New Cat® Battery Energy Storage Systems
Expand your energy capacity and power resiliency with the Cat® Battery Energy Storage System (BESS). A new suite of commercially available battery technologies boosts power reliability, quality, and flexibility, and helps renewable energy source integration and energy savings.
Balance large site loads while ensuring power quality with the new Cat BESS. Capable of storing surplus power from any combination of diesel, natural gas, renewable wind or solar, biogas, or hydrogen or blends of hydrogen, the system guarantees short-term, dependable backup power for a wide range of applications. Thanks to its grid stabilization and energy time shifting technologies, the innovative Cat BESS can help stabilize transient loads, supply and absorb alternating current (AC) power, and transfer energy from time-of-generation to time-of-use.
In addition to securing a steady power supply for emergencies, the Cat BESS allows stored energy to be used when it's windy or cloudy or during times of high energy costs. Battery energy storage also enables participation in grid services markets to avoid costs or to receive financial compensation. Support site loads with a system having the scalability to grow with your operation as it leverages on-site generator sets and moves toward more renewable energy source incorporation.
The flexibility and robustness of the Cat BESS makes it ideal for a broad spectrum of applications, including off-grid mining and oil and gas production facilities, industrial and commercial operations, independent power producers (IPPs) and small utilities, data centers, small municipalities, and university campuses.
Steady Power No Matter the Load
Protect against many typical power problems, including power failures, voltage sags/surges, and under/over frequency conditions. When used with generator sets, the Cat BESS provides the reserve power capacity to decrease the transient voltage and frequency dips associated with large loads. Cat BESS modules are particularly well-suited to maximize the performance of high-efficiency lean-burn natural-gas generator sets operating in island mode and applications where power quality is critical.
Products
The commercially available modular packages store energy from the over production of the renewable energy source for use when it is not available and provide temporary backup power to facilities in the event of a power outage. The Power Grid Stabilization (PGS) model is available in a heavy-duty mobile version, the PGS HD, which offers high-power discharge for stabilization of on-grid or off-grid systems.
The ETS, ECE, and PGS modules protect against:
- Power/grid outage
- Voltage sags/surges
- Under/over frequency conditions
System Safety and Reliability
The Cat high performing bi-directional power (BDP) inverter is an integral part of PGS and ETS modules. The Cat BDP1000’s integrated controls provide complete control of the charge and discharge of the BESS. Based on technology developed for Cat electric drive machines, the Cat BDP1000 provides the following:
- Battery control and communication interface
- Battery state of charge control
- Multi-mode operation
- Grid forming, firming, and following capabilities
- Seamless mode transfer between charging/discharging
- Islanding detection – automatic anti-islanding
- Autonomous mode or remote-control mode
Explore our Other Products and Offerings
-
Diesel Generator Sets
Cat® diesel generator sets, engineered for industrial, commercial, and mission-critical applications. deliver dependable standby and prime power where reliability is paramount. Our product range spans 6.8 to 5,720 ekW (6.8 to 7,150 kVA) in both 50 Hz and 60 Hz configurations, giving consultants and contractors precise flexibility during project design.
Each generator set is engineered for optimal efficiency and long-term durability, contributing to low operating costs and typically consuming less than 0.1 gallons (0.38 L) of diesel per kilowatt-hour. Systems are rigorously tested for stable output, rapid response during load changes, and consistent performance in demanding environments.
Cat diesel generator sets can last up to 15-30 years with lifespans of 20,000 to 30,000 operating hours. Whether supporting emergency backup for facilities or providing continuous power for ongoing operations, our commercial and industrial diesel generator sets help minimize integration complexity and deliver reliable power when it matters most.
Learn MoreGas Generator Sets
Industrial and commercial Cat® gas generator sets engineered for dependable power generation deliver reliable performance across prime power, standby, and cogeneration (CHP) applications.
With models ranging from 100 to 4,500 ekW (100 to 4,500 kVA), these systems operate on pipeline natural gas as well as a wide range of alternative gaseous fuels, including low energy fuels, propane, and up to 25% mixed hydrogen – performance characteristics varying by fuel composition and engine platform.
Available in 50 Hz and 60 Hz configurations, our gas generator sets support efficient operation, flexible integration, and consistent output for diverse industrial and commercial projects.
Learn MoreMobile Generator Sets
Cat® mobile generator sets offer reliable and efficient power for commercial and industrial applications, with models ranging from 16 kW to 1,825 kW (20 kVA to 2,280 kVA).
These mobile generators are designed for ease of transportation and fast installation. They support diesel, natural gas, and propane fuels, making them suitable for job sites, emergency backup power, and other remote locations.
Learn More
Benefits of Cat Energy Storage Modules
- Scalable
- Enhanced power reliability and quality
- Easy to set up on site
- Able to be operated in tandem to provide increased power output and/or increase the battery energy capacity
- Allow optimized generator set operation for more efficiency
- Factory pre-packaged and tested
- Improved flexibility in power system design
- Supportive of renewable energy source integration
- Reduced overall energy costs
- Enhanced safety features
- Genset transient assist
Press Release
White Paper
Podcasts
Spec Sheets
The systems feature flexible, scalable, and modular designs to support a broad range of distributed energy system applications and equipment charging stations. Equipped with grid-forming Cat Bi-Directional Energy Storage Inverters, the flexibility and robustness of Cat BESS modules make them ideal for a broad spectrum of applications.
-
Commercial Business
Cat® commercial generators offer world-class fuel efficiency & low life-cycle costs with technology built generators for businesses. Contact a dealer!
Learn More -
Data Centers
Learn about Cat generators for data centers & how we deliver backup power to large data hubs by securing a constant uptime in power.
Learn More -
Education
Cat® power generators for educational facilities can ensure power systems to work effectively for learning facilities. Contact a dealer today!
Learn More -
Manufacturing
Cat® backup power generators for manufacturing run with low operating costs to help minimize electrical expenses. Contact a dealer today!
Learn More -
Mining
Cat® power generators for mining are trusted by large mining operations & small quarries to customize power systems for every mining phase. Learn more.
Learn More -
Municipality
Install Cat® generators in your municipal buildings and empower your community. Contact a dealer!
Learn More -
Utilities
Caterpillar Electric Power offers reliable energy solutions to help utilities find more power, solve capacity challenges, and win in the energy transition.
Learn More -
Land Drilling and Production
Land Drilling and Production
Learn More
Product Support
Customer Value Agreements
Extended Service Coverage
Remote Asset Monitoring
Online Parts Sales
Your Business
North America – English
Caterpillar Brands
- Caterpillar.com
- My Marketing Preferences
- Site Map
- Cookie Settings
- Legal
- Privacy
- Do Not Sell or Share My Personal Information
- Accessibility Statement
- US-English
- © 2026 Caterpillar. All Rights Reserved.