# Pairing Solar With Fleet and Workplace EV Charging: A Commercial Facility Playbook More commercial facilities are adding electric-vehicle charging every year — to electrify delivery and service fleets, to offer employees and customers a workplace amenity, and to meet tightening California requirements. It's the right direction. But there's a catch a lot of owners discover only after the chargers are installed: EV charging is a large new electrical load, and if you plug it into the grid without planning, it can drive your utility costs — especially demand charges — sharply upward. The facilities that get this right treat charging, solar, and storage as one connected system rather than three separate projects. Done that way, you electrify your operation *and* keep control of your energy bill. Here's how to think it through. ## Why EV charging changes your energy profile A bank of commercial chargers can add a substantial spike to your peak demand, particularly if multiple vehicles charge at once. Because demand charges are set by your single highest interval of the month, a fleet plugging in together at shift's end — or a row of workplace chargers ramping up at 9 a.m. — can create a costly new peak that follows you all month. Add the fact that vehicles often charge when the sun is down (overnight fleet charging) or during expensive time-of-use windows, and unmanaged charging can quietly become one of the more expensive things your facility does. ## How solar and storage change the equation This is where an integrated design pays off. **Solar** offsets the energy cost of charging during daylight — ideal for workplace and customer charging that happens through the business day, and for fleets that can charge midday between routes. **Battery storage** is the piece that tames demand charges. The battery absorbs the spike when vehicles charge, drawing from stored energy instead of pulling a surge from the grid, and recharges when it's cheap or when solar is overproducing. It also lets you store daytime solar to charge vehicles at night — pairing your cleanest, cheapest energy with overnight fleet operations. **Smart charge management** ties it together, staggering and modulating charging so vehicles are ready when needed without all drawing power simultaneously. Software that sequences charging is often as important as the hardware itself. ## Fleet vs. workplace: different problems The right design depends on who's charging. **Fleet charging** is predictable and demanding — the same vehicles, on known schedules, often needing a full charge by a set departure time. That predictability is an advantage: it lets a system be engineered precisely around your duty cycles, with storage and charge scheduling sized to guarantee vehicles are ready without blowing up demand charges. **Workplace and customer charging** is more variable and doubles as an amenity or draw. Here the goals include covering an expected number of sessions, offering reliable availability, and sometimes recovering costs through paid charging — while still managing the load against your existing operations. Many facilities need both, which makes the integrated approach even more valuable. ## Plan the infrastructure for where you're going One of the most expensive mistakes is building only for today. Trenching a parking lot, upgrading electrical service, and running conduit are major costs — and doing them once for your eventual footprint is far cheaper than redoing them each time you add chargers. A good design roughs in capacity for future charging even if you're installing only a few ports now. That "make-ready" thinking — pre-wiring for growth — is exactly the forward planning California's EV-ready building rules push toward, and it saves real money as your fleet or demand expands. ## Why one accountable team is the difference Solar-plus-charging projects live or die at the integration points. The charger vendor doesn't size your battery. The solar installer doesn't configure charge management. The electrician doesn't model your demand profile. When these are separate contracts, the owner becomes the systems integrator by default — and inherits every gap between them. OM Energy designs, permits, installs, and supports solar, storage, and EV charging as one accountable team, with no handoffs. That means the load modeling, the array, the battery, and the charge management are engineered to work together from the start — and one team stands behind how the whole system performs. ## What to do next Before you buy chargers, map your charging need: how many vehicles or sessions, on what schedule, needing how much energy by when. Then look at that demand against your current utility bill and rate structure. That picture tells you whether solar and storage should be part of the plan — and for most commercial facilities adding meaningful charging, they should be. Electrification is coming to nearly every commercial fleet and facility. The owners who plan for it as an integrated energy system, rather than a charger bolted to the wall, are the ones who electrify without watching their utility bills climb. *Adding EV charging or electrifying a fleet? OM Energy can model your charging load and design solar, storage, and charging as one system — one accountable team, start to finish.*