Residential & Commercial Battery Backup Systems in Central Indiana

Reliable Energy Storage for Backup Power, Solar Integration & Greater Energy Resilience

Branch Electric provides professional battery backup system installation and electrical integration for homes and businesses across Hamilton County, Marion County, and Central Indiana. Whether you want backup power during outages, battery storage paired with solar, critical-load protection, or electrical upgrades to support a new energy storage system, our electricians help design and complete safe, code-compliant solutions built around your property's electrical needs.

Energy Storage & Backup Power

Battery Backup & Energy Storage Solutions for Homes and Businesses

Branch Electric provides the electrical installation and integration behind residential and commercial battery backup systems across Central Indiana, Hamilton County, and Marion County.

What is a battery backup system?

A battery backup system stores electrical energy so selected circuits — or, in some system designs, larger portions of a property — can continue receiving power when utility electricity is unavailable. It integrates with your existing electrical system through panels, subpanels, disconnects, and control equipment, and it can be paired with solar or installed as a standalone backup solution.

A battery backup system's real-world performance depends on more than the battery itself. The electrical system it plugs into — panel capacity, service size, wiring, disconnects, and how the critical loads are laid out — determines how well the system actually delivers backup power when it matters.

That's where Branch Electric comes in. As a Central Indiana electrical contractor, we handle the electrical scope required to plan, install, and integrate a battery backup system safely and to code.

Where Branch Electric helps

  • Electrical planning around backup priorities
  • Critical-load selection and layout
  • Panel and subpanel work
  • Service equipment and disconnects
  • Wiring, breakers, and integration
  • Transfer / control equipment where applicable
  • Solar + battery electrical integration
  • System upgrades and expansion
  • Electrical troubleshooting on existing systems
Whole-Home Backup

Whole-Home Battery Backup Systems

"Whole-home backup" is a real goal — but what a system can actually support during an outage depends on how it's designed and what's running.

Whether a battery can back up an entire home comes down to battery capacity, inverter output, the home's total and starting electrical loads, HVAC and major appliances, the electrical service, and the overall system architecture. Two homes of the same size can have very different backup outcomes depending on how the electrical system is laid out.

Branch Electric starts every design from real electrical loads and your priorities — not a spec sheet. The goal is a backup system that behaves the way you expect it to when the lights go out.

Loads homeowners often prioritize

  • Refrigerators and freezers
  • Lighting and receptacles
  • Internet and communications
  • Sump pumps
  • Well equipment where applicable
  • Selected HVAC equipment
  • Medical or essential equipment where applicable

Actual backup capability and runtime depend on the specific system, battery capacity, inverter output, and the loads being supported. No battery backs up every home indefinitely.

Critical-Load Backup

Critical-Load Battery Backup

For many homeowners, backing up the essentials — refrigeration, lights, communications, sump pump — is a smarter and more practical backup strategy than trying to run everything.

Refrigeration & Kitchen

Keep the refrigerator, freezer, and select outlets running so food doesn't spoil and essentials keep working.

Lighting & Receptacles

Selected lighting circuits and receptacles for the rooms and outlets you actually use during an outage.

Communications

Internet, Wi-Fi, and phone chargers — the circuits that keep you connected and able to work from home.

Sump Pumps & Water

Sump pumps, well equipment, and other water-side circuits that protect the property during storms.

Security & Alarms

Security systems, cameras, garage door openers, and other equipment tied to keeping the home safe.

Essential Equipment

Any medical, work-from-home, or property-specific equipment that has to stay powered during an outage.

Focusing backup on essential circuits generally improves practical runtime compared to backing up the entire home — but exact runtime depends on battery capacity and real usage.

Solar + Storage

Solar + Battery Backup Integration

Solar panels and battery storage do different jobs. Together, they can support daily energy use and provide backup power during an outage — but only when the system is designed for it.

What Solar Does

Solar panels generate electricity when conditions allow — during daylight, with the array sized to the property's roof and orientation. That electricity powers the home or is exported to the grid.

What Battery Storage Does

Battery storage stores compatible energy for later use. When configured appropriately, a battery can also provide backup power during a utility outage — even at night.

Does solar work during an outage?

Not automatically. A typical grid-tied solar system is required to shut down during a utility outage for safety reasons unless the system includes compatible equipment specifically designed for backup operation. Adding battery storage — with the right inverter, controls, and electrical configuration — is one of the most common ways to keep solar functional when the grid is down.

