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
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
- 01
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.
- 02
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.
- 03
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.
- 04
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.
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.
Read first
Battery guides worth reading before you buy
Sizing, backup boundaries, placement and quote comparison, explained without the marketing runtime claims.
- Battery Storage
AC-Coupled vs DC-Coupled Solar Batteries
Compare AC-coupled vs DC-coupled solar batteries for retrofits, new systems, backup behavior, compatibility, expansion, and quote scope in South Carolina.
28 min read - Battery Storage
Can You Add a Battery to Existing Solar in South Carolina?
Learn when existing solar can accept a battery in South Carolina, how coupling and inverter limits affect backup, and what to verify before upgrading.
16 min read - Battery Storage
The Home Battery Installation Process in South Carolina
Follow a South Carolina home-battery project from outage brief and site review through design, approvals, installation, commissioning, and handoff.
22 min read - Battery Storage
Where Can a Home Battery Be Installed in South Carolina?
Compare indoor and outdoor home-battery locations using equipment, fire, flood, wind, access, routing, service, and approval evidence.
23 min read - Battery Storage
Can You Install a Home Battery Without Solar?
Compare a grid-charged standalone battery with solar-plus-storage, generator review, or no project using verified loads, recharge, tariffs, and approvals.
22 min read - Battery Storage
How to Compare Home Battery Quotes in South Carolina
Compare South Carolina home battery quotes by usable energy, output, backup scope, equipment, warranty, financing, and final deliverables.
26 min read
Keep exploring
Related services & resources
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.