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. These costs below are listed at full rate, before the federal incentive, so true net cost will be 26% less. 

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
Site Survey (if you are unable to provide pictures) $200
Clay Tile Roof
Concrete Tile Roof
Roof Pitch ≥ 32° $0.15/watt
Flat Roof with Ballast Mounts
Flat Roof with Penetrating Mounts
Critter Guard $0.15/watt
Trenching  $10/ft
Attic Run $500
200A/225A Main Panel Upgrade
≈ $3,250
400A Main Panel Upgrade
≈ $5,000
Add Electric Subpanel $750
Electric Panel Derate $650
4 or more arrays  $500
Installer Travel > 4 hours round trip
Installer Travel > 7 hours round trip
Under 4kW system size (DIY) $1,000
Under 4kW system size (full install) $2,000
Ground Mount (12kW minimum) $0.75/watt
Ground Mount DIY Equipment $0.50/watt

*Auto included in the Project Solar quoting calculator.