US Army Tests Electric Vehicles with Gas Backup Power

The US Army is giving electric vehicles another serious look, and this time the approach might actually stick.

After years of cautious experiments with vehicle electrification, the Army is now testing a practical middle ground. Electric trucks paired with gas-powered generators could deliver the benefits soldiers need without the range anxiety that has plagued earlier attempts.

The concept isn't new to civilian drivers. Chevy pioneered the idea with its Volt back in 2009, letting drivers cruise on battery power while keeping a gas tank as backup. Today, companies like Scout Motors report that most customers ordering their new electric vehicles are choosing the range extender option.

But the Army's interest runs deeper than just saving fuel at the pump. Defense vehicles spend three quarters of their time sitting still with engines idling to power communications, weapons systems, and other equipment. That idling burns 30 to 60 percent of total fuel, creating massive logistics headaches and costs.

Electric truck maker Harbinger just partnered with defense supplier Rheinmetall to build autonomous military vehicles using this hybrid approach. Their platform runs on batteries that get recharged by a gas generator when needed, allowing for silent operations and reduced heat signatures that could give troops a tactical edge.

The Army has already seen promising results from simpler battery systems. Anti-idling kits tested on medium tactical vehicles are saving 10 to 20 percent on fuel. Maj. Gen. Michelle Donahue told National Defense Magazine that advanced battery systems could eliminate 12 of the Army's 40 fuel truck companies.

Why This Inspires

The military's embrace of electric technology shows how practical solutions can emerge when organizations focus on real problems rather than ideology. The Army isn't going electric to make environmental statements. They're doing it because relying on a single fuel source creates dangerous vulnerabilities.

Major Curtis Cranston pointed to Russia's failed 2022 invasion of Ukraine as a cautionary tale. Russian forces abandoned hundreds of combat vehicles after running out of fuel in a 40-mile convoy outside Kyiv. Hybrid electric vehicles offer better reliability and tactical advantages that could prevent such disasters.

The partnership between Harbinger and Rheinmetall has already submitted proposals under the Army's special acquisition program designed to accelerate new technologies. More companies are expected to follow as the military opens additional opportunities for electrification projects.

Electric military vehicles could transform how armies operate while proving the technology works in the most demanding conditions imaginable.