Electrical panel planning in McLean, VA
Large luxury homes in McLean often require 400A service to handle multiple EV chargers, pool pumps, and extensive HVAC systems. Use the calculator below to estimate whether your existing service may support a major new load.
Start with capacity
Load calculator for McLean
Use your main breaker size and major appliances. Local permits and final sizing still require a licensed professional.
Configuration
Used for the general lighting estimate.
Usually printed on the main breaker.
Appliance wattages are typical planning estimates. Use the nameplate or installer calculation for final sizing.
Your planning result
Main planning load: Central A/C · 4.5 kW typical estimate
Is your service large enough for a 100A plan?
Choose the main breaker size above to compare this estimate with your existing service.
Local planning context
What to budget and verify
Estimated 200A upgrade range
Do I need a permit in McLean?
Yes. Electrical service upgrades in McLean always require a building permit and a final inspection by the city or county to ensure NEC compliance.
Can I do it myself?
Generally, no. Service panel replacements involve working with live utility lines. Most local codes in VA require a licensed electrician for the main service connection.
Plan the electrician conversation
Local matching is not configured yet. Keep the estimate and review the likely project scope before contacting a licensed professional.
Read the panel upgrade guide