Solar Design Services
PV layouts and single-line diagrams engineered to fit the site, maximize array output, and move cleanly through plan review — for residential and commercial projects.
Who this service is for
- Solar installers who need a design partner to handle layout and diagrams for incoming projects
- EPC companies scaling volume without adding in-house design staff
- Contractors who need plan sets that match specific equipment and site conditions
What's included
Site-matched PV layout
Module placement based on roof geometry, setbacks, shading obstructions, and available mounting area.
String & electrical sizing
String configuration and conductor sizing matched to the selected module and inverter.
Single-line diagram
A permit-ready single-line diagram documenting the system from array to point of interconnection.
Equipment specification sheets
Cut sheets for modules, inverters, and racking compiled for the plan set.
Residential Solar Design
Rooftop PV layouts for single-family and multi-family homes: module placement around roof obstructions and setbacks, string sizing for the selected inverter, and a permit-ready single-line diagram. Scoped around common residential roof types (composition shingle, tile, metal) and typical 120/240V service configurations.
Commercial Solar Design
Larger low-slope or ground-mount arrays with more complex electrical distribution — multiple inverters or combiner panels, three-phase service considerations, and coordination with commercial AHJ plan-review requirements. Scope is set per project based on system size and site conditions.
How solar design services works
1. Site & equipment info
You submit project address, roof/site details, and selected module/inverter equipment.
2. Layout drafted
Our design team lays out the array around obstructions, setbacks, and shading.
3. Single-line prepared
Electrical single-line diagram and string sizing are documented.
4. Design delivered
You receive the design package, ready to move into permitting.
Information we'll need
Have this ready when you submit a design request:
- Project address and roof/site type
- Module brand, wattage, and quantity
- Inverter brand, wattage, and quantity
- Proposed system size
- Roof material, and rafter size/spacing where applicable
- Main service panel bus rating, location, and breaker size
Deliverables
What you'll receive back:
- PV layout drawing
- Single-line electrical diagram
- String sizing calculations
- Equipment specification sheets
Start your design request
Submit project and equipment details and our design team will begin layout and single-line work.
Solar Design Services — frequently asked questions
Yes — see the residential and commercial sections above for how scope differs between the two.
Provide the brand, wattage, and quantity for your selected equipment on the design request form and our team will confirm compatibility with the design.
The PV layout and single-line diagram produced here feed directly into the permitting package, so equipment and site details only need to be submitted once.