It looks like it uses the vehicle's onboard power systems, presumably diesel. https://www.linkedin.com/posts/serkan-k-b4b841a8_laser-air-defense-activity-7221442716847509504-t7JM/
"Power and Thermal Management:
- Integrated Power Supply: The system is designed to draw power from the vehicle’s onboard power supply, with additional provisions for dedicated power sources to ensure sustained operation."