Resource Center

Firefighters responding to a rooftop solar PV emergency, highlighting persistent electrical hazards, system shutdown limitations, and responder safety.
Solar Electrical Safety for First Responders
Solar PV systems generate direct current electricity whenever sufficient light is present — regardless of whether utility power has been interrupted, the inverter has been shut down, or disconnect switches... Read more...
Electric vehicle charging station emergency with damaged DC fast charger, firefighters, electrical hazards, and a controlled safety perimeter.
Electric Vehicle Charging Station Emergencies
Electric vehicle charging station emergencies can involve utility electrical infrastructure, premises wiring, charging equipment, charging cables, the connected vehicle, and the vehicle’s high-voltage traction battery — sometimes simultaneously. This guide... Read more...
Damaged electric vehicle stabilized with cribbing and rescue struts, highlighting the underfloor traction battery, high-voltage components, and manufacturer-approved stabilization points.
Safe Vehicle Stabilization Around High-Voltage Systems
Vehicle stabilization at EV and hybrid crash scenes requires more than conventional technique — traction battery packs, HV cables, and energized components may occupy areas traditionally used for cribbing, struts,... Read more...
Firefighters respond to an electric vehicle battery fire, illustrating thermal runaway, toxic gas, stranded energy, reignition risk, and the high-voltage traction battery pack.
EV Battery Fires and Thermal Runaway
EV battery fires and thermal runaway present hazards that differ from conventional vehicle fires in ways that matter operationally — including delayed fire development, reignition after apparent suppression, stranded energy,... Read more...
Cutaway electric vehicle showing high-voltage battery pack, orange HV cables, inverter, drive motor, charger, charge port, and other components for first responder identification.
Recognizing High-Voltage Components in Electric Vehicles
Recognizing high-voltage components in electric and hybrid vehicles is a foundational first-responder skill — and it is not the same as knowing how to de-energize them. This guide covers traction... Read more...
Damaged electric vehicle at an emergency scene with firefighters, EMS, and law enforcement managing high-voltage hazards, stored battery energy, fire and reignition risks, and scene control.
Electric Vehicle Electrical Safety for First Responders
Electric and hybrid vehicles introduce high-voltage shock, thermal runaway, fire, reignition, and submersion hazards that require specific awareness and operational discipline. This guide covers EV identification, high-voltage hazards, crash damage,... Read more...
First responders and utility crews manage storm-damaged electrical infrastructure, including downed power lines, flooding, debris, and damaged buildings.
Electrical Safety Following Storm and Disaster Damage
Post-disaster electrical scenes are not single-hazard incidents. Storms and disasters create multiple, simultaneous, and changing electrical hazards — downed conductors, flooded equipment, secondary energization, generator backfeed, and utility restoration operations... Read more...
Emergency responders and apparatus positioned at a safe distance from a downed power line across a road, with a utility crew vehicle approaching the scene.
Utility Electrical Emergencies and Scene Control
Utility electrical emergencies require first responders to recognize hazards that may be invisible, establish scene control before the electrical condition is known, and coordinate with the serving utility — not... Read more...
First responders assess a flooded building from behind an electrical hazard perimeter, with floodwater surrounding partially submerged electrical panels and equipment.
Electrical Hazards in Flooded Buildings
Flooded buildings can contain electrical hazards that are hidden, submerged, and supplied from multiple energy sources. Loss of utility power does not establish electrical safety. This guide covers hazard recognition,... Read more...
Vehicle beneath downed power lines on a wet roadway as fire and police crews maintain a safe perimeter, highlighting electrical hazards, occupant safety, and utility coordination.
Vehicle Contact With Power Lines: First Responder Safety
When a vehicle contacts an energized power line, the vehicle, surrounding ground, and nearby conductive objects may all become part of the electrical hazard. This guide covers hazard recognition, occupant... Read more...
First responders secure a storm-damaged roadway with a downed power line, illustrating electrical hazards, scene control, and utility coordination.
Downed Power Line Safety for First Responders
Downed power lines can remain energized, re-energize without warning, and create electrical hazards that extend well beyond the visible wire. This guide covers scene size-up, ground-potential hazards, secondary energization, apparatus... Read more...
Firefighters assess a fire-damaged building with exposed electrical wiring, damaged service equipment, utility lines, and standing water, highlighting electrical hazards around damaged structures.
Electrical Safety Around Damaged Buildings and Structures
Fire, collapse, flooding and severe weather can expose or damage electrical systems while leaving dangerous energy sources present. Learn how first responders can recognize electrical hazards around damaged buildings and... Read more...