Existing main service panel is: ❓

• Federal Pacific Panel
• Zinsco Panel
• Sylvania Panel
• Pushmatic Panel
• Glass Fuse Main Disconnect

Visible damage to the panel: ❓

• Burn marks anywhere on or around the panel
• Rusted panel or internal components
• Physical damage to breakers or bus bar

Meter is located inside the home or is obstructed by: ❓

• Decks or any permenant outdoor strcutures
• Home additions or enclosures

Point of interconnection is in a non-code-compliant location: ❓

• Inside a closet, bathroom, or any confined space
• Less than 3’ of clearance around panel (Ex. HVAC, Water Heater, Gas Meter)

1. What is the panel brand? ❓

2. Are there signs of damage? ❓

3. Is the meter located inside or obstructed? ❓

4. Is the interconnection to the main service code compliant? ❓

5. Total Solar System Size (kW)

6. Main Panel Breaker Size (Amps)

⚠️ Disclaimer: This calculator is provided as a helpful guide only. It does not guarantee whether a Main Panel Upgrade (MPU) will be required. Final determination will be made by a qualified engineer.