Whole-Home Battery Backup
Learn how battery capacity, inverter output, gateway design, surge loads, and load management affect real whole-home backup performance.
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Advanced Power USA Knowledge Center
Illinois Solar, Battery Storage and Energy FAQs
Clear answers about residential solar, premium battery backup, SigenStor and Sol-Ark/Renon energy systems, PPAs and leases, commercial projects, ComEd programs, Illinois Shines, installation, warranties, and long-term system ownership.
Purchase, PPA or Lease?
Compare ownership, financing, PPA and lease structures, upfront cost, long-term control, transfer provisions, and contract responsibilities.
Compare payment optionsIllinois and ComEd Programs
Understand Illinois Shines, Renewable Energy Credits, net metering, and the project-specific nature of ComEd rebate eligibility.
Review Illinois programsNo matching questions were found. Try a broader term or contact Advanced Power USA directly.
FAQ category
Getting Started
3 questionsWhat information does Advanced Power USA need to evaluate my property?
Advanced Power USA can begin building your energy strategy with four simple items: a recent electric bill, the property address, the utility provider, and a clear description of what you want the system to accomplish. We then account for future EV charging, electric appliances, backup priorities, roof or ground-mount preferences, and long-term energy goals. The result is a serious property-specific recommendation—not a generic online estimate.
Start My Property ReviewHow do I begin a solar or battery consultation?
Getting started is simple. Submit the contact form, upload a recent utility bill, or call Advanced Power USA at (815) 382-6486. Our team will review your property, electric usage, backup goals, payment preferences, and long-term objectives, then show you the strongest solar, battery, ownership, PPA, or commercial pathway.
Start My Free Energy ReviewDoes Advanced Power USA serve my area?
Yes. Advanced Power USA serves homeowners and businesses throughout Illinois ComEd territory, including Cook, Kane, DuPage, McHenry, Lake, Winnebago, Boone, and surrounding counties.
Our team works across Northern Illinois—from established Chicago suburbs to rural properties, farms, commercial buildings, and larger residential estates. Send us your address and we will quickly confirm service availability and identify the strongest solar, battery-storage, or premium energy option for your property.
Check My AddressFAQ category
Residential Solar
5 questionsHow is a residential solar system sized?
Advanced Power USA sizes residential solar around the home’s actual electricity use, available roof or ground space, sunlight exposure, future electrical loads, and desired energy offset. We design the array to do real work—produce meaningful power, reduce dependence on the utility, support battery charging, and create long-term value.
Design My Solar SystemWill solar eliminate my electric bill?
A well-sized solar and storage system can dramatically reduce the amount of electricity you purchase from the utility. New ComEd-area systems are generally under supply-only net metering, so delivery charges, taxes, fees, minimum charges, and electricity drawn from the grid can remain on the bill. Advanced Power USA designs around that reality: maximize useful on-site solar, store more of your own production, and reduce exposure to utility-supplied energy as aggressively as the property and rate structure allow.
Can solar be installed on the ground instead of the roof?
Yes. Advanced Power USA installs ground-mounted solar when the property has suitable space. Ground mounts can deliver excellent orientation, easy service access, fewer roof limitations, and room for a larger, higher-producing array. For the right property, a ground mount can be the strongest solar option available.
What happens when I sell a home with solar?
An owned solar system typically transfers with the home as part of the property and can strengthen the home’s energy value. A financed system, lease, or PPA follows the transfer, payoff, assumption, or buyout terms in the agreement. Advanced Power USA recommends reviewing those provisions before listing so the sale is handled cleanly and confidently.
How long do solar panels last?
Solar panels are built to produce dependable energy for decades, and Advanced Power USA’s panels include a 25-year manufacturer warranty. That long-term coverage reflects the quality and durability of the panels we install. Solar is one of the longest-lasting improvements a homeowner can make—delivering clean power, greater control over electricity costs, and lasting value for the property.
FAQ category
Battery Storage and Backup
7 questionsHow much battery storage does my home need?
Advanced Power USA sizes battery storage around the home, major loads, outage goals, solar production, and the level of energy independence the customer wants. For premium SigenStor designs, a full six-module 54.24 kWh stack is a strong high-capacity benchmark for homes seeking serious whole-home backup. Sol-Ark/Renon systems are likewise engineered around the required inverter output, usable battery capacity, surge loads, and desired runtime.
We do not size storage from a generic “one battery fits every home” rule. We build the battery and inverter architecture around what the customer actually expects the system to run.
Size My Battery SystemCan SigenStor provide whole-home backup?
