Solar Permit Plan Sets and Estimating for Solar Installers

Solar Permit & Design Services are the drawings and calculations submitted to the AHJ and utility to permit and interconnect a photovoltaic (PV) system: site and roof plans, array layout, single-line diagram, equipment data and labels.

Solar installers win on speed. We prepare permit-ready plan sets and estimates so your crews spend less time waiting on paperwork. Each plan set is built to the AHJ and utility requirements you send us and revised promptly after plan-review comments.

What a solar plan set includes

• Cover sheet, project data and code references
• Site plan and roof plan with array layout, setbacks and fire access pathways
• Electrical single-line diagram with conductor and overcurrent sizing
• Equipment schedule and specification sheets for modules, inverters and racking
• Roof attachment and structural references; engineering letter coordination where required
• Required placards and labels, including rapid-shutdown labeling where applicable

Codes and utility interconnection

PV systems are generally governed by NEC Article 690 (solar PV systems) and Article 705 (interconnected power production sources), plus local amendments and utility interconnection requirements. We prepare the drawings to the requirements your AHJ and utility publish. Structural or electrical letters that need a licensed engineer's seal are coordinated through a licensed professional.

Solar estimating

We estimate modules, inverters, racking, electrical balance-of-system, trenching, conduit and labor for roof, ground-mount and carport systems. See solar estimating and solar permit plan sets.

What you receive

• Permit-ready PV plan set
• Single-line diagram and equipment schedule
• Roof attachment and structural references
• Labels and placards
• Revisions after AHJ or utility comments
• Solar estimate for materials and labor

Technical scope and terminology we work with

• PV array layout, string sizing and inverter configuration
• Single-line diagram, overcurrent protection and grounding
• NEC 690 and 705, rapid shutdown and labeling
• AHJ plan review, utility interconnection and net metering
• Roof structural capacity, attachments and engineering letters
• Residential, commercial, ground-mount and carport systems

Who this service is for

Residential and commercial solar installers and EPCs who need a reliable back-office design partner.

How it works

1. Send site details, roof photos or measurements, equipment selections and AHJ/utility information.
2. We confirm scope and turnaround.
3. We prepare the plan set.
4. We revise after AHJ or utility comments.

Software, standards and file formats

We work in PlanSwift and Bluebeam Revu for digital takeoff and markup, Excel and RSMeans-style cost data for pricing, Oracle Primavera P6 and Microsoft Project for scheduling, and AutoCAD-compatible formats for drawings. Deliverables are provided as Excel, PDF and, where relevant, DWG files, organized by CSI MasterFormat.

When to use this service

Use solar permit & design services when a bid date is close, when your team is stretched across projects, when you need an independent check of your own numbers or drawings, or when you want consistent deliverables in the same format every time. Tell us the due date when you request a quote so the schedule can be planned around it.

Engagement options

• One project: order solar permit & design services for a single bid or job and receive a firm price and turnaround before we start.
• Several trades or divisions: combine this service with related scopes so quantities, drawings and pricing agree.
• Bid-season capacity: send multiple projects with their due dates and we schedule the work to hit each one.
• Ongoing support: repeat-volume contractors can agree standard formats, cost codes and turnaround so every delivery drops straight into their process.

Quality control, confidentiality and communication

Every deliverable is reviewed by a second team member before it reaches you, and assumptions, inclusions and exclusions are written down so they can be checked. If information is missing we send a short list of questions rather than guessing, and we tell you which assumption we used when a question cannot be answered in time. Your plans, specifications and files are used only to prepare your project work and are not shared publicly; see our privacy policy.

Related services, guides and pages

• Construction estimating and quantity takeoff
• Pre-bid, solicitation response and post-bid support
• Shop drawings, structural drafting and permit drawings
• Public bid estimating, pricing, samples, FAQ and bidding glossary

Residential, commercial and ground-mount PV

Residential rooftop projects are driven by roof geometry, setbacks and the existing electrical service. Commercial rooftop projects add structural capacity, ballast, penetrations and interconnection complexity. Ground-mount and carport systems add civil, foundation and trenching scope. We prepare drawings and estimates for each, working to the AHJ and utility requirements you provide.

Typical workflow for installers

1. Intake: address, system size, equipment, utility and AHJ.
2. Site design: roof planes, array layout and string design.
3. Plan set: site plan, roof plan, single-line diagram, equipment schedule, labels.
4. Submittal and revisions: AHJ plan review and utility comments.
5. Estimate and permit-to-install coordination.

Frequently requested solar documents

• Permit plan sets and single-line diagrams
• Structural attachment details and roof load coordination
• Equipment cutsheets and label sets
• Takeoff and pricing for materials and labor