Project Solar Additional Costs (Adders)

Solar Adders Explained

Our quoting calculator is accurate in most situations, but every solar project is different. In about 20% of jobs there are a unique "adders" that can add cost to the job total.

When purchasing solar it is important to do your research and to know your costs. We do our best to be as transparent as possible by providing upfront quotes without having to talk to a sales person. 

Our quoting calculator already includes the base rates below and is based on the address provided. All other prices are NOT already included and would need to be added to your total cost manually.

If you are unsure if an adder applies to you, our engineering team will let you know before the contract is signed and before any money is committed. 

Base Install Rate Default State* $0.50/watt 
Base Install Rate Exception States (GA/NJ/PA/MT/OR and New England)* $0.70/watt
Roof Tile - Clay (no tile adder in CA) $0.15/watt
Roof Tile - Concrete (no tile adder in CA) $0.15/watt
Roof Pitch > 35° $0.15/watt
Roof Flat - Ballast $0.15/watt
Roof Flat - Tilt $0.35/watt
Critter Guard $0.15/watt
Ground Mount $0.60/watt
Trenching  $10/ft
Attic Run $500
200 amp Main Panel Upgrade $2,750
400 amp Main Panel Upgrade $5,000
Add Subpanel $750
Panel Derate $500
4 or more arrays  $500
Travel - 4 hours round trip $450
Travel - 7 hours round trip $650
Under 4kW system size* $500
Under 2kW system size* $1,000
Ground Mount (12kW minimum) $0.60/watt

*Auto included in the project solar quoting calculator.