Battery Storage · Charleston & the Lowcountry
Keep the lights on with
solar battery storage.
Store the power your panels make and keep critical circuits running when the grid goes down, sized to your home and installed by one local team.
Is a home battery worth it in South Carolina?
Usually for one of two reasons, and they are worth separating. Economically, a battery captures the gap between what your utility charges you and the lower rate it credits for exported power, which widened for new customers after 2021. Practically, it keeps essential circuits running through an outage. We size for essentials across a couple of days rather than for running central air through a multi-day storm, which is a far larger and more expensive system.
The real problem
Outages, rising rates, and a utility that pays you back at pennies
Lowcountry hurricane season means multi-day outages, and it only takes one downed line to lose everything in the fridge. Meanwhile South Carolina utilities have moved to time-of-use and net-billing structures, Duke, Santee Cooper, and others credit the excess solar you export at well below the retail rate you pay to buy it back at night.
A standard grid-tied system actually shuts off in an outage for utility-worker safety, so panels alone won’t keep your lights on. A battery changes the math: you store what your panels make, use it when rates are highest or when the grid is down, and stop handing cheap power back to the utility. We’ll tell you honestly whether that trade-off makes sense for your home, no guaranteed-savings pitch.
We handle everything
From first question to switched-on, one accountable local team
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Free assessment & battery sizing
We review your usage, your critical loads (fridge, medical equipment, Wi-Fi, well pump), and your utility’s rate structure, then right-size a battery to your real backup goals, not a one-size box off a shelf.
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Permitting, utility & HOA, handled
We pull permits, file the utility interconnection (Dominion, Duke, Santee Cooper, or your co-op), and prepare the HOA architectural-review packet where it’s needed. You don’t chase paperwork; we do.
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Professional installation
Our experienced teams install the battery and tie it to a critical-loads panel with automatic switchover, so backup kicks in the moment the grid drops, no manual steps.
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Activation & monitoring
We commission the system, walk you through the monitoring app, and stay reachable long after it’s live so you can see exactly what’s charged and what’s protected.
That includes the parts that stall projects, the utility interconnection, permitting, and HOA sign-offs. See how we handle HOA solar approval, or what our lifetime warranty covers.
Honest numbers
What it costs, and what brings it down
There’s no honest fixed price for a battery. Here are the real drivers and the 2026 incentives you actually qualify for.
What drives the price
Usable capacity (how many hours and which circuits you want to back up), whether you’re adding one battery or stacking several, and the electrical work to add a critical-loads panel. We size to your backup goals, not our margin.
2026 incentives in South Carolina
A battery paired with solar can fall under South Carolina’s 25% state tax credit (up to $3,500/year, carried forward up to 10 years), plus property- and sales-tax exemptions. The federal residential credit ended in 2025, we won’t pretend otherwise. Eligibility depends on your project; we’ll point you to a tax professional. See financing & incentives →
Pairs with new or existing solar
Adding a battery to a system you already own is common, and battery-plus-solar is often the strongest resilience play in Duke and Santee Cooper territory where export credits are low. A free assessment gives you real numbers for your home.
Why homeowners add a battery
Power you keep, on your terms
One local team sizes, installs, and stands behind the whole system, so your backup is something you can count on, not a gadget on the wall.
- Backup during outagesWhen the grid goes down, your critical circuits keep running on the energy your panels already made, automatically, no manual switch.
- Real energy independenceStore your daytime solar and use it at night or during peak rates, instead of buying it back from the utility at retail.
- Pairs with solar, new or existingAdd it to a system you already own or design it in from day one, all backed by our lifetime full-system + roof-penetration warranty.
Two reasons to buy a battery, and they are not the same
Backup when the grid fails
People buy storage for resilience or for economics, and conflating the two is how batteries get oversold. Resilience is about keeping specific circuits alive through an outage. Economics is about storing your own generation to use later instead of exporting it cheaply. A battery sized for one is not automatically right for the other, and a quote that blends both into a single savings figure is hiding which one you are paying for.
Self-consumption economics
We quote them separately for that reason. If the resilience case is what you want, the honest question is which circuits matter and for how long: a fridge, a well pump, some lighting and a router for a day is a very different specification from running the whole house including air conditioning.
If the economic case is what you want, the number that decides it is the gap between what you pay for power and what you are credited for exports. Where that gap is wide, storing your own generation is genuinely valuable. Where exports are credited close to retail, a battery has much less economic work to do, and we will say so.
Where storage earns its place in our territory
Georgia is where the economic case is strongest, because exported power earns roughly 7.2 cents per kilowatt-hour against a retail rate near 13 cents. Every kilowatt-hour a battery keeps on site instead of exporting is worth close to double. A Georgia system designed without considering storage is leaving that gap on the table.
Virginia is the opposite end. One-for-one retail net metering means the grid already credits exports at full retail, so the economic argument for storage is much weaker and the resilience argument has to carry it on its own. That is a perfectly good reason to buy one; it is just a different reason, and it should be priced as such.
South Carolina sits between the two and varies by provider, which is the recurring theme across this site. Coastal storm exposure also makes the resilience case more concrete on the Lowcountry and Grand Strand than it is inland, independent of any arithmetic.
