How Last Mile Fleets Can Start Charging EVs Now Without Waiting on the Grid

For last-mile fleet operators, the real barrier to EV adoption isn't the vehicles, it's the infrastructure. Power constraints, utility delays, and demand charges make electrification challenging. Brien Riff, Channel Sales Manager at OptiGrid, explains how battery-integrated charging with OptiGrid's Reservoir removes those barriers and how operators can have two routes running within weeks.

How does battery-integrated charging solve the top fleet concerns?

OptiGrid delivers 200 kW of charging power using ~66 kW of grid power, eliminating utility upgrades that cause 12–24-month delays and reducing demand charges by roughly 67%.

Most sites can be installed within weeks using existing power. For fleets with short four-to-six-hour overnight dwell windows, that matters because the Reservoir doesn't pull from the grid during peak hours. Across 10 units, 1.8 MWh of integrated storage absorbs peak load instead, reducing a 10-truck fleet's demand exposure from roughly 2 MW to about 600 kW.

How does OptiGrid scale with the fleet without requiring repeated utility upgrades?

A depot that starts with five Reservoir chargers for 10 trucks can scale to 15 chargers with no additional utility work. That is not possible with standard high-power chargers, which require new permits and re-engineering every time capacity expands.

OptiGrid connects to nearly any existing power source (240V single-phase, 208V or 480V three-phase) off a standard 100-amp breaker, and the same architecture holds as the fleet grows. No re-permitting. No re-engineering. Just add units on the same infrastructure.

Managing it all is OptiGrid's Asset Management Platform (AMP), which integrates with existing fleet telematics via OCPP, giving operators a single view across vehicles and chargers.

What does it take to get two routes quickly?

OptiGrid needs three things to get started: a property address, the vehicle specs for the intended routes, and a site visit to assess existing electrical infrastructure.

The address unlocks available incentives and rebates that can reduce project cost. The 30C tax credit, worth up to 30% of project cost, expires June 30, 2026. OptiGrid also qualifies for the 48E credit on its energy storage component through 2030.

From there, the team models the duty cycle and optimizes charger count for the specific operation, so operators know exactly what they need before any commitment is made.

Reservoirs are built to remove the infrastructure barriers that make fleet electrification feel out of reach.

Contact the team to walk through the power, deployment scope, or incentive eligibility for your site.