Battery Energy Storage Systems (BESS) for Mission-Critical Power
A battery energy storage system (BESS) stores electrical energy to provide backup power, shave peak demand, and improve resilience for mission-critical facilities. BESS can bridge to generators, reduce demand charges, support sustainability goals, and integrate with UPS and renewables. Comp-Utility designs and integrates BESS solutions across Central Texas, sized and engineered around your load profile and goals.
What We Provide
Our Capabilities
BESS Design and Integration
We assess your goals and load profile and design a BESS that integrates with your power infrastructure.
Learn moreUPS and Generator Coordination
We coordinate BESS with your UPS and standby generation so the systems complement each other.
Learn moreInstallation and Service
We install, commission, and maintain BESS to applicable fire and safety codes.
Learn moreFlexible Stored Energy
More Than Backup: Resilience, Peak Shaving, and Efficiency
Battery energy storage adds flexibility traditional backup alone cannot: it stores energy to shave peak demand, support critical loads, and smooth how power flows through your facility, while still providing backup.
As loads grow and sustainability goals sharpen, BESS is an increasingly practical part of the mix. Comp-Utility designs and integrates storage that scales with your needs.
The Comp-Utility Difference
Why Comp-Utility?
Engineer-Owned and Operated
Comp-Utility is owned and operated by engineers, with licensed Texas Professional Engineers (P.E.) on staff. That rigor anchors every design, specification, and installation.
Turnkey, Single-Contract Partner
We sell, design, install, and maintain complete infrastructure end to end. One accountable team and one contract for power, cooling, distribution, and cabling.
Trusted Since 1992
We have designed, installed, and maintained mission-critical power and cooling infrastructure across Central Texas since 1992, through every generation of the technology.
Long-Standing Distribution Partner
As a long-standing distribution partner of Eaton, Schneider Electric, and Vertiv, we specify best-in-class systems and back them with factory-grade service.
Licensed, Certified & Recognized
We hold ourselves to the standards of the institutions we serve, from professional licensure and jobsite safety to the industry organizations that set the bar for mission-critical work.
Licensed Professional Engineers
State of Texas (TBPE)
OSHA 30 Certified
Field Technicians
AFCOM Member
Data center industry association
7x24 Exchange Member
Mission-critical infrastructure
Frequently Asked Questions
What is a battery energy storage system (BESS)?
A BESS stores electrical energy in batteries, typically lithium-ion, so it can be discharged when needed for backup power, peak shaving, load support, or grid services. In mission-critical facilities, a BESS adds resilience and flexibility beyond a basic UPS or generator, and it can help manage demand charges and support sustainability goals.
Can a BESS replace a diesel generator?
A BESS can provide backup for a period determined by its energy capacity, but for extended outages generators still provide sustained runtime from fuel. Often the best design uses a BESS for instantaneous, clean backup and peak management, with a generator for long-duration outages. Comp-Utility evaluates whether BESS, generators, or both fit your resilience goals.
How does a BESS support peak shaving?
Peak shaving uses stored energy to supply part of the load during periods of high demand, reducing the peak the facility draws from the utility and therefore demand charges. The BESS charges during low-demand periods and discharges during peaks. Comp-Utility sizes the BESS to your load profile and demand pattern to capture these savings.
How does a BESS integrate with my UPS and generator?
A BESS is coordinated with the UPS and generator so the systems complement rather than conflict: the UPS handles instantaneous ride-through, the BESS provides flexible stored energy and peak management, and the generator provides long-duration backup. Comp-Utility designs the integration and controls so the systems work together within your electrical architecture.
What safety and code requirements apply to BESS?
Lithium-ion BESS installations must meet fire and safety codes, including requirements for ventilation, fire detection and suppression, spacing, and battery management systems that monitor and protect against thermal events. Comp-Utility designs and installs BESS to the applicable codes and manufacturer requirements, with the safety systems these installations require.
What size BESS do I need?
BESS sizing depends on your goals, the power (kW) and energy (kWh) needed for backup duration or peak shaving, your load profile, and available space. Comp-Utility assesses your objectives and load data, then sizes the BESS power and energy capacity and designs the integration to meet your resilience and demand-management goals.
Is a BESS worth it for demand-charge management in Texas?
It can be, where demand charges are significant and the load profile has pronounced peaks that storage can shave. The value depends on your rate structure, load shape, and any incentives. We explain the cost drivers in general terms (we do not publish prices) and model the benefit. Comp-Utility helps evaluate whether a BESS makes sense for your facility.
Who designs and integrates BESS in Central Texas?
Comp-Utility designs, integrates, installs, and maintains battery energy storage systems across Central Texas, coordinating them with your UPS, generators, and electrical design. Engineer-owned since 1992. Call (512) 346-0999 or email sales@comp-utility.com to discuss a BESS project.