Solar Pre-Design and 3D Solar Panel Design

Solar pre-design for EPC companies and installers: 3D solar layouts, shading analysis, PVsyst energy estimates and ROI projections, ready before you bid.

SOLAR DESIGN

What is Solar Pre-Design and 3D Solar Planning?

Solar pre-design, also called preliminary design, is the first phase in planning a solar project. It involves creating initial drawings and designs using software like SketchUp and BricsCAD. This process gathers data from sources such as Google Maps and site measurements provided by the client to develop a detailed 3D model.

This model helps visualize the solar installation, offering insights into shading, energy production, and financial returns. EPC companies use it to present accurate proposals to their clients. See how it works in our guides to solar 3D pre-design in India, rooftop shadow analysis and P50 and P90 yield reports, plus our bid-stage engineering checklist.

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Solar 3D Pre-Design by Heaven Designs

SERVICE SCOPE

What Pre-Design Includes

  • Initial phase of solar project planning
  • Uses software like SketchUp and AutoCAD
  • Creates a 3D model for visualizing the solar installation
  • Involves data collection from Google Maps and client-provided measurements
  • Includes reports like PVsyst energy forecasts, shading analysis, and ROI projections

Why Solar Pre-Design is Crucial

Accurate Project Planning

Early planning supports accurate resource allocation and realistic timelines

Enhanced Client Trust

Professional 3D visualizations build confidence and help close sales faster

Risk Mitigation

Identify potential shading and structural issues before installation begins

Informed Decision-Making

Data-driven insights from PVsyst reports support better investment decisions

Solar Pre-Design Benefits

Types of Solar Pre-Designs

Residential Rooftop

Optimized layouts for homes, with shading analysis and panel placement

Commercial & Industrial

Large rooftop layouts with roof load checks and yield estimates

Ground-Mounted

Utility-scale layouts with terrain analysis and row spacing studies

Sample Solar Pre-Designs

Solar Pre-Design Sample 1
Solar Pre-Design Sample 2
Solar Pre-Design Sample 3
Solar Pre-Design Sample 4

, Industries we serve

Built for every building type

Solar design and engineering for residential, commercial, industrial, utility-scale, and institutional projects worldwide.

Residential rooftop
Commercial & industrial
Utility-scale ground mount
Warehouses & factories
Schools & campuses
Hospitals & clinics
Hospitality
Government & public
Agri / rural solar
Hybrid / BESS-ready
Rooftop Ground mount Permit packages Detailed engineering

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Get a scope and price for this project

Tell us the site, system size and what drawings you need. We reply within 1 business day.

  • We reply within 1 business day
  • Plan check comments handled with you
  • No obligation, no retainer to start
“We have been working with Heaven Designs for our MW scale solar projects, and they have consistently delivered top-notch designs. Over the course of our partnership, they have successfully completed over 50 MW of projects for us. Their expertise, reliability, and dedication have made them a trusted partner for Apollo Solar.”
Mr. Dhaval Savani , Apollo Solar
Case study: 11 MW DC tin-shed rooftop, Gulf country →

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FAQ

Frequently asked questions

What is solar pre-design?
Solar pre-design is the preliminary stage of a solar project: a 3D model of the roof or site, a panel layout, shading analysis and an energy estimate. EPCs use it to size the system, price the job and present a proposal before detailed engineering starts.
What does a 3D solar panel design show?
A 3D solar panel design places the modules on a model of the actual roof or land, with obstructions, setbacks and nearby buildings. It shows how many panels fit, where shade falls through the year and what the finished system will look like to the client.
What software do you use for solar 3D design?
We build 3D models in SketchUp and BricsCAD or AutoCAD, and run energy estimates in PVsyst where the project needs one. If your team works in another platform, tell us at scoping and we confirm what we can deliver in it.
Is pre-design enough for permits?
No. Pre-design supports sales and planning. Permit packages and detailed engineering are separate services when you need authority submissions.
What inputs do you need?
Site location, roof or land measurements, target capacity if known, and any photos or drawings you already have.
How long does pre-design take?
Turnaround is agreed at scoping and depends on site complexity and data quality.

Ready for constructible design packages?

Solar engineering for EPCs. MEP design and BIM for AEC teams. Reply within 1 business day.