What a battery will not do
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It will not fix a bad solar system
It will not make an undersized or badly sited solar system work. Storage moves energy in time; it does not create it. If the array is shaded or too small, adding a battery adds cost without addressing the actual constraint.
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It will not run the whole house indefinitely
It will not run your whole house indefinitely. Backup capacity is finite and air conditioning in a Lowcountry August consumes a great deal of it. Deciding in advance which circuits are backed up is part of the design, and the honest version of that conversation involves trade-offs rather than a reassurance.
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It will not necessarily pay for itself
It will not necessarily pay for itself. In some configurations and some territories it will; in others the resilience is the product and the economics are secondary. We would rather be explicit about which of those you are buying than produce a projection that quietly assumes the flattering one.
Who actually does the work
Battery storage FAQ
The questions we hear on almost every call
How long will a battery keep my house running during an outage?
It depends on your battery’s usable capacity and what you’re powering. Most homeowners back up essentials, fridge, lights, Wi-Fi, a few outlets, which stretches runtime much longer than trying to run the whole house, including AC. During your assessment we map your critical loads so you know realistically what to expect, not a marketing number.
Can I add a battery to my existing solar system?
Usually, yes. Many systems can be retrofitted with a battery and a critical-loads panel. We check your existing inverter and setup during a free assessment and tell you honestly whether it’s a clean add-on or needs extra equipment.
Do I need solar to get a battery?
No. A battery can be installed on its own to back up your home from the grid, though pairing it with solar lets you recharge from your own panels instead of only from the utility. We’ll walk through both options based on your goals.
What batteries do you install, and what’s the warranty?
We install proven whole-home battery systems and match the right one to your home rather than pushing a single brand. Every install is backed by our lifetime full-system + roof-penetration warranty, on top of the manufacturer’s battery warranty. We’ll compare the options with you plainly.
What affects the cost of a home battery?
Mainly how much you want to back up: usable capacity, how many batteries you stack, and the electrical work to add a critical-loads panel. A battery paired with solar may also qualify for South Carolina’s 25% state tax credit. We don’t quote a price off a napkin, a free assessment gives you real figures.
Will a battery pay for itself?
It depends on the gap between what you pay for power and what your utility credits exports. In Georgia, where exports earn roughly 7.2c against a retail rate near 13c, the economic case is strong. In Virginia, where one-for-one retail net metering applies, it is much weaker and resilience has to carry the decision. We will tell you which one applies to you.
Can a battery run my whole house during an outage?
Not indefinitely, and air conditioning consumes a great deal of the available capacity in a Lowcountry summer. Which circuits are backed up is a design decision made in advance, and the honest version of that conversation involves trade-offs.
Do I need a battery to have solar?
No. Most of the systems we install do not have one. Storage is worth adding where the export gap makes it economic or where resilience genuinely matters to you, not as a default.
Will a battery fix a shaded roof?
No. Storage moves energy in time, it does not create it. If the array is shaded or undersized, a battery adds cost without addressing the constraint.
Do you quote storage separately from the solar system?
Yes, deliberately. A single blended savings figure hides whether you are buying resilience or economics, and those are different products with different justifications.
Read first
Battery guides worth reading before you buy
Sizing, backup boundaries, placement and quote comparison, explained without the marketing runtime claims.
- Battery Storage
Battery Backup for Air Conditioning in Georgia: Size the Actual Load
Plan battery backup for air conditioning in Georgia using compressor startup, indoor-unit loads, measured cooling energy, reserve settings and compatibility.
16 min read - Solar Planning
Guyton and Effingham Battery Backup: Water and Approval Checks
Plan Guyton or Effingham battery backup by confirming water source, parcel jurisdiction, utility, ownership and the equipment scope before choosing a system.
16 min read - Battery Storage
Solar Battery Payback in Georgia: Calculate the Incremental Value
Calculate Georgia solar battery payback separately from solar panels using lost export credits, avoided imports, charging losses, reserve and complete costs.
16 min read - Battery Storage
Georgia Power Battery Rates: Compare TOU Eligibility and Dispatch
Compare Georgia Power battery rate options using tariff eligibility, interval usage, dispatch controls, reserve settings and complete electricity bills.
16 min read - Battery Storage
Non-Export Solar Batteries in Georgia: Approval and Control Checks
Review Georgia non-export battery designs using utility acceptance, measurement boundaries, supported controls, full-battery behavior and commissioning records.
16 min read - Solar Planning
Richmond Hill Battery Permits: Documents and Approval Checks
Plan a Richmond Hill solar battery project with the correct city or county route, current utility documents, revision records and documented commissioning.
16 min read
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Free assessment · South Carolina
Find out what battery your home actually needs
We read your bill, check who actually serves your meter, and tell you what your roof will carry. If solar does not make sense at your address, we will say so, and that answer is free too.
- We confirm who actually serves your meter before we quote anything
- We pull the permits and handle the interconnection paperwork
- If your HOA needs an architectural-review packet, we prepare it
Prefer to talk? (843) 310-1128
Free, no-pressure assessment
See if battery storage is right for your home
Tell us what you want to keep running when the grid goes down, and we’ll size a battery honestly, including whether it’s the right call for your home.
Mon–Sat, 10am–6:30pm ET · We typically follow up within the hour.