Site plan
Shows property boundaries, roof footprint, array location, setbacks, and access paths for emergency services and installers.
Accurate drawings reduce permitting delays, support correct material ordering, and lower installation risk by showing exact component placement and electrical connections required for inspection and interconnection agreements.
Several stakeholders create, review, or depend on solar design drawings at different project stages.
Clear roles and accurate drawings reduce rework and speed approval; include the right level of detail for each reviewer.
Signs and stamps structural and electrical calculations where required. Responsible for ensuring system design meets applicable codes and local jurisdictional requirements; provides professional seal for permit sets when regulations demand.
Produces CAD or PDF plan sets including site plan, roof layout, single-line diagrams, and equipment schedules. Coordinates with installers and permitters to incorporate utility interconnection and code-required labeling.
Shows property boundaries, roof footprint, array location, setbacks, and access paths for emergency services and installers.
Provides module layout, row spacing, mounting details, and penetrations to confirm attachment and weatherproofing decisions.
Includes load calculations, rafter/joist attachment details, and any required reinforcement or engineering stamp where jurisdictions require it.
Details stringing, inverter locations, conductor sizes, combiner boxes, grounding, and AC point of interconnection.
Lists modules, inverters, rapid shutdown devices, fire labels, and their model numbers for procurement and verification.
Offers symbol legend, code references, label templates, and installer notes to ensure consistent interpretation.
Manufacturer data for modules, inverters, and mounting hardware to demonstrate compliance with performance and listing requirements.
Electrical load calculations, voltage drop, and structural load worksheets signed by an engineer when required.
Annotated photos showing roof conditions, obstructions, and proposed attachment locations for reviewer context.
Operational and safety instructions, rapid shutdown descriptions, and labeling templates required by code.
| Field | Configuration |
|---|---|
| File format | PDF/A for archival and PDF compatibility with permit portals |
| Versioning | Use unique revision numbers and Effective Date fields |
| Reviewer order | Design → Engineer → Owner → Permitting authority |
| Authentication | Use email or multi-factor sign-in for auditor attribution |
Electronic submission and e-signature tools must support large PDF sets, audit trails, and secure signer authentication for professional stamps.
Choose a platform that preserves signatures and audit records for permitting and long-term retention while matching local authentication expectations.
Submit before planned install start to allow review time; local review times vary.
File utility interconnection concurrent with permit to prevent delays in commissioning.
Schedule final electrical and building inspections after installation but before utility connection.
Allow contingency for rework: 2–4 weeks typical for minor plan corrections.
Keep final signed as-built drawings with O&M manuals indefinitely or per regulatory retention rules.
Complete site measurements, geolocation, and shading study before detailed layout.
Validate layout, stringing, and structural assumptions with the installation team.
Submit stamped drawings and supporting documents to local permitting authority.
Coordinate electrical and building inspections then finalize utility interconnection paperwork.
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting Price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free Trial | 7-day free trial | Varies | Varies | Varies | Varies |
| Bulk Send | Yes (Premium) | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| HIPAA Compliant | Yes | Yes | Yes | No | No |
A city project required stamped structural calculations
An installer prepared as-built drawings after roof repairs