Build a System Wizard

Design your perfect solar system with the Portlandia Electric Supply System Builder Wizard. Whether you're a homeowner exploring energy independence or a contractor bidding a commercial project, our interactive tool guides you through panel selection, inverter pairing, battery sizing, and balance-of-system components to create a complete, code-compliant solar kit.

How the System Builder Works

Our wizard breaks complex system design into simple, guided steps:

  • Step 1: Define Your Load — Enter your monthly kWh usage or upload a utility bill. The wizard calculates your required array size based on your location's solar irradiance.
  • Step 2: Choose Your Panels — Select from Tier 1 manufacturers like Qcells, Thornova, CW Energy, and Mission Solar. Filter by wattage, efficiency, frame color, and BABA compliance.
  • Step 3: Match Your Inverter — The wizard automatically recommends string inverters or microinverters based on your array configuration, shading conditions, and grid requirements.
  • Step 4: Add Battery Backup — Optional battery sizing for whole-home backup, critical loads, or time-of-use arbitrage. Choose from EG4, Tesla, Battle Born, and SOK.
  • Step 5: Balance of System — Racking, conduit, wire, disconnects, and monitoring—everything needed for a complete installation.

System Builder Features

What makes our wizard different from generic online calculators:

  • Real-Time Pricing — Live wholesale pricing from our inventory, updated daily
  • Compatibility Engine — Automatic validation that panels, inverters, and batteries work together
  • NEC Compliance Check — Voltage drop calculations, string sizing, and grounding verification
  • 3D Roof Visualization — Upload satellite imagery and see panel placement with shading analysis
  • Quote Generation — One-click PDF proposal generation with equipment list, pricing, and warranty details
  • Pro Account Integration — Save designs, duplicate for multiple sites, and order directly from your saved quote

Who Should Use the System Builder?

  • Homeowners — Explore solar options and get a realistic equipment list before talking to an installer
  • Contractors — Generate professional quotes in minutes instead of hours
  • Commercial EPCs — Rapid preliminary designs for client proposals and RFP responses
  • Off-Grid Enthusiasts — Size standalone systems with accurate load analysis and battery autonomy calculations

Get Custom Quote → | Apply for Pro Account →

Explore Build a System Wizard with Portlandia Electric Supply. We offer wholesale pricing on code-compliant solar and electrical equipment for professional contractors and DIY installers.

Ready to Get Started?

Shop code-compliant solar equipment at wholesale prices. Pro contractors save up to 40% with a free Pro Account.

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Build a System Wizard