Yes. Advanced Power USA can design SigenStor to provide full-home backup and keep the entire home energized during a grid outage. That includes central air conditioning, refrigeration, lighting, internet, well pumps, outlets, and other major household loads.
Instead of limiting the home to a few emergency circuits, a properly sized system allows the household to remain comfortable and functional. Smart load management extends runtime during a long outage, and when sunlight returns, the solar array can power the home and recharge the batteries.
Plan My Full-Home BackupDoes a 200-amp gateway provide 200 amps of battery power?
No. A 200-amp gateway rating describes the service connection and pass-through capability; it does not mean the batteries continuously deliver 200 amps by themselves.
That distinction does not prevent whole-home backup. Advanced Power USA designs the complete system—gateway, inverter output, battery capacity, surge capability, solar recharge, and load management—around the actual home. A properly engineered system can back up the full service panel and operate major loads such as central air conditioning, refrigeration, well pumps, lighting, outlets, and internet without reducing the home to a small emergency-load panel.
The gateway determines how the home is connected during an outage. The inverter and battery system determine how much power can be delivered at once and how long the home can sustain it.
Plan My 200-Amp Backup SystemCan the battery recharge from solar during an outage?
Yes. During a grid outage, the solar array can power the home and recharge the batteries. That means backup is not limited to the energy stored when the outage begins. When sunlight returns, the system can restore battery capacity and continue supporting the home, giving solar-plus-storage a major advantage over a standalone backup battery.
Can battery storage be added to an existing solar system?
Yes. Advanced Power USA can add battery storage to many existing solar systems. We review the current inverter, array, electrical service, equipment layout, and backup goals, then design the strongest retrofit or upgrade path. Adding storage can transform an existing solar array into a far more capable energy system with outage protection, greater self-consumption, and better control over the power your panels already produce.
Review My Existing Solar SystemHow much storage can a SigenStor stack provide?
A single SigenStor stack can hold six 9.04 kWh battery modules for 54.24 kWh of nominal storage. That is a powerful starting configuration—not the system limit. Advanced Power USA can design larger storage systems using additional compatible SigenStor equipment and engineered configurations to serve larger homes, heavier loads, longer backup goals, and commercial applications.
Will a battery run my air conditioner, well pump, or other large loads?
Yes. Advanced Power USA can design the system to run central air conditioning, well pumps, refrigeration, lighting, internet, and other major household loads during an outage. We size the inverter power and battery capacity around the equipment the homeowner wants to operate—not around a bare-minimum emergency panel.
With a properly sized system, homeowners can maintain real comfort and normal household function while the grid is down. Strategic load management simply helps extend runtime through longer outages.
Design My Backup SystemFAQ category
Premium Independent Energy Systems & Equipment
5 questionsWhat is an Advanced Power USA Premium Independent Energy System (PIES)?
PIES is Advanced Power USA’s premium solar-plus-storage design approach—not a single equipment brand.
A Premium Independent Energy System combines high-production solar, substantial battery storage, hybrid inverter capability, intelligent energy management, outage operation, and a design built around greater control of the property’s energy use. Depending on the project, Advanced Power USA can build that architecture around SigenStor or a Sol-Ark/Renon configuration.
The objective is the same: a serious energy system designed to produce, store, manage, and use more of the customer’s own power while providing meaningful backup capability.
Explore PIES PackagesWhat is the SigenStor 5-in-1 energy platform?
SigenStor is an advanced all-in-one energy platform that brings the most important parts of a modern solar and storage system together in one coordinated solution.
It integrates solar inverter technology, modular battery storage, battery power conversion, intelligent energy management, and optional DC EV charging capability into a streamlined platform built for performance, flexibility, and future growth.
For homeowners, that means fewer disconnected components, cleaner system integration, powerful app-based monitoring, scalable storage, full-home backup capability, and a smarter way to generate, store, manage, and use energy.
Advanced Power USA offers SigenStor as one of its premium PIES platforms because it delivers the control, capacity, integration, and expandability today’s energy-conscious homeowners expect.
Explore the SigenStor PlatformDoes Advanced Power USA also offer Sol-Ark and Renon systems?
Yes. Advanced Power USA continues to offer Sol-Ark hybrid inverters paired with Renon battery storage for projects where that architecture is the stronger fit. Sol-Ark provides powerful hybrid-inverter and whole-home backup capability, while Renon offers residential and commercial battery-storage options.
We do not force every customer into one equipment ecosystem. We select between SigenStor, Sol-Ark/Renon, and other compatible equipment based on electrical design, backup objectives, expansion plans, project economics, and the property itself.
Compare Battery PlatformsCan SigenStor storage be expanded later?
