Electrical reference chart
EV Charger Load Management Worksheet Chart
Use this worksheet after the calculator result to document configured EVSE current, load-management method, existing service capacity, charging schedule, demand limit, and review path.
Quick reference table
An EV charger load management worksheet is different from an EV wire-size chart. It records whether charging is limited by service capacity, listed energy-management equipment, load sharing, operating schedule, tariff assumptions, and owner charging needs before circuit sizing is finalized.
EV load management record
| Worksheet item | Record | Review use |
|---|---|---|
| EVSE setting | Rated output, configured output, hardwired or receptacle method | Feeds circuit and demand screen |
| Service capacity | Existing service rating, load calculation result, spare capacity | Shows whether load management is required |
| Control method | Listed energy-management system, load sharing, schedule, manual setting | Defines what actually limits demand |
| Charging need | Daily kWh, charging window, number of vehicles, owner priority | Prevents undersized practical charging |
| Approval path | Utility, permit, manufacturer, AHJ, commissioning note | Keeps control assumptions reviewable |
Load management decision lanes
| Decision lane | Document before design | Why it matters |
|---|---|---|
| Single charger limit | Maximum EVSE output and locked setting | Wire and breaker review must match the configured limit |
| Multiple charger sharing | Number of EVSE units and sharing logic | Total demand may differ from nameplate sum |
| Service constrained project | Service load result and available capacity | Panel space is not proof of service capacity |
| Schedule constrained project | Charging hours, tariff window, priority load | Demand charge or owner needs can control the plan |
How to use this chart
Start with service capacity
Record the service load calculation result, panel rating, spare capacity, and whether the EVSE can operate without controls.
Document the control method
Write the listed energy-management equipment, load-sharing rule, configured output, schedule, and commissioning lockout method.
Connect to circuit review
Use the worksheet before opening wire-size, breaker, voltage-drop, and service-capacity checks for the EV branch circuit.
Formula basis
Managed charging screen = EVSE current setting constrained by service capacity, control method, schedule, and documented load-sharing rules.
- Configured EVSE current is the maximum charger output used for planning.
- Service capacity is the available capacity after the service or dwelling load review.
- Load sharing is the listed control method that limits one or more chargers or other loads.
- Charging schedule documents whether peak, off-peak, overnight, or fleet windows control demand.
Worked examples
Residential service-constrained EVSE
Record a 48 A EVSE limited by a listed load-management controller, the service load result, configured output, commissioning note, and AHJ follow-up.
Two-charger load sharing
Document two Level 2 chargers, shared maximum current, schedule, owner charging priority, circuit assumptions, and service-capacity review before finalizing branch circuits.
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Frequently asked questions
These answers explain how to use the chart without turning a quick reference into a final design decision.