1
Your Panel
Used only for electricity rates. Nothing is stored.
Select your utility to use its actual rate instead of the state average.
sq ft
60A
100A
125A
150A
200A
320A
400A
Check the main breaker in your panel box. Most homes built after 2000 are 200A.
120/240V Split Phase
Standard US residential.
Pre-1970
1970s–80s
1990s–2000s
2010s+
Don't know
2
Current 240V Loads
Toggle on what's already connected to your panel. Adjust amps if you know the exact breaker size.
3
What You Want to Add
Toggle on the upgrades you're considering. Search for specific models to use exact electrical specs.
4
Heavy 120V Loads (optional)
Space heaters, window ACs, and other high-draw 120V appliances▼
How many of these do you run at the same time? We use typical amp draws to approximate the load.
Space heaters, oil-filled radiators, baseboard heaters, hair dryers (nearly all 1,500W)
Window & portable ACs, dehumidifiers, large fans
Current Panel Utilization
After Your Upgrades
Load Breakdown
Current Loads
| Load | Demand |
|---|
Planned Upgrades
| Load | Demand |
|---|