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.