Going Electric: Challenges of Charging Commercial Trucks
Megawatt EV Charging System Tested at Electric Island
A dozen medium- and heavy-duty vehicles came together for testing of a megawatt charging system at Daimler Truck North America’s Electric Island.

Nearly 60 CharIN member companies conducted conformance and interoperability tests at the Electric Island charging facility in Portland.
Photo: CharIN

The Testival at Daimler Truck North America's headquarters was the first time that the medium- and heavy-duty vehicle industry was the focus of a CharIN testing event.
Photo: CharIN
A dozen medium- and heavy-duty vehicles came together for testing of a megawatt charging system at Daimler Truck North America’s Electric Island in Portland, Oregon.
The Charging Interface Initiative (CharIN), a global industry association pushing electrification of transportation, recently hosted a North American Conference and Interoperability Testing Event of the new Megawatt Charging System standard to North America.
It was the first time that the medium- and heavy-duty vehicle industry was the focus of a CharIN testing event.
Global automotive manufacturers, charging station companies, component suppliers, energy providers, government officials, research institutes, influencers, and grid operators gathered at DTNA’s headquarters in Portland, Oregon, Oct. 4-7 for the Sixth CharIN North America Conference and Testival event.

The North American Megawatt Charging System Launch was held in the lobby of DTNA's headquarters.
Photo: CharIN
During the event, more than 300 representatives from 58 CharIN member companies conducted conformance and interoperability tests at the Electric Island charging facility in Portland.
Electric Island was created in a collaboration between DTNA and Portland General Electric and specifically built with heavy-duty vehicles in mind. It provided an ideal location to host interoperability tests that involved the latest electric vehicles, electric vehicle supply equipment, electric control units, and communication controllers.
Earlier this year, four years after kicking off a task force on heavy-duty charging for commercial vehicles, CharIN E.V. demonstrated the Megawatt Charging System at the International Electric Vehicle Symposium in Oslo, Norway.
The MCS, with DC fast charging connector for heavy-duty electric vehicles, was developed to create a worldwide standard. It combines the benefits and the features of the Combined Charging System (CCS) with a new connector design to enable a higher charging power. The MCS is designed for a charging voltage of up to 1,250 volts and 3,000 amps.
More Fuel Smarts

Cummins Adjusts 2027 Engine Rollout After EPA Proposal
The engine maker will gradually introduce its new Model Year 2027 diesel engines while continuing to offer current models during the transition, citing the EPA's proposed emissions rule changes.
Read More →
EPA Proposal Could Ease 2027 Truck Costs and Buying Uncertainty
The proposal doesn't change the tougher NOx standard, but it would revise key implementation requirements that manufacturers say have driven up costs and complicated fleet purchasing decisions.
Read More →
Cummins, Paccar Ease DEF Derates After EPA Guidance
Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant with EPA emissions standards.
Read More →
Maintenance in the Messy Middle Part 3: Biodiesel
Biodiesel can reduce emissions, improve fuel-system lubricity and use existing diesel infrastructure. But NACFE’s Messy Middle maintenance report says fleets must actively manage storage, cold-weather operation, filters and oil drain intervals to avoid problems.
Read More →
Enhance Fleet Performance with High-Efficiency Auxiliary Power Units
Drive sustainable cost savings while increasing driver comfort during short- and long-haul logistics operations.
Read More →
Maintenance in the ‘Messy Middle’ Part 2: Renewable Diesel Fuel
NACFE's latest Messy Middle Powertrain Service & Maintenance report says renewable diesel gives fleets an opportunity to reduce carbon emissions without changing trucks, fueling infrastructure or maintenance practices. But technicians still need to understand several important operational differences.
Read More →
The Diesel Engine Enters NACFE’s ‘Messy Middle’
NACFE’s new Messy Middle Powertrain Service & Maintenance report says keeping modern diesel engines running now depends as much on software, diagnostics and data as traditional mechanical service.
Read More →
DTNA Software Update Gives Truckers More Time Before DEF Derates Take Effect
The changes reflect EPA guidance aimed at reducing downtime caused by emissions-system faults while maintaining compliance requirements.
Read More →
New Agentic Predictive Maintenance Report Demonstrates How Degraded Aftertreatment Systems Waste Fuel
Questar analyzed a large mixed-class fleet and discovered it was wasting as much as $30 in fuel per vehicle, per day, because of mechanically degraded aftertreatment systems.
Read More →
New York City's Microhub Project is Delivering Results
Trucking, last-mile delivery companies, and environmental advocates like what they are seeing so far with New York's microhub program.
Read More →

