Brooklyn EV Depot Powers 88 Fast-Charge Spaces
- Demand Charge Reduction EVs Fleet & Depot Charging News
Marin Holt
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- 8 minutes read
- XCharge North America and Energy Plus developing 88-space EV charging depot in Williamsburg, Brooklyn
- 9.46 MWh on-site battery storage buffers 44 XCharge GridLink fast chargers rated up to 300 kW
- System charges battery at off-peak rates and discharges during peak demand, avoiding grid spikes
- Energy Plus operates under the Eplug brand targeting dense urban charging markets
- Facility scheduled to open Q2 2026 and serve as a replicable model for other U.S. cities
A new EV charging depot in Williamsburg, Brooklyn uses 9.46 MWh of on-site battery storage to serve 88 charging spaces without imposing peak demand spikes on the local distribution circuit. Developed by XCharge North America and Energy Plus under the Eplug brand, the project is scheduled to open in Q2 2026 and is designed as a replicable model for dense urban markets.
How the System Works
The depot uses 44 XCharge GridLink charging units, each rated up to 300 kW. Rather than drawing directly from the utility grid at high demand levels during peak charging hours, the units are fed by the 9.46 MWh battery bank. Batteries charge during off-peak hours, typically overnight, when grid capacity is available and electricity prices are at their lowest. During peak demand periods, the battery discharges to meet EV charging load, absorbing the demand spikes that would otherwise require a costly service entrance upgrade.
The 88-space facility serves both individual EV owners and commercial fleet operators who need fast turnarounds and reliable uptime. The behind-the-meter battery buffer allows the site to support high simultaneous charging demand that would exceed what a standard distribution service connection could deliver without triggering demand charges or requiring a utility substation upgrade.
Why This Matters
Urban EV charging depots face a structural problem: a site with 44 fast chargers, each capable of 300 kW, has a theoretical peak load of 13.2 MW. No urban distribution circuit in a dense neighborhood handles that cleanly. Battery buffering resolves the conflict by spreading grid draw across 24 hours instead of concentrating it during peak demand windows.
The economics of battery-backed urban EV charging are straightforward. New York’s demand charges for commercial customers run $15 to $30 per kW per month. A site that cuts peak demand by 5 MW saves $75,000 to $150,000 per month in demand charges alone. Battery storage with a 9.46 MWh capacity can absorb and re-dispatch that load, and the payback timeline is measured in years, not decades.
The model has California precedent. NFI Industries in Ontario, California combined 1 MW of solar with 7 MWh of battery storage to charge 50 electric trucks, funded through a $27 million state grant. WattEV’s Bakersfield depot pairs 5 MW of solar with 3 MWh of batteries alongside 6 MW of grid power for a 119-acre truck charging site. The Brooklyn project brings the same behind-the-meter storage architecture to a dense urban setting where rooftop solar is not the primary generation source.
Implementation Details
XCharge North America supplies the GridLink charging hardware. Energy Plus operates the site under the Eplug brand. No public financing terms have been disclosed for the Williamsburg project.
Energy Plus describes the project as a template for rollout to other major U.S. cities. The key design variables that determine replicability are land cost, local demand charge structures, and the ratio of overnight available grid capacity to daytime EV demand. Cities with high demand charges and constrained daytime distribution capacity, a profile that fits most dense U.S. metro areas, favor this architecture over direct-grid charging approaches.
The Q2 2026 target places the Williamsburg depot in operation as New York City accelerates its commercial fleet electrification mandates under Local Law 97 carbon compliance requirements. Fleet operators in the five boroughs face firm emissions limits starting in 2024 for large buildings and escalating through 2030, creating direct demand for high-throughput urban charging infrastructure.
Source: Electrek, January 8, 2026
Critical Analysis
44 XCharge GridLink chargers operating simultaneously produce six-pulse rectifier harmonic currents at the service entrance. Battery buffering at 9.5 MW reduces grid-facing peak demand from charging, though solar export periods may challenge local hosting capacity limits.
5-Year Projection
By 2031, operational data from facilities like this will become the standard requirement for securing interconnection agreements, as ISOs prioritize proven Battery Storage profiles.
Critical Perspective
This 9.5 MWh battery buffer aims to avoid costly grid upgrades for 88 fast-charge spaces. However, a similar NFI Industries project in California paired 1 MW solar with 7 MWh storage for 50 trucks. California’s Public Utilities Commission previously approved a 2017 mandate for 1.3 GW of storage, much of which remains underused. Will this Brooklyn model truly scale without further grid investment or regulatory intervention?
