Commercial Energy Storage Solutions for Texas.

Lower Bills. Backup Power. ERCOT Programs. Energy Independence. We make battery storage practical, profitable, and proven for Texas businesses and organizations.

Why Energy Storage Matters for Your Business

Electricity costs are climbing, the grid is less reliable, and demand charges cut into profits. Installing batteries stores excess or off-peak power for peak periods, smooths energy spikes, and keeps critical systems running during outages.

Lower Demand Charges
Demand charges can account for up to 50% of a commercial electricity bill, even if the spikes only last a few minutes. Battery storage smooths those peaks by covering short-term surges, directly lowering your monthly utility costs.
Backup Power for Critical Loads
When the grid goes down, battery storage keeps essential systems like refrigeration, security, or production lines running without interruption. Unlike generators, batteries respond instantly, so there’s no lag in protection.
Energy Independence
Relying solely on the grid means being at the mercy of fluctuating prices and outages. Battery storage lets you store your own power and decide when and how to use it, giving you more control over costs and reliability.
Load Shifting
With battery storage, you can store cheaper off-peak or solar-generated energy and use it during high-cost peak periods. This strategy not only reduces your bills but also maximizes the value of your solar investment.
Grid Revenue Potential
In some Texas markets, businesses can sell stored energy back to the grid during peak events. With ERCOT’s new Emergency Response Services (ERS), battery owners have more ways to earn revenue while supporting grid stability.
"Big Sun have been a great partner for us. They were very involved in the day to day and all the way through the project. I couldn’t have asked for a better partner. They made it look easy.”
Nick Correll
Director, Safran Americas
$65K
Savings per year
25%
Energy Offset
meet our customers
How BATTERY STORAGE works

How Commercial Energy Storage Works

Commercial battery storage systems capture and store excess energy from your solar array during the day or from the grid when rates are lowest and release it when you need it most. In Texas, that means avoiding costly demand charges during peak times, powering your most critical systems through outages, and even creating new revenue streams in certain markets.

1
Charge

Your battery fills with clean solar energy your system generates or with lower-cost grid power during off-peak hours.

Speedcurve Performance Analytics
2
Monitor

A smart energy management system tracks your facility’s energy usage and grid conditions to optimize when to store or release energy.

A view of the refrigerator manufacturing plant's fully automated side panel forming line.Translation: "Warning:Danger Prohibit reach into;elecric shock;must connect an earth terminal to the ground"
3
Dispatch

Draw from your battery to avoid expensive peak rates, smooth spikes in demand, or keep essential systems running during outages.

Schedule a Battery Consultation
INDUSTRIES

Where Energy Storage Delivers Value

Cold Storage & Warehousing
Refrigeration and freezer systems run constantly, with compressor spikes driving up demand charges. Battery storage smooths those peaks, lowers utility costs, and protects inventory during outages.
Manufacturing Facilities
Heavy machinery and production cycles create short bursts of high energy use that can lead to costly penalties. Our systems shave those peaks and provide backup for mission-critical processes.
Public Agencies & Community Buildings
Ensure essential services stay operational during outages, from cooling centers to emergency shelters. Battery storage improves resilience while reducing long-term operating costs.
Large Industrial Users
Maximize your return by dispatching stored energy during peak pricing events. In certain markets, this can also generate new revenue streams while boosting energy independence.
Connect with an Energy Expert

The Big Sun Advantage

Texas Born. Texas Powered.

  • Headquartered in Texas since 2015
  • We understand Texas policies, incentives, and weather. We build systems designed to thrive right here in Texas.
  • We’ve helped communities and companies across every industry in Texas go solar for over a decade.

No Middlemen.
Only Big Sun.

  • All engineering, design, and installation are handled by our in-house team.
  • Our crews live and work in the regions we serve.  No out-of-state contractors or one-size-fits-all solutions.
  • One team, one standard of excellence. Every step of the process managed under one roof.

Commerical Specialization

  • Proven track record delivering solar solutions across all manufacturing industries.
  • Focused on long-term savings, energy resilience, and grid independence.
  • Committed to supporting the communities we live in through clean, reliable energy.
Trusted and vetted by leading organizations

Get your custom savings estimate

Let’s explore how energy storage can help your business save money, stay powered, and take control of your energy future.
Energy Storage Inquiry

Have questions about commercial battery storage and how it could work for your organization? Reach out below and our team will guide you through the next steps.

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our experience
Solar Solutions for Facilities of All Sizes
Whether you're managing a single campus or a large portfolio of facilities, we deliver scalable, cost-effective solar solutions tailored to your needs. Our in-house team handles everything from design to installation. Ensuring your facilities reduce energy costs and meet goals with minimal disruption.
Manufacturing
Our solar solutions support manufacturers with high energy demands, lowering utility costs and increasing long-term efficiency.
Municipalities
We partnered with the City of San Antonio for the 2nd largest onsite solar project for a municipality in the US.
Goodwill San Antonio rooftop solar
Non-Profits
We help mission-driven organizations reduce operating costs and reinvest more into the communities they serve.