When facing a schedule to electrify your fleet, you’ve probably realized that this isn’t only about swapping out diesel vehicles for electric ones. The real challenge? Making sure your local electric grid can get you the power you need when your fleet of refuse trucks, street sweepers, or service vehicles all plug in at the end of the day.
Camber Charging has worked with hundreds of municipalities and agencies across the country and we know that coordinating with your local utility isn’t just a box to check—it is the difference between successful electrification and a project that stalls out before a single charger gets installed. The good news is that with the right approach to infrastructure planning, you can avoid delays, take advantage of funding that is still available, and build a depot charging system that scales with your fleet for decades to come.
Let’s walk through how to get this right.
Understanding Your Grid Capacity: Start Here, Not at the End
Here’s a miss we see all the time—fleets get excited about EV charging solutions, they spec out their vehicles and even apply for grants, only to discover that their garage or depot doesn’t have enough electrical capacity to power their fleet.
Grid capacity planning needs to happen early in your electrification process, not as an afterthought. Before you commit to specific electric service vehicles or charging infrastructure, you need to understand whether your existing electrical service can support your planned charging load—or if upgrades will be necessary.
The scope of this assessment varies significantly based on your fleet size. If you’re deploying a half-dozen Level 2 chargers and a couple of DC fast chargers for a small municipal fleet, your electrical requirements—and potential upgrade needs—will be substantially different than a large transit depot. The key is right-sizing your infrastructure to match your actual use case, not overbuilding for capacity you don’t need.
If your current capacity matches or exceeds your projected charging needs, you’re in good shape. You can move forward with charging infrastructure installation without major electrical work. However, many municipalities discover they’ll need at least some level of upgrade to safely and reliably support fleet charging at scale.
If there’s a gap between your current capacity and future needs, you’ll need to understand three critical numbers:
- Your depot’s current electrical service capacity (measured in kilowatts or megawatts)
- The total charging load your fleet will require (based on vehicle types, duty cycles, and charging schedules)
- The gap between these two numbers—and what it will cost to close it
Start by scheduling a preliminary meeting with your utility provider. Come prepared with basic information: your facility’s current electrical service, your vehicle inventory, and your electrification timeline. Most utilities have dedicated commercial or municipal account teams who’ve worked through these conversations before.
During this initial discussion, ask about:
- Current transformer and service panel capacity at your depot
- Whether your existing service can support your planned charging load
- Utility upgrade timelines if needed (these can stretch 12-24 months in some regions)
- Available incentive programs for infrastructure upgrades
- Time-of-use rate structures that could impact your operating costs
Industry research consistently shows that electrical infrastructure planning should begin 18-24 months before vehicle deployment. Municipalities that engage utilities during the planning phase—rather than after vehicle procurement—avoid significant project delays and better position themselves for available utility incentive programs.
Energy Management Strategies: Getting More from Your Existing Infrastructure
Even if you need utility upgrades eventually, smart energy management can help you maximize your existing electrical capacity while those upgrades are in progress—or potentially reduce the size of upgrades you need altogether.
Load management systems are your best friend here. These systems intelligently distribute available power across your charging stations based on real-time demand, vehicle charging needs, and utility rate structures. Think of it as a traffic controller for electricity—making sure power flows where it’s needed most without overloading your electrical service.
For municipal fleets with mixed vehicle types—everything from compact sedans to heavy-duty bucket trucks—this becomes especially valuable. A load management system can:
- Prioritize charging for vehicles with early-morning routes
- Reduce charging rates during peak demand periods (when electricity costs more)
- Automatically adjust power distribution as vehicles complete charging and unplug
- Provide data on actual energy consumption to inform future infrastructure decisions
Recent studies through EnergyHub on fleet electrification demonstrate that intelligent load management can reduce required electrical capacity by 25-30% compared to unmanaged charging scenarios, significantly lowering infrastructure upgrade costs. Smart charging strategies also reduce total cost of ownership through optimized energy management and demand charge reduction.
The technology for this already exists in modern EV charging stations. When evaluating depot charging solutions, make sure your charging infrastructure includes robust energy management capabilities. It’s not just about the chargers themselves—it’s about the intelligent software managing the whole system.
Coordinating Utility Upgrades: Timeline, Costs, and Who Pays What
Let’s be honest: utility upgrades for government fleet charging solutions aren’t cheap, and they don’t happen overnight. But understanding the process—and the funding landscape—can make this significantly more manageable.
Not every municipal deployment requires extensive utility work. Smaller projects—like installing a handful of Level 2 chargers for light-duty vehicles—may only need minor service panel upgrades or none at all. Larger depots supporting heavy-duty vehicles with high-power DC charging will typically require more substantial electrical infrastructure investments.
Typical utility upgrade timelines break down like this:
- Initial assessment and proposal (2-3 months): The utility evaluates your needs and provides preliminary cost estimates
- Engineering and design (3-6 months): Detailed planning for transformer upgrades, trenching, service panel installations
- Permitting and approvals (1-3 months): Navigating local building departments and right-of-way requirements
- Construction and installation (3-8 months): The actual physical work, which can be weather-dependent
Add it all up, and you’re looking at 9-20 months from your initial conversation to having upgraded electrical service—assuming no major complications. Infrastructure deployment research shows that utility coordination represents one of the most common causes of project delays in fleet electrification. This is why early coordination matters so much.
