Utility bill first. Roof, panel, meter, and usage files help confirm the right system design when available.
Required and recommended items for design, shading, utility, and financing review.
Recent bill with usage and account details.
Front elevation or driveway view.
Roof plane or roofline image.
Main service panel and label.
Utility meter and surrounding area.
Usage history, spreadsheet, or PDF if available.
Any extra site, utility, or roof document.