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Get a Free QuoteABB Terra wins corridor and metro DCFC on US service depth. Kempower wins depot deployments on dynamic power sharing that reshapes the utility service bill.
Corridor · Public DCFC · 180–360 kW
Depot · Power Unit + Satellites · up to 400 kW
Choose ABB Terra for corridor and metro DCFC where dedicated peak power per port matters and mature US service coverage is critical. Choose Kempower for fleet depots where dynamic power sharing across many simultaneous sessions materially reduces the required utility service.
Every other trade-off flows from this one choice.
Each plug gets guaranteed peak power, always. Utility service must sum all four ports at full draw — 720 kW of service needed for 4 × 180 kW.
Power shifts to whichever ports are drawing. Service sized to concurrent load, not peak sum — 600 kW of service feeds the same 4 ports.
Fourteen dimensions from NuWatt’s DCFC scoping checklist. Five dots = best-in-class; emerald check marks the per-row winner.
Installed pricing reflects NuWatt engineering estimates Q1 2026 including transformer, trenching, concrete pad, commissioning. Varies with utility service upgrade requirements.
Modeled for a Massachusetts municipal-fleet depot, 4-port at 180 kW. National Grid make-ready + MassEVIP DCFC rebate + Section 30C at the 30% PWA tier applied.
The $174K delta is dominated by avoided utility service upgrade (–$100K) and lower hardware + civil (–$100K). For depot-pattern use where vehicles arrive staggered, Kempower is fundamentally more capital-efficient. For corridor DCFC where all four ports must hit 180 kW simultaneously, ABB is the correct spec.
Three questions. DCFC-grade answer.
Public / corridor DCFC with peak-power guarantees expected?
Site is rural or outside Kempower service partner metro radius?
Fleet / depot / transit yard with staggered plug-in schedule?
The utility service cost delta determines the winner more often than the hardware sticker price.
Service depth wins when a port outage costs $600+/day.
Utility service savings alone pay for hardware premium.
Kempower depot side, ABB public-facing corridor plugs.
NuWatt is certified on both platforms. We’ve delivered the hybrid municipal pattern on two MA and NJ sites in the last 18 months. The picking rule is geometry + duty cycle, not brand preference.
Spec'd four dedicated 180 kW ports for a depot that never draws concurrent peak. Utility upgrade over-sized by $100K+.
Service partner 3+ hours out. A 24-hour outage at a remote port is $400–$900/day/port in lost revenue.
Filing packages improving but still need engineer back-and-forth on TCEQ/MassEVIP. Budget 2 extra weeks for rebate paperwork.
Kempower is purpose-built for depots where many vehicles plug in on variable schedules and need to share a finite power budget. ABB Terra HP is stronger for established high-throughput corridor or public DCFC where each port needs dedicated peak power. For a mixed-use depot, Kempower's Movable Power Unit and Station Charger architecture is materially better.
Last verified by NuWatt Engineering Team on 2026-04-14.
NuWatt is certified on both ABB and Kempower. We'll model your depot or corridor with actual utility service constraints, TCEQ/MassEVIP eligibility, and Section 30C stacking.