Battery Storage – Turn Your Solar Into a Power Plant
Stay powered through outages and keep your energy local
603 Solar offers whole-home solar battery storage using Enphase’s modular energy storage platform. By adding batteries to your solar system, you can maintain power during grid outages and prioritize self-consumption during normal grid operation — storing energy during the day and using it at night.
Seamless Backup Power
No transfer switches, no dimming lights, and no disruption. Enphase batteries transition nearly instantaneously during outages and allow your solar system to continue producing when the grid is down — something standard grid-tied solar cannot do on its own.
Energy Independence
With sufficient battery capacity, you can dramatically reduce or even eliminate dependence on the utility. In some cases, homeowners can operate off-grid by cycling stored solar energy, while still having the option to sell excess production back to the grid when the batteries are full.
Seamless Backup Power
No transfer switches, no dimming lights, and no disruption. Enphase batteries transition nearly instantaneously during outages and allow your solar system to continue producing when the grid is down — something standard grid-tied solar cannot do on its own.
Energy Independence
With sufficient battery capacity, you can dramatically reduce or even eliminate dependence on the utility. In some cases, homeowners can operate off-grid by cycling stored solar energy, while still having the option to sell excess production back to the grid when the batteries are full.
System Specifications (Per Enphase 10C Battery)
- 10 kWh of usable energy storage per unit
- 7.08 kVA continuous output (14.16 kVA peak)
- 29.5 A output current
- Whole-home backup capable
- Modular, expandable architecture
- Direct integration with existing or new Enphase systems
- App-based monitoring and usage control
Benefits of Adding Battery Storage
- Backup power during outages
- Prioritize self-consumption (use your energy first)
- Increase energy independence
- Enable solar operation during grid failures
- Reduce exposure to rising utility rates
- Potential for time-of-use optimization (where applicable)
- Modular capacity for expanding needs
- Silent, clean, and maintenance-free compared to generators
Main Considerations
Capacity & Duration
“How long will my batteries last?” — depends on load and consumption. Larger batteries support longer runtimes, but actual performance varies based on what’s powered (heating, cooling, well pumps, appliances, etc.). Usage can be monitored and controlled through the Enphase app.
Location Requirements
Batteries must be installed in a garage, basement, or detached structure. Fire code requires two-hour fire protection which may require constructing an enclosure unless installed in a finished garage or detached structure. Batteries should be located near the service panel and other solar components for efficiency. Outdoor installation is supported but performance is reduced in freezing climates.
Utility Coordination
Utilities calculate total system output by combining solar + battery capacity, which may trigger service upgrades. Some utilities also offer demand-response incentives that allow them to briefly access battery capacity during peak summer loads, helping offset project costs.
Ideal Battery Storage Customers
- Homes seeking protection from outages
- Homes in rural areas with unstable grid service
- Customers seeking energy independence from utilities
- Solar homeowners who want to maximize self-consumption
- Homes without access to natural gas or propane for generators
- Customers who prefer silent/maintenance-free backup power
FAQs: Solar Battery Storage in NH, MA & ME
What is solar battery storage and how does it work?
Solar battery storage allows your home to store excess energy generated by your solar panels for later use. At 603 Solar, we install Enphase modular batteries that capture solar energy during the day and provide power at night or during grid outages, helping you maximize self-consumption and energy independence.
How long do solar batteries last?
Enphase batteries installed by 603 Solar are designed for long-term reliability, typically lasting 10–15 years depending on usage and environmental conditions. Regular monitoring through the Enphase app ensures your system is performing efficiently throughout its lifetime.
Can I use solar batteries during a power outage?
Yes! Our Enphase battery systems provide seamless backup power, automatically switching on when the grid goes down. Unlike standard solar setups, your lights, appliances, and essential systems stay powered without interruption.
How many solar batteries do I need for my home?
The number of batteries depends on your energy consumption and backup needs. At 603 Solar, we perform a detailed assessment to determine the right combination of Enphase batteries to power your home efficiently, whether for partial backup or full-home energy independence.
Can I add battery storage to an existing solar system?
Absolutely. 603 Solar can integrate Enphase batteries with your current solar setup, converting it into a system capable of storing energy for night use or outages. Our modular approach means you can start with one battery and expand as your needs grow.
What is the difference between a solar battery and a generator?
Solar batteries store clean energy for instant use, are silent, and require almost no maintenance, while generators rely on fuel, create noise, and produce emissions. 603 Solar’s battery systems give you continuous backup power without the hassle and cost of fueling a generator.
How do solar batteries help reduce electricity bills?
By storing excess solar energy, our Enphase batteries allow you to use your own electricity instead of buying from the utility, especially during peak pricing hours. This can reduce your monthly bills and protect you from rising utility rates.
Do solar batteries require maintenance?
Enphase batteries are virtually maintenance-free. 603 Solar ensures your system is set up for reliable performance, and the Enphase app lets you monitor energy usage and battery health in real time without manual upkeep.
What Enphase battery options does 603 Solar offer?
603 Solar offers the Enphase IQ Battery series, including the 10C model, which is modular and scalable. We design your system based on your home’s energy needs, allowing you to expand capacity as requirements change over time.
How much energy can an Enphase 10C battery store?
Each Enphase 10C battery provides 10 kWh of usable energy storage, enough to power essential home loads or even your entire home during short outages. Multiple units can be combined for larger energy needs.
Do Enphase batteries work in freezing outdoor temperatures?
Yes, Enphase batteries can operate outdoors, but cold climates may slightly reduce performance. 603 Solar recommends indoor installations when possible, such as in garages or basements, to optimize efficiency and protect your investment.
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