Tools
Free tools to plan, size and wire your system. Use them before you spend a dollar, no account needed. We add to this page as we build.
Every tool in one place.
Start with the System Builder. The rest help you size, lay out and understand the parts.
System Builder
Pick a system type, drag real parts onto a live wiring diagram, and watch the engine check every connection as you go. You finish with a complete, code-correct kit and an open parts list.
Build a system →Roof Layout Tool
Lay out your roof face by face, drop panels where they really sit, and skip the spots a vent or chimney takes. It locks the exact rail, clamp and attachment counts for your kit.
In the workshopWiring Trainer: EG4 12000XP
Practice wiring the EG4 12000XP. Drag each cable to its terminal on an interactive diagram and learn the connections cold before you touch the real inverter.
In the workshopRoof Analyzer
Type in your address and see your real roof from above. It reads your roof faces, pitch and the way they point, so the layout starts already done and you just fine-tune it.
In the workshopLocal Code & Utility Lookup
Enter your address and get the permitting rules, your local building authority, and your power company's net-metering policy in one place. No phone calls.
In the workshopMore Wiring Trainers
Step-by-step wiring practice for the rest of the EG4 lineup, the 6000XP, the FlexBOSS inverters and the GridBOSS. One trainer per unit, same drag-to-wire format.
In the workshop
If you only use one, use the System Builder. It walks you through every choice and the other tools feed into it. Stuck on something specific? Ask us and we will point you the right way.