Services (City of Katy). The city says a building permit is generally required for electrical work. Much of the Katy area is outside city limits and falls under Harris, Fort Bend or Waller County, so confirm which office covers your address. I found no solar-specific page. | Interconnection approval before you switch on |
| Home battery | The same office; ask whether a fire-department or placement rule applies to batteries | Interconnection approval; ask about battery requirements |
| Generator | Electrical permit, and a gas or propane permit where required | Ask the utility about transfer-switch rules |
| EV charger | Electrical permit from the same office | Optional rate plans or rebates |
- City permit page: Permit & Building Services (City of Katy) · 281-391-4830.
- HOAs: Texas law limits what an owners’ association can do to keep out solar panels, though it can set some placement rules (Property Code 202.010).
- Contractors: check the license on the TDLR license search.
- Details and links are on each guide: solar, battery, generator, EV charger. Statewide rules: Texas laws and permits.
Find local energy installers and get quotes in Katy
We do not rank or rate companies. When you compare solar installers, battery installers, generator installers and EV charger installers in Katy, ask each bid to include:
- License: a license you can check on the TDLR license search.
- Sizing to your loads and your rate plan.
- Itemized, written price: equipment models, permits, utility fees and what is excluded.
- Warranty and service: who services the system if the installer closes.
- Permits and inspections: who pulls them, and whether the utility paperwork is included.
Pick what you need, tell us about your home, and we will reply ourselves. Need more than one? Send a request for the first and mention the others in the message. Nothing is shared with an installer unless you choose one. We are lining up independent, licensed installers in the Katy area. Read how it works.
Katy energy FAQs
Which utility serves my Katy home?
It depends on your address. CenterPoint serves homes in Katy. Check the top of your electric bill or ask the utility with your address.
Is solar worth it in Katy?
The sun is strong (about 1,360 kWh a year per kW of panels, our estimate). Texas has no statewide net metering, so what exported power earns depends on your utility or retail provider; solar pays most when sized to your own use or paired with a battery. See the Texas incentives.
Is there a federal tax credit in 2026?
No. The 25D credit for solar and batteries ended for expenditures after December 31, 2025, the charger credit ended after June 30, 2026, and the EV purchase credit ended after September 30, 2025 (IRS). Texas has no state income tax credit for solar; the property-tax exemption (Tax Code 11.27) for the value solar adds to your home is separate.
Should I get a battery or a generator in Katy?
A battery is silent and automatic, works with solar and can save money at the evening peak. A generator keeps running as long as it has fuel and suits multi-day outages. Many homes choose a battery first; see the comparison table above.
How much does home battery installation cost in Katy?
EnergySage’s data shows about $13,000 for a 13 kWh battery in Texas before incentives; local quotes differ.
What do I need to power my air conditioner in an outage?
It takes a large battery system or a standby generator, because starting a central air conditioner needs far more power than running it. Check your unit’s nameplate and consider a soft starter, or back up a window or mini-split unit instead.
How much does a home EV charger install cost?
EnergySage’s U.S. range is about $800 to $3,000 before the charger; your panel and wiring decide your price. In the retail-choice area, compare plans on Power to Choose; some retail providers offer free or cheap nights. Austin Energy lists a charger rebate (up to $1,200 per EnergySage) and Entergy Texas advertises $250; ask your own utility.
Do I need a permit?
Usually yes for all four. Permit & Building Services (City of Katy) handles permits in Katy. The utility must approve any system that connects to your wiring.
Does weather affect solar panels, batteries and generators?
Yes. Panels lose a little output when hot, many batteries reduce power in extreme heat or cold, and generators derate in heat. Pick equipment rated for Katy’s weather.
How do I choose an installer?
Ask for the contractor license number and look it up on the TDLR license search, get itemized written bids, make sure the installer sizes the system to your loads and your rate plan, and check warranty and service. We do not rank installers.
Katy energy resources
- Katy solar panel installation
- Katy home battery installation
- Katy backup generator installation
- Katy home EV charger installation
- Houston metro energy guide
- Sugar Land energy guide
- Houston energy guide
- The Woodlands energy guide
- Spring energy guide
- Pearland energy guide
- Texas energy guide
- Solar savings calculator
- Battery backup calculator
- Generator sizing calculator
- EV charging cost calculator
- DIY solar kits
- Solar generators
- Backup power guide
- Incentives guide
Sources and data checks
About the price and outage numbers at the top of this page: 2024 averages for each whole utility (EIA-861), not your plan or street. Outage time is a normal year without major storms. In the Texas retail-choice area the price shown is the state average, because the wires companies do not sell power.
Each linked guide lists its own sources and the items we could not confirm. We re-check these pages and welcome corrections.
| What | Applies to | Source | Checked | Status |
|---|---|---|---|---|
| Utility prices and outages | CenterPoint (whole utility, 2024) | EIA Form 861 | October 21, 2026 | Verified |
| State price and rank | Texas | EIA Electric Power Monthly | October 21, 2026 | Verified (preliminary) |
| Sunshine and climate | Katy | NASA POWER | October 21, 2026 | Verified (our estimate of output) |
| Hazards | Waller County | FEMA National Risk Index | October 21, 2026 | Verified |
| Public charging and fuel stations | Katy | Alternative Fuels Data Center | October 21, 2026 | Verified |
| Federal credits | U.S. | IRS | October 21, 2026 | Verified |
| City permits | Katy | Permit & Building Services (City of Katy) | October 21, 2026 | Verified page; confirm details |
| Costs | Texas, U.S. | EnergySage; Generac | October 21, 2026 | Verified (not Katy quotes) |
General information, not financial, tax, legal or electrical advice. Estimates are ours and are not promises. See our editorial policy.