Panel Integration

Integration between the existing main panel and the battery / critical-load panel, sized for the backup loads.

Disconnects

Required disconnects for both the solar array and the battery system, per code and utility requirements.

Battery Connections

Wiring, conduit, and breakers sized for the battery equipment's continuous and surge output.

Critical-Load Panel

A dedicated subpanel for the circuits the battery will back up during an outage.

Service Equipment

Service equipment updates when the existing service can't support the combined solar + battery configuration.

Solar + Storage Interconnection

Interconnection between solar, battery, main panel, and utility per applicable code and utility rules.

Explore our residential and commercial solar electrical services for the solar side of the integration.

No Solar Required

Battery Backup Without Solar

Solar is not required to install a battery backup system. Depending on the equipment and system design, battery storage can be installed as a standalone backup solution charged from the utility.

Grid Charging

The battery charges from the utility during normal operation so it's ready when an outage happens.

Backup Operation

During an outage, the battery supports the backup circuits based on the system's capacity and configuration.

Critical Circuits

The system is wired to the selected critical loads through a subpanel or integrated critical-load panel.

Future Solar Readiness

Standalone battery systems can be planned so solar can be added later without redoing the electrical scope.

System capability depends on the specific equipment. Not every battery product supports every configuration — the electrical design has to match the system's intended operation.

For Homeowners

Residential Battery Backup Systems

Whether you've dealt with too many outages, added solar to the roof, or you're planning ahead for future energy needs — a residential battery system is only as good as the electrical work behind it.

Common residential scenarios

  • Homeowners tired of losing power during storms
  • Households with existing solar wanting outage backup
  • New homes being built battery-ready
  • Remodels adding battery storage during the build
  • Older homes upgrading the electrical system
  • Homes with medical or essential loads
  • Properties adding EV charging alongside storage
  • Households planning long-term energy resilience

What we evaluate for every install

  • Electrical service size and capacity
  • Panel condition, breaker space, and load
  • Existing circuits and backup priorities
  • Major loads (HVAC, well pump, EV charger)
  • Equipment location and mounting
  • Existing solar system, if applicable
  • Future solar and EV plans
  • Grounding and code compliance

Learn more about our electrical panel upgrades and inspections — often part of a battery backup project.

For Businesses

Commercial Battery Backup & Energy Storage

Downtime costs money. Commercial battery backup systems protect the circuits that keep a business running — communications, lighting, security, IT, and other operational loads.

Property Types We Support

  • Offices and professional buildings
  • Retail spaces and storefronts
  • Mixed-use properties
  • Medical and dental practices
  • Restaurants and hospitality
  • Light industrial and flex space
  • Multi-tenant commercial properties

Common Commercial Backup Priorities

  • Communications and internet infrastructure
  • Emergency and egress lighting
  • IT equipment and server rooms
  • Security systems and access control
  • Refrigeration for restaurants / retail
  • POS systems and customer-facing equipment
  • Selected operational loads

Branch Electric supports commercial-building battery backup — the electrical scope for the property's own backup system. Utility-scale energy storage engineering is outside our scope.

Two Different Approaches

Battery Backup vs. Standby Generator

Both provide backup power. They work differently, and the right answer depends on the property, the loads, and how long the backup needs to run.

Battery Backup

  • Stored electrical energy — no combustion on site
  • Quiet operation — no engine noise
  • No onsite fuel to manage or refill
  • Can integrate with solar for daytime charging
  • Instant transfer when configured for it
  • Capacity and runtime depend on battery size and loads

Standby Generator

  • Produces electricity from fuel (natural gas, propane, diesel)
  • Can support extended outages when fuel is available
  • Requires generator-specific equipment and maintenance
  • Can be sized for higher continuous loads
  • Often a better fit for extended, high-load outage scenarios
  • Emits noise and combustion products during operation

Some properties use one system. Some use both — a battery for instant, silent backup on daily loads plus a generator for extended outages. The right strategy depends on the property, the loads, and how long resilience is expected to last.

Electrical Foundation

Electrical Panel & Service Upgrades for Battery Backup

A battery is only as reliable as the electrical system behind it. Panels, service equipment, disconnects, and wiring often need attention as part of a battery backup project.

Do I need a panel upgrade for a home battery?

Not always. Whether an electrical panel upgrade is required depends on the existing panel, service capacity, the specific battery system, equipment requirements, and the loads being backed up. Some installs work with the existing panel; others need a panel upgrade, a subpanel, or a dedicated critical-load panel.

