Power Grid Stabilization (PGS) Heavy Duty (HD)

Power Grid Stabilization (PGS) Heavy Duty (HD)

The Cat® PGS Module is a scalable, rapidly deployable energy storage system with a heavy-duty battery structure. The PGS integrates with solar and other renewable sources to provide short duration ...
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Technical Summary

Transient Assist
Module Type
Heavy Duty mobile Grid Stabilization
Rated Power
1000-1260 kW

System Output Power

Maximum Continuous at 1.0 PF
15 min Overload at 1.0 PF
10 min Overload at 1.0 PF
5 min Overload at 1.0 PF
1 min Overload at 1.0 PF

Output Voltage THD

Output Voltage

Energy (Nameplate Start of Life)

Energy (Nameplate Start of Life)
Energy Type
Li-Ion - Energy
Battery Chemistry

Inverter Model

Inverter Model
Number of Inverters

Average Parasitic Load

Shore Power Connection
480 V (60 Hz)


Container with Trailer - Length
Container with Trailer - Width
Container with Trailer - Height
Container without Trailer - Length
Container without Trailer - Width
Container without Trailer - Height


  • Transient Ride Through & Stabilization
  • Seamless mode transfer
  • Islanding detection
  • Static VAR compensator
  • Reserve Power Capacity
  • Plug-and-Play parallel ready
  • Energy Storage Management
  • Human-Machine Interface (HMI)
  • Fire Suppression System
  • Modbus TCP/IP Communications Protocols
  • Ambient Temperature Capability -40°C to +50°C

Reliable, Scalable, and Mobile

The Cat PGS module is a robust, mobile energy storage platform. The module consists of a pre-engineered container that is easily installed on site. Multiple modules may operate in parallel with other power sources to provide increased power output and/or increase the energy capacity.

Renewable Integration

The modules are designed to work with an array of renewable systems, including solar and wind. Seamless integration with the Cat Microgrid Master Controller (MMC) allows for maximum renewable penetration and full asset control.

Grid Stabilization

The Cat PGS protects against many typical power problems, including power failure, voltage sags/surges, and under/over frequency conditions.

Cat® Bi-Directional Power (BDP) Inverters

The Cat BDP inverters are the core to the energy storage system. Based on technology developed for Cat electric drive machines, the Cat BDP provides exceptional reliability, durability, and features that include:

  • Intelligent controls for the charging and discharging of the energy storage equipment.
  • 2 per unit fault current capability
  • Static VAR compensator
  • Four-quadrant output power factory control
  • Patented Non-Linear droop control for ultra fast response
  • Seamless mode transfer
  • Automatic anti-islanding
  • Grid forming
  • Grid following
  • Autonomous mode or Remote-Control mode
  • Parallel ready - multiple modules may be used in parallel to increase total output to 100+MW

Energy Storage

  • Advanced lithium-ion batteries provide good energy density, high discharge/recharge efficiency, and high cycle life.
  • Heavy duty battery structure provides vibration isolation during transport.


  • Grid firming/grid stabilization
  • Generator set transient assist
  • Black Start Capability/ Rig Up Power
  • Reserve Power Capacity

Standard Equipment: