Home Battery Backup: What We've Learned From Our First System (and What We're Evaluating Next)
Picture this: the lights go out, but you’re still able to keep the refrigerator running, stay connected, and use the appliances your household depends on. That kind of readiness doesn’t happen just because a battery is in the garage. It takes a home battery backup system designed around your home, your loads, and how long you want backup power to last.
At SOL Fence, our journey into whole-home battery backup is just beginning. EcoFlow OCEAN Pro has been our battery partner so far, and the systems we've our partners installed — paired with OCEAN Smart Panels — have earned real enthusiasm from our customers.
We can speak from experience about the EcoFlow systems. Below, we’ll also walk through two other well-known options — the Briggs & Stratton SimpliPHI 6.6 and the FranklinWH system — and what their published specifications tell homeowners.
What a home battery backup system actually does
A whole home battery stores electricity so it’s available later. It can charge from solar, and some systems can also charge from the grid or a generator. When the utility supply is interrupted, a properly configured system can separate your home from the grid and supply power to selected circuits or, if the system is sized and designed for it, more of the home.
There are two common reasons to install solar battery storage. Backup power is there for outages. Daily cycling means storing energy for use later in the day, for example, storing solar production for evening use. A system may be configured for one purpose or both, depending on your equipment, utility rules, and priorities.
It helps to think in two dimensions: power and energy. Power, measured in kilowatts, is how much a system can supply at once. Energy, measured in kilowatt-hours, is how much it can deliver over time. A system might have a large battery but still be unable to start a demanding motor, or it might supply a strong burst of power but not have enough stored energy to run loads for long.
That’s why a realistic plan starts with the loads you want backed up. Refrigeration, lighting, communications, a well pump, heating or cooling, and medical equipment may all matter, but they don’t draw the same amount of power or run for the same length of time. A smart panel can help manage which circuits are supplied and when, but it does not replace the work of matching equipment to household needs.
Whole-home backup capability is determined by the total solar-array size, battery capacity, inverter output, household demand, weather, and the final system design. No product specification alone guarantees that every home can run every appliance during an outage.
If you’re starting to make an outage plan, our home preparedness guide is a useful place to list essential loads and think through your priorities.
The system we know firsthand: EcoFlow OCEAN Pro
Our direct experience so far is with EcoFlow OCEAN Pro and the OCEAN Smart Panel — the system we've worked with to date. Customers tell us they love the technology. The part that stands out in day-to-day use is the system’s visibility and control: the panel is designed to monitor and manage circuits rather than treating the home as one undifferentiated load.
According to EcoFlow’s published specifications, OCEAN Pro starts with 10 kWh of battery capacity, scalable to 80 kWh per inverter, and provides up to 24 kW of continuous output. EcoFlow also lists a 205-amp locked-rotor-amp (LRA) load-start capability. LRA relates to the brief surge a motor may need to start. An important factor for equipment such as pumps and air conditioners.
The OCEAN Smart Electrical Panel 40 can manage up to 40 smart circuits and lists automatic backup switching of 10 milliseconds or less. Circuit-level controls can help users prioritize essential loads or temporarily turn off less important ones to conserve stored energy. In plain terms, it’s like having a traffic
controller for the home’s electricity: the system can direct power where it’s most useful instead of letting every load draw freely.
Those published numbers are useful, but they are not a promise about what any specific home will run. Appliance starting requirements, how many loads operate simultaneously, battery state of charge, and system configuration all matter. An installer should review those details and confirm the final design for your home.
One caveat we think is worth stating plainly: OCEAN Pro is a newer system, so its public operating history is shorter than that of some established brands. Our firsthand experience gives us a beginning perspective, not decades of field history. We’ll keep learning as we see how these systems perform over time.
Two other systems to know: Briggs & Stratton and FranklinWH
A battery’s capacity does not tell the whole story: the paired inverter, transfer equipment, controls, and system design affect how backup power works. With that in mind, here’s what the published product information says about each system.
Briggs & Stratton SimpliPHI 6.6: modular battery capacity
The Briggs & Stratton SimpliPHI 6.6 is a lithium iron phosphate (LFP) battery rated at about 6.65 kWh per unit. The company describes stacking up to three batteries for nearly 19.95 kWh, and up to 18 batteries across six stacks for a published system total of 119.7 kWh.