Yes. SigenStor is modular and built to grow. Advanced Power USA can expand storage capacity through compatible equipment and engineered system configurations as the customer’s energy needs increase. That makes SigenStor an excellent long-term platform for growing families, additional electrical loads, EV charging, longer backup goals, or a greater level of energy independence.
Explore Expandable SigenStorHow is a SigenStor system monitored?
SigenStor gives homeowners clear, real-time visibility into how their energy system is performing.
Through the system’s monitoring platform, customers can view solar production, battery charge level, household consumption, grid usage, energy flow, and backup status from one streamlined interface.
That means homeowners can see when the system is producing power, storing energy, supporting the home, or drawing from the grid. The result is greater control, better awareness, and a much more connected energy experience than a traditional solar-only system.
Advanced Power USA configures the system so customers can confidently monitor performance and understand how their home is generating, storing, and using energy every day.
Explore SigenStor MonitoringFAQ category
PPAs, Leases, Financing and Ownership
6 questionsWhat is a solar PPA?
A solar power purchase agreement allows a homeowner to use solar without purchasing the entire system upfront. The system owner installs and maintains the equipment, and the customer purchases the electricity it produces at the rate stated in the agreement. Advanced Power USA’s PPA pathway is designed for customers who want solar benefits, predictable energy pricing, and less upfront capital commitment.
See Whether a PPA Fits My HomeWhat is the difference between a solar PPA and a solar lease?
Both structures allow a customer to use a solar system without purchasing the equipment outright. With a PPA, the customer pays for the electricity the system produces at the rate defined in the agreement. With a lease, the customer generally pays an agreed lease payment for the use of the system.
Ownership, maintenance responsibility, escalators, term length, transfer provisions, purchase options, and incentive ownership are controlled by the written agreement. Advanced Power USA compares the available structures so the customer understands exactly what is being paid for and who owns the system.
Is purchasing better than a PPA or lease?
Purchasing delivers the strongest long-term ownership position because the customer owns the equipment, controls the asset, and retains the value created by the system. A PPA or lease offers a lower-upfront-cost pathway and can be the better fit for customers who prioritize immediate savings, predictable payments, or simplicity over direct equipment ownership. Advanced Power USA can show the available structures clearly so the customer can choose the approach that best matches the property and financial goals.
Compare Purchase and PPA OptionsCan an Advanced Power USA PPA or lease have zero upfront system cost?
Yes. Eligible zero-upfront PPA or lease offerings can be installed without the customer purchasing the solar system upfront.
Under a PPA, the customer pays for electricity produced under the agreement. Under a lease, the customer pays the lease amount defined in the agreement. Qualification and the final economics are established in the written offer.
Advanced Power USA will clearly explain the payment structure, agreement length, any escalator, transfer terms, purchase or buyout provisions, and other contract details before the customer signs.
Check My PPA EligibilityCan a PPA or lease be transferred when the property is sold?
Yes. PPAs and leases commonly include a transfer process for a qualified buyer, along with defined prepayment, buyout, assumption, or sale options. The controlling terms are in the agreement. Advanced Power USA makes those provisions clear before signing so future property-sale planning starts with no surprises.
Who receives solar incentives or tax benefits under a PPA or lease?
The system owner generally controls the tax attributes and other ownership-based benefits unless the written agreement states otherwise. The customer receives the economic benefit defined in the PPA or lease pricing rather than assuming that every incentive is paid directly to the customer. Advanced Power USA identifies the ownership structure and incentive treatment in the proposal and agreement.
FAQ category
Illinois Incentives, Federal Tax Rules and ComEd
7 questionsWhat is Illinois Shines?
Illinois Shines is the State of Illinois solar incentive program that supports qualifying distributed-generation and community-solar projects through the purchase of Renewable Energy Credits. For an eligible project, REC value can materially improve project economics and help reduce the effective cost of going solar.
Is Advanced Power USA part of the State of Illinois?
No. Advanced Power USA is an independent Illinois solar and battery company. It is not part of, endorsed by, affiliated with, or acting on behalf of the Illinois Power Agency, Illinois Commerce Commission, State of Illinois, ComEd, or Illinois Shines.
What is a Renewable Energy Credit?
A Renewable Energy Credit, or REC, represents the environmental attributes of renewable electricity generation. In an Illinois Shines project, the applicable REC rights are transferred under the program arrangement, and the incentive value helps strengthen the project economics for the customer.
What ComEd rebates may be available?
For current residential and small-commercial projects, the ComEd distributed-generation rebate can provide $300 per kW of eligible solar capacity, and qualifying associated battery storage can receive a separate $300 per kWh of nameplate storage capacity. Commercial and industrial rebate levels are generally $250 per kW for generation and $250 per kWh for storage. Program participation carries specific interconnection, rate-plan, equipment, and storage-dispatch requirements. Advanced Power USA evaluates those requirements and uses the applicable rebate assumptions in the project proposal.
