Fleet electrification is one of the few decarbonization levers that is simultaneously visible, popular internally and reasonably well understood commercially. It is also one of the easiest to overstate. Replacing a diesel van with an electric one moves the emissions rather than eliminating them, and whether that move is a reduction depends almost entirely on where the electricity comes from.
Grid intensity decides the answer
A battery electric vehicle has no tailpipe emissions, so its Scope 1 contribution goes to zero. The energy it consumes appears instead in Scope 2. The question is whether the Scope 2 addition is smaller than the Scope 1 reduction, and that turns on the carbon intensity of the grid supplying the charger.
In a grid running largely on hydro or nuclear, electrification is close to an unambiguous win. In a coal-heavy grid, the advantage narrows considerably — though it rarely disappears, because electric drivetrains are far more efficient than combustion ones. The efficiency gap is what keeps EVs ahead even on relatively dirty grids.
Duty cycle matters more than range anxiety
Most failed electrification pilots we have reviewed failed on duty cycle, not on range. A vehicle that returns to a depot each night and runs a predictable urban route is close to ideal. A vehicle doing irregular long-haul with unpredictable stops is not, at least not yet.
- Depot-return urban delivery: strong candidate, charge overnight on cheaper, often cleaner off-peak power
- Employee shuttles and campus fleets: strong candidate, fixed routes and predictable dwell time
- Regional distribution: viable with route planning and depot charging, needs modelling
- Long-haul heavy freight: still constrained, and honest assessment usually says wait
The sequencing implication is straightforward. Electrify the predictable segments of the fleet first. They deliver reductions immediately and they build the internal charging and operations capability you will need later.
Charging infrastructure is the real project
Organisations consistently underestimate this. The vehicles are a procurement exercise. The charging is a construction and electrical engineering project, with grid connection lead times that can exceed the vehicle delivery schedule by a wide margin.
Plan the connection capacity for the fleet you intend to have, not the pilot you are running. Retrofitting additional capacity after the fact is materially more expensive than provisioning it once.
Accounting for it properly
Under the GHG Protocol you will report charging electricity under Scope 2, using both location-based and market-based methods. The location-based figure uses the grid average where the charging happens. The market-based figure reflects any renewable procurement you have contracted.
This is where claims get sloppy. A dual reporting result of "zero emissions" under the market-based method does not mean the vehicles caused no emissions. It means you procured attributes covering that consumption. Both numbers are legitimate, and describing only the flattering one is what gets organisations into trouble.
Electrification without renewable procurement is a real but partial reduction. Renewable procurement without electrification does nothing for your fleet at all. The two are complements.
Embodied emissions, honestly
Battery manufacturing carries a significant embodied carbon cost, and an EV therefore starts its life with a larger footprint than an equivalent combustion vehicle. Lifecycle studies consistently find the crossover point falls well within normal commercial vehicle life, typically within the first two to three years of ordinary duty. The embodied cost is real, and it is not a reason to defer.
Where it does matter is in replacement timing. Scrapping a serviceable three-year-old diesel to buy an EV is worse than running it to end of life and replacing it then. Align electrification with your natural fleet renewal cycle wherever the duty cycle allows.