That modular structure may appeal if you want to expand storage over time. The brand is also familiar to many homeowners through its long history in power equipment. But it’s important to compare the complete system, not just the battery: SimpliPHI 6.6 needs compatible inverter and control equipment, and the paired equipment determines important details such as AC output and backup behavior.
If you’re comparing systems, it’s worth asking about approved pairings, installation requirements, and how the complete setup approaches whole-home backup — not just the battery itself.
FranklinWH aPower: an AC-coupled system for flexible retrofits
FranklinWH’s system pairs an aGate controller with aPower batteries. Its current aPower 2 datasheet lists 15 kWh of usable AC energy per unit, up to 10 kW of continuous real-power output, and up to 15 kW of peak output for 10 seconds. The datasheet also lists a 15-year warranty, subject to its terms.
FranklinWH describes aPower 2 as AC-coupled. That can make it a candidate for some homes adding storage to an existing solar installation, but compatibility and design still need to be confirmed for the specific equipment at the property. Franklin’s documentation also describes generator integration through the aGate system. For a household planning to combine solar, storage, and a generator, that’s an important topic to discuss with a qualified installer.
If you’re considering FranklinWH, good questions to bring to an installer include how the aGate coordinates battery, solar, and generator operation; what a retrofit involves; and which installation details matter most for reliable backup.
How to compare home battery backup systems for your home
There isn’t one universal best whole-home battery. The right fit depends on your household’s loads, whether you’re adding storage to an existing solar system or planning a new installation, whether a generator is part of your plan, and your budget.
As you compare options, ask:
Which circuits can the system back up, and how are they selected or managed?
What is the system’s continuous output, and what short-duration surge can it support?
How much usable energy is available, and how long might your planned loads run?
Can the battery work with your existing solar equipment?
Can a generator be added, and how does the system manage it?
What are the equipment warranties, installation requirements, and service arrangements?
Answers should refer to your actual equipment and the proposed system configuration, not just a general product brochure. It’s also reasonable to ask an installer to explain what won’t be backed up, and what changes to your power use may be needed during an outage.
Where a solar fence can fit
Most homes don't have unlimited space for solar. Roofs can be shaded, oriented the wrong way, or already spoken for — chimneys, vents, dormers, and mature trees all shrink what a rooftop array can realistically do. That's where a solar fence changes things: instead of searching for extra square footage, you use the boundary line your property already has.
A solar fence does double duty. It's the privacy fence you'd want on its own merits — a clean, modern barrier around your yard — and its vertical bifacial solar panels are simultaneously working, collecting sunlight on both sides from morning until evening. The fence you'd install anyway becomes the generation source that helps keep your batteries charged, day after day, without taking up any additional yard or roof space. You're not choosing between a boundary and an energy asset; you're getting both in one structure.
The vertical, two-sided design also gives it a production personality that's different from a roof. Direct sun hits one side, and reflected light reaches the other, so the panels keep gathering light through conditions and seasons when flat, single-sided panels struggle. And when winter comes, there's no snowy roof to climb — the fence sits at ground level, where snow sheds off an upright surface and maintenance stays within easy reach.
Pairing that everyday generation with a home battery backup system is where the picture comes together. The fence produces electricity every day the sun rises; the battery stores it and stands ready for the evening, for cloudy stretches, and for outages. Built as one planned system — fence, battery, inverter, and electrical design chosen to work together — the result is a home that's quieter to run, calmer during outages, and less dependent on whatever the utility does next.
Every property is different, and that's the fun part: the conversation starts with your goals. What do you want to power, for how long, and what role could your property line play in getting there? That's exactly the kind of planning we do with homeowners — and it's why a fence-plus-storage system works so well when it's designed as one project rather than bolted together later.
The bottom line for homeowners
There isn’t one universal best whole-home battery — the right fit depends on your loads, your existing or planned solar equipment, and your goals. Our whole-home backup journey is just beginning, and being clear about what we know, and what we don’t, is part of helping homeowners make informed decisions.
SOL Fence is perfecting this vision in our way: combining solar generation with the practical role a fence already plays on your property. If you’d like to explore whether solar fencing could fit your plans, check availability.
SOL Fence turns property boundaries into energy-generating assets: designed around privacy, power, and your property.
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