Battery Energy Storage Systems XES60 and XES120
Battery Energy Storage Systems XES60 and XES120

Cat® Battery Energy Storage Solutions

Adding extra power capacity when and where you need it most.

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What are Battery Energy Storage Systems (BESS)?

  • BESS store hours' worth of energy which can be used and dispatched at the optimal time.
  • BESS can be used as a temporary solution for bridging power applications.
  • BESS helps deliver reliable energy, allowing customers to use the extra source of energy when capacity is strained. 
     

What are the benefits of BESS?

Benefits Icon: Flexible
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Flexible

Both renewable and traditional power sources can charge and work with BESS.

Benefits Icon: Potential Fuel Savings
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Potential Fuel Savings

Using BESS alone or paired with a generator set can reduce fuel consumption.

Benefits Icon: Noise Reducing
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Noise Reducing

In comparison to a generator set, BESS produce significantly less noise.

Benefits Icon: Supporting Utilities
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Supporting Utilities

Storing and leveraging additional energy via BESS can help utilities meet power deficits.

Benefits Icon: Lower Energy Costs
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Lower Energy Costs

Cat® AMP dispatches assets like BESS at the optimal time, avoiding peak energy charges.

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How does BESS work?

How Does BESS Work
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  • To store energy, BESS products need to be charged. Multiple power sources can charge BESS, such as renewables (solar/wind), diesel or gas generator sets, and mains power.

  • BESS products can run solely on their own, powering a site with near-silent power.

  • In more common applications, BESS will be used in conjunction with a generator set and/or renewables. BESS can help maintain engine health, preventing the generator set from running on a non-optimal load.  

When and Where You Need it: Dispatching BESS

When it's time to call upon your energy storage, whether it's to discharge your energy quickly for grid stability or a slower transition from renewable sources to battery, your BESS product can either manually or automatically dispatch power. You can even monitor energy market conditions and avoid energy peak charges. All of this is made possible with our Distributed Energy Resource Management (DERM) software, Cat AMP. Watch our Cat AMP demo to see how we can help you. 

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White Paper: Nothing but the BESS

Find out why integrating BESS for temporary power is an ideal way to optimize your site. This white paper provides guidance on identifying suitable applications for these advanced battery systems and covers benefits such as lower genset runtime, power resiliency, peak shaving, reduced noise, and lower emissions.

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Battery Energy Storage Systems XES energy storage unit and mobile generator
Battery Energy Storage Systems XES energy storage unit and mobile generator

Saving $6,000 a month in fuel costs with BESS solution

Caterpillar’s Tucson Proving Ground in Arizona upgraded its decades-old, diesel-powered guard gate with a compact hybrid microgrid system in February 2025. The installation – featuring 58 solar panels, a 24 kW Cat XES60 battery storage unit, and a backup diesel generator – now powers the site efficiently and quietly, saving approximately $6,000 per month in fuel costs. 

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TPG gatehouse showing a guard speaking to a person in a car
TPG gatehouse showing a guard speaking to a person in a car

Keep Learning

XES60 Product Walkaround Video

Introducing the XES60, a new mobile battery energy storage system that supplements traditional mobile power solutions to reduce noise and enable deployment of renewable energy sources.

Mobile Energy Storage + Generator Sets = The Ideal Combination

Adam Logue, Senior Account Representative with Cat Rental, discusses how Energy Storage Systems (ESS) can help you deal with emissions goals, noise requirements, and rising fuels costs. Hear how ESS plus a generator set can deliver an optimal energy solution.

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Mobile Energy Storage + Generator Sets = The Ideal Combination
Mobile Energy Storage + Generator Sets = The Ideal Combination

New Energy Storage Safety Requirements

Greg Hasler returns to speak to us about new and evolving safety regulations for ESS.

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New Energy Storage Safety Requirements
New Energy Storage Safety Requirements

Serving Diverse Industries

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.

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Electric Power News

Read the latest electric power news and articles relating to Cat electric power products by people in the know, on topics that matter to your business.  

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