Battery backup
Store solar energy, manage peak rates and keep essential loads powered during outages.
Explore the Enphase IQ Battery 10C →
Rebates available
Northern California home energy specialists
Take control of your home’s energy.
There are more ways than ever to improve your home’s energy—solar, battery backup, EV charging, smart climate control and intelligent water heating.
California CSLB #1068858 · Based in Gilroy
One experienced teamFrom planning through installation
Built around your homeNo one-size-fits-all packages
Ready for what’s nextScalable, connected energy systems
What we install
Practical energy upgrades for your whole home.
Start with what you need today. We’ll make sure it works with what you may add tomorrow.
Enphase EV charging
An Enphase EV charging system designed to work with your home’s electrical capacity, solar, battery storage and energy controls.
See Enphase bidirectional charging →Cala water heating
An intelligent heat pump water heater that can coordinate with your solar and energy rates.
See why Cala is different →Enphase IQ System Controller 4
Coordinate Enphase solar, batteries and a compatible standby generator for dependable backup during longer outages.
Explore generator-supported backup →Enphase Air
A smart thermostat that coordinates home comfort with your Enphase solar, battery and energy rates.
Explore smarter comfort →Solar power
Right-sized solar designed around your electricity use, roof and long-term plans.
Solar + battery backup
Meet the Enphase IQ Battery 10C.
A compact, all-in-one 10 kWh battery designed to work with Enphase solar and give your home more control over when you use stored energy.
10 kWhusable energy capacity
7.1 kWcontinuous power
Flexiblepartial or whole-home designs
KW Hour Energy designs the solar, battery, meter collar and load strategy around your home. The right number of batteries depends on the appliances and circuits you want available during an outage.
Product image courtesy of Enphase Energy
The next step in home energy
Your EV could become backup power for your home.
Enphase’s upcoming IQ Bidirectional EV Charger is being designed to move energy both ways—charging a compatible electric vehicle and allowing energy stored in that vehicle to support the home.
More than a place to plug in
A standard home charger sends electricity into your vehicle. Bidirectional charging adds the ability to send electricity back out. With the right compatible vehicle and Enphase system, that can make the EV battery another energy resource for the home.
Charge intelligentlyUse solar production or lower-cost electricity when it makes sense.
Support the homeUse energy stored in a compatible EV during an outage or high-rate period.
One connected systemCoordinate the vehicle with Enphase solar, battery storage and home energy controls.
Availability: Enphase has said the IQ Bidirectional EV Charger is expected in the second half of 2026. Vehicle compatibility, utility approval and final product details will determine which homes can use each feature.
Extended backup power
Add generator support to your Enphase energy system.
The Enphase IQ System Controller 4 can integrate a compatible standby generator with solar and battery storage—giving your home another source of power during an extended outage.
Solar, battery and generator—working together
KW Hour Energy can design the Controller 4, batteries, backed-up loads and compatible generator as one coordinated system. The goal is dependable backup without making the homeowner manage separate pieces of equipment during an outage.
Longer outage coverageUse generator power when solar and stored battery energy are not enough.
Automatic transitionsThe system manages changes between grid power and available backup sources.
One complete designMatch the generator, battery capacity and backed-up circuits to the home.
System design matters: Generator model, electrical service, battery configuration and local permitting must be reviewed for compatibility before installation.
Product image courtesy of Enphase Energy
Smart heating and cooling
Comfort that understands your energy.
Enphase Air connects your HVAC system with the Enphase Energy System, using information about solar production, battery status, utility rates and weather to help shift heating and cooling intelligently.
- 01Energy at a glance
See solar, battery, grid and home energy use directly on the thermostat. - 02Solar- and battery-aware
Pre-cool or pre-heat when cleaner or lower-cost energy is available. - 03Built for real homes
Supports many standard 24-volt HVAC systems, including heat pumps and multi-stage equipment.
Product image courtesy of Cala Systems
Now offered by KW Hour Energy
Smarter hot water, built around your life.
Cala learns your household’s hot-water use and adjusts when, how fast and how hot it heats—helping reduce energy use without giving up comfort.
- ✓More usable hot water
Up to 50% more during peak demand, according to Cala. - ✓Solar-aware operation
Can heat when your solar system is producing energy. - ✓App control and insight
Track usage, adjust preferences and boost hot water when needed.
Rebates may lower your project cost
Current incentives for smarter, more resilient homes.
Your available incentive depends on the electricity provider shown on your bill, your address, existing water heater and project details.
For qualifying gas-to-heat-pump replacements, including the limited seasonal bonus through October 31, 2026.
View SJCE details ↗Separate incentives may be available in 13 communities, including Gilroy, Morgan Hill, Sunnyvale and unincorporated Santa Clara County.
Check SVCE incentives ↗3CE customers in Hollister, San Juan Bautista and unincorporated areas may qualify. Program terms change October 1, 2026.
View 3CE details ↗Countywide offer for qualifying installations completed September 1–October 31, 2026. Formerly Peninsula Clean Energy.
View WestLight details ↗Golden State Rebates may provide an instant coupon for qualifying ENERGY STAR-certified smart thermostats. Enphase Air eligibility has not yet been confirmed.
Check qualifying thermostats ↗SGIP's Residential Solar and Storage Equity program may help eligible low-income households install battery storage paired with solar. Funding and project rules apply.
View SGIP eligibility ↗
Check eligibility before work begins.
Keep a recent PG&E bill handy—the electric-generation provider listed on it helps determine the correct program. Application timing, permits, equipment rules and funding vary by provider. SGIP applications must go through an approved developer before installation.
Rebate amounts, deadlines, eligibility and funding can change. Incentives are not guaranteed, and each program makes the final eligibility decision.
The KW Hour difference
Good energy work starts with the right plan.
1
Talk with us
Tell us what you want to improve—cost, backup power, EV charging, hot water or all of it.
2
Get a clear recommendation
We evaluate your home and explain the equipment, cost and expected outcome plainly.
3
We handle the project
Design, permitting, installation and commissioning are coordinated from start to finish.
Local home-energy contractor
Installing home energy management systems across the South Bay and nearby counties.
Based in Gilroy, KW Hour Energy serves homeowners throughout Gilroy, Morgan Hill, San Jose, Hollister and San Juan Bautista, as well as communities across Santa Clara, San Benito and San Mateo counties.
Our services include Enphase solar installation, IQ Battery 10C backup systems, Enphase EV chargers, IQ System Controller 4 generator integration, Enphase Air smart thermostats and Cala intelligent heat-pump water heaters.
Ask about service in your area →Let’s talk energy
What would you like to improve?
Fill out the form and tell us what you’re interested in. We’ll review your request and follow up personally—no call center and no high-pressure sales pitch.
We’re growing
Bring your skills. Let’s build better energy projects together.
If you hold manufacturer certifications or have proven installation experience with Enphase, Cala, solar, battery storage, EV charging, HVAC or electrical systems, we want to work with you.