Panel Capacity

The existing panel has to have the amperage and breaker space for the battery system and its associated equipment.

Breaker Space

Battery systems, disconnects, and critical-load panels all require dedicated breakers sized to the system's requirements.

Service Equipment

Meter bases, main disconnects, and service entrance conductors may need to be updated to support the new system.

Subpanels & Critical-Load Panels

A dedicated critical-load panel isolates the circuits the battery will back up and simplifies the electrical design.

Disconnects

Battery, solar, and utility disconnects installed per code and utility requirements for the specific configuration.

Grounding & Bonding

Grounding and bonding updated to current NEC and jurisdiction requirements — essential for safety and code compliance.

See our full electrical panel upgrades and inspections for related work.

Existing Systems

Battery Backup Electrical Troubleshooting & System Upgrades

Have a battery system that isn't behaving? Some issues are electrical, and some are equipment- or manufacturer-specific. Branch Electric can help figure out which is which.

Electrical issues we investigate

  • Breakers tripping on backup loads
  • Disconnect issues and improperly rated equipment
  • Wiring concerns and loose or failed connections
  • Panel or service capacity issues affecting the system
  • System not transferring loads as expected
  • Communication-related shutdowns with a suspected electrical cause
  • Older electrical equipment discovered during a renovation
  • System expansions and added critical loads

Where Branch Electric fits

Branch Electric evaluates the electrical infrastructure associated with a battery backup system — the panels, disconnects, wiring, breakers, service equipment, and integration. That's what we do.

Internal battery cells, proprietary electronics, firmware, and manufacturer-specific components are handled by the equipment manufacturer or their authorized service network. We help clarify whether an issue is electrical or requires manufacturer service.

Building New?

Battery-Ready Electrical Planning for New Construction

The cheapest time to prepare a home for future battery storage is before the drywall goes up. Branch Electric works with builders, GCs, and homeowners to build "battery-ready" electrical systems into new construction.

Panel Capacity

Sizing the panel and service to support current loads plus the future battery, solar, and EV additions.

Service Planning

Choosing service equipment that can accommodate a battery interconnection and any related disconnects.

Equipment Location

Reserving a suitable wall or garage area for the future battery equipment — indoor, garage, or outdoor as required.

Conduit & Wiring Pathways

Roughing in conduit and wiring pathways so future equipment can be installed cleanly without opening drywall.

Critical-Load Planning

Laying out circuits so critical loads can be routed to a dedicated critical-load panel later without a rewire.

Solar & EV Readiness

Coordinating battery readiness with future solar interconnection and EV charging — one integrated electrical plan.

Related: residential remodeling and commercial build-out electrical services.

One Integrated Plan

Plan Your Electrical System for Solar, EV Charging & Battery Storage

Modern homes and businesses are pulling more from their electrical systems than ever. Planning solar, EV charging, and battery storage together — instead of one at a time — leads to cleaner installs and fewer surprises.

Generate

Solar

Rooftop generation sized to the property, feeding daily loads and charging storage when conditions allow.

Store

Battery Storage

Stored energy for backup during outages and time-shifted use when configured for it.

Consume

EV Charging

Level 2 EV charging planned into the panel and service, so it doesn't compete with other loads.

Foundation

Panel & Service

The panel, service, and grounding sized and configured to support all of the above safely and to code.

Related services: EV charger installation and solar electrical services across Central Indiana.

Not every property needs solar, storage, and EV charging. Branch Electric plans what fits your property and priorities — not a template.

For Contractors, Builders & Solar Partners

Battery Backup Electrical Support for Builders, GCs & Solar Contractors

Branch Electric partners with general contractors, builders, remodelers, solar contractors, developers, and commercial project managers on the electrical scope of battery backup projects across Central Indiana. Clean coordination, code-compliant work, and installs that pass inspection the first time.

Electrical Scope

  • Panel and service upgrades
  • Critical-load panels
  • Wiring and disconnects
  • Battery system integration

Solar + Storage

  • Solar + storage interconnection
  • Existing solar integration
  • Inverter-side electrical work
  • Utility interconnection prep

Coordination

  • New construction sequencing
  • Renovation coordination
  • Permit and inspection support
  • Clean, on-schedule installs
How the Project Runs

How Battery Backup Installation Works

A clear path from first conversation to a commissioned electrical scope.

1

Consult

We talk through your outage concerns, backup goals, existing solar, major loads, and future plans.