Now for the money question: Who pays for these upgrades? The answer varies considerably by utility and jurisdiction, but here’s the general landscape:
Many utilities offer “make-ready” programs where they cover a portion of infrastructure costs, particularly for upgrades that benefit the broader grid. Utility investment in transportation electrification infrastructure has grown significantly in recent years, with many offering programs that cover 50-100% of electrical service upgrades up to the customer’s meter.
This is also where municipal EV grant funding becomes critical. The federal government committed $7.5 billion through the Bipartisan Infrastructure Law for EV charging infrastructure, with programs specifically designed to support public and municipal fleet charging. The Federal Highway Administration’s Charging and Fueling Infrastructure program provides competitive grants for strategic deployment of charging and alternative fueling infrastructure. At Camber Charging, we help clients navigate these funding applications and always include detailed utility upgrade costs in the budget, because grant administrators understand these are necessary project expenses.
For public works fleet charging specifically, look into:
- State energy office programs that specifically support municipal electrification
- Federal programs like the Charging and Fueling Infrastructure (CFI) grants
- Utility-specific incentives for load management technology and off-peak charging
The Department of Energy’s Alternative Fuels Data Center maintains a comprehensive database of federal and state incentives that can significantly offset infrastructure costs, with some municipalities securing 50-70% funding coverage for total project costs.
Building for Scale: Today’s Needs, Tomorrow’s Fleet
Here’s where strategic thinking really pays off: your electrical infrastructure investment needs to serve not just today’s electrification plans, but where your fleet will be in 5-10 years.
That said, bigger isn’t always better. The goal is to right-size your infrastructure to match your specific use case—not to oversubscribe to power capacity you don’t need or install chargers with capabilities that exceed your operational requirements. A thoughtful approach considers:
Future vehicle classes: Even if you’re starting with light-duty vehicles, will you eventually need to support heavy-duty trucks or even megawatt charging for the largest equipment? The CharIN initiative on megawatt charging for commercial vehicles is advancing rapidly, with standards now established for high-power charging of heavy-duty vehicles. However, if your fleet plan calls for sedans and light trucks for the foreseeable future, Level 2 charging may be perfectly adequate—saving you both on equipment costs and electrical service upgrades.
Matching chargers to duty cycles: Not every vehicle needs DC fast charging. Understanding your fleet’s daily mileage, dwell time, and operational patterns helps you select the right mix of Level 2 and DC chargers. Overnight charging with Level 2 can handle most light- and medium-duty vehicles at a fraction of the infrastructure cost, while reserving higher-power DC charging for vehicles with demanding duty cycles or limited dwell time.
Charging technology evolution: Charging speeds continue to increase. Infrastructure that accommodates higher power levels gives you flexibility as technology advances and vehicle charging capabilities improve.
Depot layout: Think about physical space for additional EV charger installation. Trenching and conduit installation are expensive—if you’re doing utility work anyway, consider running extra conduit to future charging locations even if you’re not installing equipment there immediately.
Bidirectional charging potential: Vehicle-to-grid (V2G) technology is maturing. Infrastructure planning that accounts for potential bidirectional power flow positions you to potentially use your fleet as grid storage assets in the future—which could generate revenue or reduce demand charges.
We typically recommend municipalities plan electrical capacity for 125-150% of their immediate needs—but this doesn’t mean overbuilding. It means understanding your realistic growth trajectory and ensuring your infrastructure can accommodate it without requiring a complete rebuild. For smaller fleets, this might mean installing conduit for future expansion while starting with a modest number of chargers. For larger operations, it might mean sizing electrical service to support additional charging bays as your fleet transitions over time.
Making Utility Coordination Work: Partnership Over Process
The most successful municipal fleet electrification projects we’ve seen share one thing in common: genuine partnership between the municipality, the utility, and experienced infrastructure providers.
Your utility isn’t an adversary in this process—they’re a necessary partner with their own planning needs, budget cycles, and regulatory requirements. The earlier and more openly you can communicate your electrification timeline and requirements, the better they can support your transition.
Similarly, working with depot charging specialists who understand the full scope of what’s required—not just charger installation, but the entire electrical ecosystem—ensures you’re not discovering problems at the worst possible moment. This is where Camber Charging’s experience becomes invaluable—we’ve helped municipal clients navigate complex utility coordination, identify cost-saving opportunities through load management, and build infrastructure that scales alongside their electrification goals. Whether you’re installing your first few chargers or building out a comprehensive depot charging system, the right partner helps you avoid both over-investment and under-planning.
Grid capacity planning might not be the most exciting part of fleet electrification, but it’s absolutely foundational. Get this piece right, coordinate effectively with your utility, and leverage available funding programs, and you’ll build charging infrastructure that reliably supports your municipal fleet for years to come.
Ready to start planning your depot charging infrastructure?
At Camber Charging, we specialize in depot charging solutions for municipal and public sector fleets. Our team brings decades of combined experience in power infrastructure, utility coordination, and fleet electrification—helping municipalities navigate the complexity of building reliable, scalable charging infrastructure.
