One of the great benefits of producing your own energy with solar is the potential to keep your essential electrical loads running during short or even extended periods of grid disruption. By adding a battery component to your solar system, you can store excess solar production for when you need it the most.
Why energy storage?
Here are a few questions to ponder before diving head-first down the energy storage rabbit hole:
- How frequently would you need or want to run off your storage system?
- How long do typical power outages last?
- What devices and appliances are essential for you during an outage?
- Will you also have solar or an electric vehicle?
- How much control do you want over individual circuits after the install?
Partial Home
Essential loads vary from home to home, but this often includes refrigerators and freezers, communication devices, and lights. Partial home backup is typically preferred for short-term outages.
Whole Home
Whole home backup is designed to power all appliances and devices during a sustained outage. Your daily usage will determine how much storage you need to provide an adequate supply of electricity during an outage.
Smart Home
Combined with storage, a SPAN smart electrical panel allows you to prioritize in real time where your battery power is needed most. Homes with SPAN typically see their battery duration extended by 40% during an outage.
At Western Solar, we’re always on the lookout for innovative energy solutions that deliver real value to our customers. That’s why we offer a carefully curated lineup of home battery systems—PointGuard, FranklinWH, and Tesla—each selected based on our deep industry experience, rigorous research, and the unique strengths each system brings to the table. Whether you prioritize proven reliability, flexible backup options, or cutting-edge integration and AI, we’ll help you find the right fit for your home and goals.
Basic Specs
- 5 to 38 kWh capacity per stack
- Modular and stackable design
- Optional fast EV charging module
One smart integrated system
PointGuard Home brings together solar, battery storage, EV charging, and smart home energy management into a single, streamlined unit. If you select the AI function, Its built-in AI continuously learns and adapts to your household’s energy habits, optimizing when to store, use, or export power. The result? Greater efficiency, lower energy bills, and a seamless experience that works in the background—so you don’t have to think about it.
Built to grow with you
With modular battery packs ranging from 5 to 38 kWh, PointGuard’s scalable design lets you start small and expand as your energy needs change. Whether you’re adding an EV, growing your household, or simply increasing your energy storage capacity, your system can grow right alongside you. And when the time is right, PointGuard is also generator-ready, allowing you to easily add a generator for backup power and ensure your home remains resilient during outages.
EV charging with backup power in mind
PointGuard doesn’t just charge your car—it’s V2X-ready, allowing you to use your electric vehicle as a backup power source when you need it most. That kind of resilience fits right in with how we think about energy independence.
Basic Specs
- 15 kWh capacity
- Scale up to 225 kWh with additional units
- Compatible with all solar inverters
- Standby and portable generator support
- Vehicle-to-loads (V2L) technology
- Retrofit without modifying existing solar configuration
- 15-year warranty
Great for retrofits
Already have solar? FranklinWH is one of the best energy storage solutions for retrofit applications.
Its AC-coupled design means it integrates smoothly with your existing system — no need to swap out your inverter or rewire your setup. You’ll get the benefits of whole-home backup, seamless generator integration, and the ability to expand storage over time, all while preserving your original solar investment. It’s a future-proof upgrade without the headaches.
Generator integration
FranklinWH stands out with its seamless generator integration—a capability not currently offered by Tesla’s Powerwall 3. With the FranklinWH aGate and Generator Module, your system can intelligently manage multiple power sources, including your generator, solar, battery, and the utility grid.
The system automatically prioritizes clean energy, but when extended outages occur, your generator steps in without a hitch. Through the FranklinWH app, you can even schedule generator usage to preserve fuel and extend backup duration. This smart orchestration ensures your home stays powered—no matter what.
