
Commercial Energy Storage Solutions
Stationary battery energy storage systems engineered for commercial facilities, businesses, and industrial properties in Batavia, IL.
What Is Commercial Energy Storage?
Commercial energy storage is an integrated electrical installation combining commercial-grade battery modules, bi-directional inverters, and dedicated energy management controls connected directly to a commercial building's main switchgear.
Unlike small residential units, commercial storage systems are sized to handle higher operating voltages (typically 480V or 208V three-phase) and larger power demands. They allow facility managers to store energy produced by on-site commercial solar arrays and deploy that power during peak operational hours or utility outages.

Why Businesses Consider Energy Storage
Commercial facilities evaluate stationary storage to support business continuity, energy flexibility, and modern building electrification.
Critical Continuity
Maintaining continuous power for servers, refrigeration units, telecom infrastructure, or critical facility monitoring during sudden utility blackouts.
Solar Optimization
Capturing midday commercial solar generation that exceeds instantaneous building use and utilizing that stored power later when facility demand rises.
Demand Flexibility
Deploying stored kilowatt-hours during peak operational hours to help smooth out short-duration electrical spikes based on facility load profiles.
Storage Design Considerations
Appropriate commercial battery sizing is tailored around electrical parameters and physical site conditions:
- Peak kW vs. Total kWh: Balancing instantaneous power output (kW) for motor starting with total energy storage duration (kWh).
- Switchgear & Subpanel Space: Ensuring existing distribution gear has room for dedicated disconnects, metering, and subpanels.
- Indoor vs. Outdoor Footprint: Evaluating climate-controlled mechanical rooms or weather-rated outdoor concrete pad placements with fire code setbacks.
Critical Loads & Backup Planning
In commercial buildings, designing for critical circuits rather than entire facilities ensures cost-effective resilience:
- Targeted Circuit Selection: Isolating priority subpanels for server rooms, egress lighting, building automation, and security equipment.
- Avoiding Heavy Non-Essential Loads: Excluding large industrial chillers or heavy manufacturing equipment that would drain battery reserves rapidly.
- Automated Transfer Mechanisms: Utilizing fast-acting transfer switchgear to switch seamlessly between grid power and battery reserves.
The Energy Storage Project Process
How a commercial energy storage project progresses from initial feasibility through commissioning.
Interval Data Audit
Analysis of utility 15-minute load profiles, peak demand times, and critical circuits.
Engineering Design
Electrical single-line diagrams, inverter pairing, fire safety spacing, and switchgear layout.
Permits & Interconnection
Municipal electrical and fire department permit approvals and utility interconnection review.
Mounting & Integration
Equipment placement on pad/room, conduit runs to switchgear, testing, and commissioning.
Explore Commercial Solar Services
Explore how commercial battery storage complements other SunHeat Solar solutions.
Rooftop Solar
Generate clean electricity on your facility's roof to charge on-site battery reserves.
Ground Mount Solar
Pair your commercial battery bank with a ground-mounted solar array on open land.
Parking Canopies
Integrate canopy generation with battery storage to provide parking lot lighting and charging.
Commercial EV
Support high-demand commercial EV charging stations with stationary battery storage.
Commercial Storage in Batavia & The Fox Valley
SunHeat Solar is based at 336 McKee St E, Batavia, IL 60510. We evaluate commercial energy storage opportunities for businesses and facilities across Batavia, Aurora, North Aurora, Wheaton, St. Charles, Naperville, and surrounding communities.
View our regional service areasCommercial Energy Storage FAQs
Helpful answers to common commercial battery storage questions.
Commercial Storage & Microgrid Guides
Learn how commercial batteries manage utility demand charges, support critical industrial processes, and pair with on-site solar generation.
Illinois Solar Guide: What Homeowners and Businesses Should Know
Yes. Illinois properties receive sufficient annual sunlight to generate practical solar electricity, with modern photovoltaic systems operating effectively across all four seasons.
Commercial Solar Planning Guide: What Businesses Should Consider
Commercial solar projects involve three-phase electrical distribution systems, larger physical array footprints (often on low-slope commercial roofs), and utility tariff structures that include both consumption and peak demand charges.
Commercial Battery Storage Guide: Energy Storage for Businesses
Commercial battery energy storage systems (BESS) are stationary lithium battery banks installed alongside commercial electrical switchgear to store electricity from solar panels or the grid for strategic facility use.
Evaluate Energy Storage for Your Facility
Contact SunHeat Solar today to discuss commercial energy storage feasibility and request a property assessment.
