San Marcos, CA · San Diego County
Electric Vehicle Supply Equipment (EVSE) Load Calculation Worksheet
This worksheet helps residents or contractors calculate electrical demand for proposed electric vehicle supply equipment (EVSE) work at a project address.
What this form is
Use the worksheet to calculate the home’s general lighting load, appliance and equipment loads, and total demand in amps for proposed EVSE work. It compares that demand with the existing electrical service rating: the worksheet says no service upgrade is necessary if demand is lower, and an EVSE permit may be issued if a panel upgrade is included when demand is greater. Enter actual equipment values when known and note items not present.
Who needs it
Residents or contractors planning EVSE work can use this worksheet to calculate the project’s electrical demand and compare it with the existing service rating.
How to submit it
Submit it to the city department named on the form; check the city website for current contact details.
About notarization
No notary block appears on this worksheet, and it lists no sworn attachment or related notarized step.
How to submit this form
- 1
Download The Worksheet
Download the EVSE load calculation worksheet PDF.
- 2
Complete The Load Entries
Enter the home’s square footage, circuit counts, equipment loads, project address, and other requested calculations.
- 3
Gather Additional Sheets
Attach additional sheet(s) if needed to list more appliances or equipment.
- 4
Submit To The City
Submit it to the city department named on the form; check the city website for current contact details.
Frequently asked questions
- What does the EVSE load calculation worksheet calculate?
- It totals the listed lighting, appliance, equipment, and air-conditioning loads, then divides total demand by 240 volts to calculate amperage.
- When is a service upgrade needed?
- The worksheet says no service upgrade is necessary when the calculated amperage is less than the existing electrical service rating. If greater, an EVSE permit may only be issued if a panel upgrade is included.
- Do I need a notary for the EVSE load calculation worksheet?
- No. The worksheet has no notary block and lists no sworn attachment or related notarized step.
- How do I submit the EVSE load calculation worksheet?
- Submit it to the city department named on the form; check the city website for current contact details.
Need something notarized?
This Electric Vehicle Supply Equipment (EVSE) Load Calculation Worksheet doesn’t need a notary — but if you have another San Marcos form that does, a commissioned online notary can help.