Basic Specs
- 13.5 kWh capacity
- Integrated inverter
- Scale up to 54 kWh total capacity with additional units
- 10-year warranty
- Eligible for PSE Flex Battery Program
Low cost by design
- Integrated inverter and controls require fewer parts for simpler and faster installs
- Effortless battery expansion, now or later, with plug and play energy additions
Durability and reliability
- Engineered to perform at high elevation, humidity, and over a large temperature range
- Intelligently controls its temperature for optimal performance
- Flood resistant and submergible up to 28 inches
Outage protection with instant backup
- Powerwall provides seamless transitions to backup when grid connection is interrupted
- Storm Watch monitors weather data and automatically charges Powerwall if a severe weather event is in the forecast
PointGuard - FranklinWH
- Tesla
PointGuard
Basic Specs
- 5 to 38 kWh capacity per stack
- Modular and stackable design
- Optional fast EV charging module
One smart integrated system
PointGuard Home brings together solar, battery storage, EV charging, and smart home energy management into a single, streamlined unit. If you select the AI function, Its built-in AI continuously learns and adapts to your household’s energy habits, optimizing when to store, use, or export power. The result? Greater efficiency, lower energy bills, and a seamless experience that works in the background—so you don’t have to think about it.
Built to grow with you
With modular battery packs ranging from 5 to 38 kWh, PointGuard’s scalable design lets you start small and expand as your energy needs change. Whether you’re adding an EV, growing your household, or simply increasing your energy storage capacity, your system can grow right alongside you. And when the time is right, PointGuard is also generator-ready, allowing you to easily add a generator for backup power and ensure your home remains resilient during outages.
EV charging with backup power in mind
PointGuard doesn’t just charge your car—it’s V2X-ready, allowing you to use your electric vehicle as a backup power source when you need it most. That kind of resilience fits right in with how we think about energy independence.
FranklinWH
Basic Specs
- 15 kWh capacity
- Scale up to 225 kWh with additional units
- Compatible with all solar inverters
- Standby and portable generator support
- Vehicle-to-loads (V2L) technology
- Retrofit without modifying existing solar configuration
- 15-year warranty
Great for retrofits
Already have solar? FranklinWH is one of the best energy storage solutions for retrofit applications.
Its AC-coupled design means it integrates smoothly with your existing system — no need to swap out your inverter or rewire your setup. You’ll get the benefits of whole-home backup, seamless generator integration, and the ability to expand storage over time, all while preserving your original solar investment. It’s a future-proof upgrade without the headaches.
Generator integration
FranklinWH stands out with its seamless generator integration—a capability not currently offered by Tesla’s Powerwall 3. With the FranklinWH aGate and Generator Module, your system can intelligently manage multiple power sources, including your generator, solar, battery, and the utility grid.
The system automatically prioritizes clean energy, but when extended outages occur, your generator steps in without a hitch. Through the FranklinWH app, you can even schedule generator usage to preserve fuel and extend backup duration. This smart orchestration ensures your home stays powered—no matter what.
Tesla
Basic Specs
- 13.5 kWh capacity
- Integrated inverter
- Scale up to 54 kWh total capacity with additional units
- Eligible for PSE Flex Battery Program
- 10-year warranty
Low cost by design
- Integrated inverter and controls require fewer parts for simpler and faster installs
- Effortless battery expansion, now or later, with plug and play energy additions
Durability and reliability
- Engineered to perform at high elevation, humidity, and over a large temperature range
- Intelligently controls its temperature for optimal performance
- Flood resistant and submergible up to 28 inches
Outage protection with instant backup
- Powerwall provides seamless transitions to backup when grid connection is interrupted
- Storm Watch monitors weather data and automatically charges Powerwall if a severe weather event is in the forecast
Energy storage showcase
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FAQs
Yes! Per IRS.gov: Qualified battery storage technology costs are costs for battery storage technology that is installed in connection with your home located in the United States and has a capacity of at least 3 kilowatt hours.
Nope! The majority of our customers opt for a grid-tied solar system without batteries. They essentially use net metering to “store” excess electricity credit with their utility so they can use it later. Systems without batteries do not provide power during a power outage.