Why GHG Phase 2 May Mean More Electric Vehicles
Battery-electric vehicles may be just the ticket for truck makers looking to meet Phase 2 of greenhouse gas emissions requirements in the medium-duty truck sector.

Battery electric vehicles offer GHG credit multipliers and will help OEMs offset vehicles with diesel engines, especially in the medium-duty and vocational domains.
Photo: Jim Park
The stars seem to be aligning for a significant rollout of battery-electric vehicles in the 2021 model year, the first year of the truck/tractor portion of Phase 2 of the greenhouse gas emissions regulations. And that spells an opportunity for truck makers.
Several truck makers have suggested that meeting GHG Phase 2 requirements for medium-duty and vocational vehicles will be more challenging than for on-highway vehicles. And that makes BEVs ideal candidates to replace diesel engines in any number of segments where the technology suits the application.
The regulations that will apply to vocational and heavy-duty pickup trucks and vans call for reductions in CO2 and fuel consumption of 24% and 16%, respectively, by 2027. Through the magic of credits earned on more-efficient vehicles, they can turn to less-drastic measures at first to meet requirements for the more difficult cases.
“For every electric vehicle an OEM puts into the medium-duty domain, there is a multiplier that can offset, I believe, up to five diesel trucks [the rule says 4.5],” says Darren Gosbee, vice president of engineering at Navistar. “It will be advantageous to an OEM to have electric vehicles in their portfolio. It’s a very good route to corporate averaging.”
Being smart about BEVs
The National Renewable Energy Laboratories did a comparison study in 2016 of PepsiCo’s Frito-Lay North Americas diesel and electric vehicles operating in the Seattle area. NREL found that average daily driving time for both electric and diesel units was just 1.5 hours, with most of the electric vehicles running less than 45 miles per day and consuming significantly less (55 kWh) than the battery’s 80 kWh capacity.
Details of this study were described in the recently released guidance report from the North American Council for Freight Efficiency, Electric Trucks: Where They Make Sense. NREL said that fleets using such vehicles could gain additional efficiency by matching routes to the vehicle’s capabilities. “The new technology may permit rethinking operations to better tune them to the capabilities of the BEVs, rather than forcing the BEVs to duplicate the diesel duty cycles,” NACFE noted.
It’s easy to see where BEVs can make sense for highly sophisticated fleets like PepsiCo or UPS. But a large chunk of the heavy-duty pickup truck and van market are not truckers at all, but bakers, plumbers, and sales people who use their trucks as tools. They will have a much higher degree of range anxiety, and therefore a greater reluctance to embrace BEVs. To that end, Isuzu is planning an evaluation project in the next year that will see five trucks placed into customers’ hands in five different parts of the country to see how they measure up to real-world situations.
“We want to see if our testing translates to the real-world experience, where people drive their trucks like they stole them,” says Brian Tabel, executive director of marketing for Isuzu Commercial Truck of America. “Assuming the trucks meet that challenge, the next hurdle to wide adoption will be infrastructure, and today’s grid isn’t ready for that demand.”
Related: How GHG Phase 2 Will Change the Way You Spec Trucks
More Fuel Smarts

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 →
Lessons Learned About Alternative Fuels: Start Small, Stay Flexible
Practical advice on adopting alternative fuels and ZEVs from HDT's 2026 Top Green Fleets, from renewable diesel and natural gas to electric trucks.
Read More →
Kempower Adds Flex EV Charger to Help Support Transition to Megawatt Charging
The Kempower Mega Satellite Flex has both a CCS and MCS connector, allowing operators to serve both types of heavy-duty vehicles.
Read More →
Hino Adds Electric Class 6/7 Truck
Hino says the Le Series is an important step in the company's efforts to reduce environmental impact and support its customers’ sustainability goals.
Read More →