Does battery storage qualify for a ComEd rebate?
Yes. Qualifying battery storage can receive a ComEd rebate when paired with eligible distributed generation and enrolled under the applicable equipment, interconnection, rate-plan, and dispatch requirements. Advanced Power USA evaluates the project, identifies the applicable rebate pathway, and documents the rebate assumptions used in the proposal.
How does net metering work for new ComEd solar customers?
Solar still earns value for excess electricity exported to the grid, but the rules changed for new residential and small-commercial systems beginning January 1, 2025. New systems generally receive supply-only net-metering credits rather than the older full-retail credit structure. Customers therefore continue to pay applicable delivery charges on electricity pulled from the grid.
That change makes good system design and battery strategy more important—not less. Advanced Power USA prioritizes direct solar consumption, strategic battery charging and discharge, and informed rate selection so more of the system’s production creates value on the property instead of relying entirely on export credits.
Is there still a 30% federal residential solar tax credit in 2026?
No. The federal Residential Clean Energy Credit under Internal Revenue Code Section 25D ended for expenditures made after December 31, 2025.
That does not eliminate Illinois Shines REC value, applicable ComEd rebates, or the economics of reducing utility purchases. Commercial and business-owned projects operate under different federal tax provisions and should be evaluated under the current rules with the customer’s tax professional.
FAQ category
Commercial Solar and Storage
3 questionsWhat types of commercial properties can use solar?
Warehouses, farms, offices, retail buildings, industrial facilities, multifamily properties, nonprofits, and many other commercial sites can use solar. Advanced Power USA evaluates roof space, available land, electricity usage, structural conditions, electrical service, operating profile, and financial goals to build a high-value commercial energy strategy for the property.
Evaluate My Commercial PropertyHow is a commercial solar project evaluated financially?
Advanced Power USA evaluates interval usage, demand, electricity rates, solar production, incentives, tax benefits, depreciation, financing, operating savings, cash flow, and the customer’s target return. The result is a project-specific financial model built around the business—not a generic residential estimate repackaged for a commercial property.
Can commercial battery storage reduce demand charges?
Yes. Properly sized and intelligently controlled battery storage can reduce demand peaks and lower demand charges for commercial customers on applicable rate structures. Advanced Power USA analyzes the interval load profile, battery size, and dispatch strategy to identify where storage can produce measurable operating value.
Request a Commercial Storage AnalysisFAQ category
Installation, Service and Other Options
4 questionsWho handles permitting and utility interconnection?
Advanced Power USA coordinates the full project process, including design, engineering, permitting, utility interconnection, inspections, commissioning, and permission to operate as defined in the agreement. The customer mainly provides signatures, site access, utility records, and any required property or HOA documentation while our team moves the project forward.
How long does a solar installation take?
The physical installation for a typical residential project usually takes only a few days. The full project timeline is longer because engineering, permits, utility review, inspections, equipment scheduling, incentive documentation, and permission to operate occur before and after installation. Advanced Power USA manages that process so the customer is not left trying to coordinate multiple parties alone.
What warranties should I review?
Advanced Power USA’s solar panels include a 25-year manufacturer warranty, providing long-term confidence in one of the most durable energy improvements a homeowner can make. We select quality equipment, professionally design the system, and clearly present the included coverage so customers understand how their investment is protected.
What is community solar, and when does Advanced Power USA offer it?
Community solar allows eligible customers to receive utility-bill credits from an off-site solar project without installing panels on their own property. It is an excellent alternative for renters, shaded properties, unsuitable roofs, or customers who prefer a subscription-based option. Advanced Power USA helps the customer understand the savings structure, allocation, term, transfer, and cancellation provisions before enrollment.
Explore Community SolarExplore Advanced Power USA energy solutions
Continue from the FAQ to the service most relevant to your property. Advanced Power USA designs premium solar, SigenStor and Sol-Ark/Renon battery-storage systems, backup-ready PIES packages, purchase, PPA and lease pathways, and commercial energy projects throughout Northern Illinois and ComEd territory.
Still have a question about your property?
Send your utility bill, address, solar goals, and backup priorities. Advanced Power USA will help identify the most appropriate starting point for your home, farm, business, or commercial property.
Answers are general educational information and are not a guarantee of production, savings, incentive eligibility, backup duration, tax treatment, utility approval, or project availability. Final results depend on current law and program rules, property conditions, utility tariffs, engineering, equipment, usage, contracts, and customer circumstances.