2

Evaluate

We review your panel, service, circuits, electrical loads, equipment location, and system requirements.

3

Design Electrical Scope

We determine backup loads, panel or subpanel work, wiring, disconnects, and integration needs.

4

Install

We complete the approved electrical installation and equipment integration on the customer side.

5

Test & Commission

We verify the electrical scope and backup functionality within Branch Electric's responsibility.

Utility interconnection timelines and manufacturer-specific commissioning steps are controlled by the utility and equipment maker. Branch Electric coordinates around them.

Common Question

What Can a Home Battery Backup System Power?

The honest answer: it depends. What a battery can actually support during an outage is a function of the whole system, not just the battery.

What determines a battery's real-world backup capability?

Battery capacity, inverter output, the total electrical demand, equipment startup loads, number of batteries in the system, and the backup configuration all determine what a home battery can support during an outage — and for how long.

Lights Refrigerator & freezer Internet & Wi-Fi Selected outlets Sump pump Security systems Electronics & phones Selected HVAC (design-dependent) Essential equipment Well pump (system-dependent)

HVAC support — especially central air conditioning — depends heavily on system design, inverter surge capacity, and battery configuration. Not every battery can start or run every HVAC system.

Why Branch Electric

Backup Power Is Only as Dependable as the Electrical System Behind It

Branch Electric is the licensed electrical contractor Central Indiana homeowners, businesses, and contractors trust to build that foundation.

Electrical-First Expertise

Battery backup is an electrical project. We handle panels, service equipment, disconnects, and integration at a professional level.

Residential & Commercial

Same team, same standard on a single-family home or a commercial building.

Panel & Service Depth

Panels, service upgrades, and critical-load panels are core to what we do — the foundation every battery system relies on.

Solar & EV Integration

We plan the electrical scope across solar, EV charging, and battery storage so they work together, not against each other.

Remodel & New Construction

We integrate battery-ready electrical planning into remodels and new construction so future upgrades are simple.

Central Indiana Coverage

We serve Hamilton County, Marion County, and the surrounding Central Indiana communities.

Service Area

Battery Backup Systems Across Hamilton County, Marion County & Central Indiana

Branch Electric supports residential and commercial battery backup projects throughout the greater Indianapolis metro and the surrounding Central Indiana communities.

Hamilton County

Battery backup electrical installation across Carmel, Fishers, Noblesville, Westfield, Zionsville, and the surrounding Hamilton County communities.

Marion County

Home and commercial battery backup work across Indianapolis and surrounding Marion County neighborhoods — including older homes and modern builds.

Greater Central Indiana

Battery backup projects across the wider Central Indiana area, including Greenwood, Avon, Plainfield, and surrounding communities.

Indianapolis
Carmel
Fishers
Noblesville
Westfield
Zionsville
Greenwood
Avon
Plainfield

See Branch Electric's Central Indiana service areas for full coverage.

FAQs

Frequently Asked Questions About Battery Backup Systems

Clear answers to what homeowners, businesses, and contractors ask us most about home and commercial battery backup.

What is a home battery backup system?

A home battery backup system stores electrical energy so selected circuits — or, in some designs, larger portions of the home — can continue receiving power when utility electricity is unavailable. It integrates with the home's existing electrical system through panels, subpanels, and disconnects, and can be paired with solar or installed as a standalone backup solution.

Can a battery backup power my whole house?

Sometimes — but not automatically. Whether a battery can back up an entire home depends on battery capacity, inverter output, total electrical load, HVAC and appliance demand, and the overall system design. Many homes are better served by a critical-load backup strategy that supports essential circuits reliably.

How long can a home battery provide backup power?

There's no single number. Real-world runtime depends on battery capacity, inverter output, the loads being backed up, equipment startup surges, and — for solar-integrated systems — whether the battery can recharge from solar during the outage. Branch Electric plans systems around your actual priorities, not a marketing number.

Can I install a battery backup without solar panels?

Yes. Depending on the equipment and system design, battery storage can be installed as a standalone backup solution that charges from the utility during normal operation and provides backup power during outages. Solar can be added later if the electrical scope is planned for it.

Can a battery backup system work with solar panels?

Yes — this is one of the most common configurations. When configured appropriately, a battery can store solar-generated energy for later use and provide backup power during a utility outage. The battery, inverter, and electrical integration have to be designed for that combined operation.

Does solar still work during a power outage?

