Solar Design Form

ℹ️ Important: Local Web Server Required

This form must be accessed through a web server (not by opening the file directly).

Quick start: In the tools folder, run npx serve or python -m http.server 8000 then open the URL shown in your browser.

Customer Information

Customer Name *

Address *

Coordinates *

APN *

Utility *

AHJ (Authority Having Jurisdiction) *

Panel Information

Main Bus Rating (A) *

Breaker Rating (A) *

Panel Type *

MAIN SUB

Design Criteria

Wind Speed (MPH) * Basic wind speed @ 3-sec gust

Ground Snow Load (PSF) * Ground snow load in pounds per square foot

Structure Type(s)

Select all that apply *

Single Story Residence Two Story Residence ADU (Accessory Dwelling Unit) Duplex Multi-Family Commercial Agricultural

Drawing Information

Drafted By *

QC By (optional) Leave blank to hide from output

PRN (Project Reference Number) *

Date *

Roof and Array Information

Total Roof Area (sq. ft.) *

Total Array Area (sq. ft.) Calculated: # of modules × 21.02

Equipment Specifications

Module Specifications

Panel Preset Select a preset to auto-fill module specs

Module Manufacturer *

Module Model *

Module Power / Pmax (W) * Maximum power rating per module in watts

Module Weight (lbs) Weight per module in lbs

Open Circuit Voltage – Voc (V) Open circuit voltage at STC

Max Power Voltage – Vmp (V) Voltage at maximum power point

Short Circuit Current – Isc (A) Short circuit current at STC

Max Power Current – Imp (A) Current at maximum power point

Module Efficiency (%) Module efficiency at STC

Module Dimensions Length × Width × Depth (inches or mm)

Inverter Type

Inverter Type *

Microinverter String Inverter

Microinverter Specifications

Microinverter Manufacturer *

Microinverter Model *

Microinverter Power Rating (W) * AC power rating per microinverter

Voltage * Operating voltage (e.g., 240V)

Output Current (A) * Continuous output current in amps

Microinverter Weight (lbs) Weight per microinverter (default: 2.43 lbs)

CEC Weighted Efficiency Default: 0.97 (97%)

Additional Equipment

Select any additional equipment included in the installation:

EG4 Equipment

EG4 All Weather Batteries EG4 Gridboss

Additional Equipment Notes

Module and Inverter Configuration

Number of Branches * Will be labeled A, B, C, etc.

Total Number of Modules Calculated from branch details

Total Number of Microinverters Calculated from branch details

System Sizing

System Size DC (W) Calculated: # of modules × module power

System Size AC (W) Calculated: # of microinverters × inverter power

System Size CEC AC (W) Calculated: AC × CEC weighted efficiency

Site Information

Number of Sites (MP-01, MP-02, etc.) *

Hardware Quantities

Number of Mid Clamps *

Number of End Clamps *

Number of Penetrations (Flashfoot2s) *

Rail Length (ft) *