String design against real code limits
Maximum string voltage, temperature derating and NEC 690.7 requirements covered at the depth a design review actually checks, not a simplified rule of thumb.
Resources
Installation Whitepapers
Technical installation guidance, from string design to structural attachment, at the depth a design review actually needs.
Talk to our teamInstallation Whitepapers
Read technical solar installation whitepapers covering string design, structural attachment and NEC compliance. Installation guidance for the trade on Sunhub.
What this guide covers
Structural attachment by roof and mounting type
Attachment approach for shingle, tile, metal and ground-mount systems, covered with the load and spacing considerations a structural review looks for.
Equipment handling that protects warranty
Transport and on-site handling guidance that keeps micro-cracking and connector damage from voiding a manufacturer warranty before a system even goes live.
Who this is for
Installers and their design teams
Guidance targets crews and designers who need code-level detail, not a general overview of how solar installation works.
FAQs
Do installation whitepapers cover both residential-scale and commercial-scale work?
Yes, the whitepapers address both scales, covering string design, structural attachment, and equipment handling across roof and mounting types common to residential and commercial jobs. The depth is set for what a design review actually needs rather than a single project size. Design teams can pull the guidance relevant to the system they're building.
Are these guides updated when NEC code cycles change?
The whitepapers are written against real code limits and are maintained as NEC cycles move forward, since string design and other calculations depend on the version an AHJ enforces. Because adoption varies by jurisdiction, always confirm which code cycle your AHJ is on before finalizing a design. The guides aim to reflect current requirements rather than a fixed snapshot.
Does the guide cover equipment handling as well as design?
Yes, the whitepapers cover equipment handling alongside design topics like string sizing and structural attachment. Handling guidance matters because mishandling modules or components during installation can void a warranty, so it's treated as part of the technical scope. Design and handling sit together rather than in separate resources.