Not automatically. A typical grid-tied solar system is required to shut down during a utility outage for safety reasons, unless the system includes compatible equipment specifically designed for backup operation. Adding battery storage with the right inverter and controls is one of the most common ways to keep solar functional when the grid is down.

Do I need a new electrical panel for battery backup?

Not always. Whether an electrical panel upgrade is required depends on the existing panel, service capacity, the specific battery system, and the loads being backed up. Some installs work with the existing panel; others need a panel upgrade or a dedicated critical-load subpanel.

What is a critical-load panel?

A critical-load panel is a dedicated subpanel that isolates the circuits you want the battery to back up during an outage — refrigeration, lighting, communications, sump pump, and other essentials. It simplifies the electrical design and helps the battery perform predictably.

Can a battery backup run an air conditioner?

Sometimes — but it depends heavily on the AC unit's starting load, the inverter's surge capacity, the battery's continuous output, and the overall system design. Some systems can support central air; others are better paired with mini-splits or partial cooling. Design matters more than the battery brand.

What is the difference between a battery backup and a generator?

Battery backup stores electrical energy and delivers it silently, with no onsite fuel or combustion. Standby generators produce electricity from fuel — natural gas, propane, or diesel — and can support extended outages when fuel is available. Some properties use one, some use both. The right answer depends on your loads, outage exposure, and priorities.

Can battery storage be installed in an existing home?

Yes. Battery storage can be retrofit into existing homes across Central Indiana. Branch Electric evaluates the panel, service, wiring, and equipment location and plans the electrical scope around the existing system — including any panel or service upgrades that may be needed.

Does Branch Electric install commercial battery backup systems?

Yes. Branch Electric handles the electrical scope of commercial battery backup projects for offices, retail, medical, hospitality, mixed-use, and light industrial properties across Central Indiana. We do commercial-building energy storage — utility-scale storage engineering is outside our scope.

Can Branch Electric troubleshoot an existing battery system?

Yes — on the electrical side. Branch Electric evaluates the electrical infrastructure associated with a battery system: panels, disconnects, wiring, breakers, and integration. Internal battery cells, proprietary electronics, and firmware are handled by the manufacturer's authorized service network. We can help identify whether an issue is electrical or requires manufacturer service.

Can battery backup be added during a remodel?

Yes — and it's often the ideal time. Aligning battery installation with a remodel lets the electrical work integrate with the broader construction schedule. Walls open during a remodel are the cheapest time to add conduit, upgrade the panel, and rework circuits for a critical-load panel.

Can a new home be wired for future battery storage?

Yes. Branch Electric works with builders and homeowners to build "battery-ready" electrical systems into new construction — sizing the panel and service, reserving equipment space, roughing in conduit and wiring pathways, and planning critical loads so future battery installation is straightforward.

Can Branch Electric integrate solar, EV charging, and battery backup?

Yes. Branch Electric handles the electrical scope across all three — planning the panel, service, and integration so solar, EV charging, and battery storage work together instead of competing for capacity. One integrated electrical plan is almost always cleaner than three separate installs.

What areas does Branch Electric serve?

Branch Electric serves Hamilton County, Marion County, and the surrounding Central Indiana area — including Indianapolis, Carmel, Fishers, Noblesville, Westfield, Zionsville, Greenwood, Avon, and Plainfield.

How do I get an estimate for a battery backup system?

Call Branch Electric at (463) 210-1544 or request a consultation through branchelectricindy.com/contact-branch-electric. Share your outage concerns, backup priorities, any existing solar or EV plans, and property details — we'll evaluate the electrical scope and provide a clear estimate.

Ready to Talk?

Build a More Resilient Electrical System with Branch Electric

Whether you're planning whole-home backup, protecting critical circuits, adding battery storage to solar, or upgrading a commercial property's backup power capabilities, Branch Electric can help plan and complete the electrical work required for a reliable battery backup system across Central Indiana.

Areas We Serve

Branch Electric provides residential and commercial solar electrical services throughout Hamilton County, Marion County, and Central Indiana, including:

  • Carmel

  • Fishers

  • Noblesville

  • Zionsville

  • Greenwood

  • Avon

  • Plainfield

  • Surrounding communities

Protect What Matters with Battery Backup Power

Schedule a Battery Backup Consultation with Branch Electric

From whole-home and critical-load backup to solar battery integration and commercial energy storage, Branch Electric provides professional electrical solutions designed around your property's power needs throughout Hamilton County, Marion County, and Central Indiana.

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