Setting up a new system or adding to one of our existing kits?
Whether you have an existing fan or kit, you're setting up a new system, or you have questions about how to add and expand a system, our System Designer is here to help. Pay a one-time design fee to unlock our System Designer, and we'll size a complete, buildable system to your location—then you can order your entire specified system in one place.
- Focused on solutions that work best for your location and setup
- Live solar data for accurate sizing
- Single-line diagram with real parts
One flat fee unlocks the Western Harmonics System Designer and covers the full design of a solar system built around the products we sell.
- Guided chat that scopes your system
- Live solar sizing from your location
- A single-line diagram with real parts
- Revisions until the design is right
- One-click checkout for the full build
Prefer a hands-on design partner?
Our System Designer above builds a complete system for you. If you'd rather work through a larger or custom build with a partner, system design with Western Harmonics products can also be run at PowerMosaics.com.
How it works
A simple path from idea to a fully specced, orderable solar system.
Tell us what to power
A guided chat asks which Western Harmonics product you want to run and how you plan to use it.
Size it to your sun
Share your location and we pull live solar data to size storage and panels for year-round performance.
Get your system
We generate a single-line diagram, a full parts list, and a running total you can revise with us.
Lock it and order
Happy with the design? Lock it and check out the entire build in one click.
See what you get
Every design comes with a clear single-line diagram and a downloadable bill of materials priced from our catalog. Here's an example.
Single-line diagram
A labeled diagram showing how every component connects—panels, charge controller, battery bank, inverter, and loads—with wire gauges and run lengths called out.

Downloadable BOM
A branded bill of materials you can save as a PDF, priced from our current catalog.
Western Harmonics
Solar System Design
Design reference 4C7A9F2B
| Product | Role | Qty | Total |
|---|---|---|---|
| Solar Floor Fan 20" | Load | 2 | $299.98 |
| 50Ah LiFePO4 | Storage | 1 | $85.00 |
| 100W Solar Panel | Source | 2 | $238.00 |
| Charge Controller | Controller | 1 | $59.00 |
| Connector Cable Kit | Accessory | 1 | $24.00 |
| Subtotal | $705.98 | ||
The System Designer can configure a new off-grid system or create a system around one of our products.

Why design with us
This is a focused version of the same system-design engine our team uses, tuned entirely around the fans, PowerJam, and accessories we sell. You get a real, buildable design without leaving Western Harmonics.
- Every part comes from our catalog
- Storage and panels sized to your location
- Revise the design in a live chat
- Check out the whole system in one order
FAQ
System Designer questions
What the design fee covers, how sizing works, and how you order the finished build.
How much does a solar system design cost?
The System Designer costs a one-time $19.99 design fee. That unlocks the full guided designer for your project — there is no subscription and no per-revision charge. Existing customers get the designer free.
What do I get for the design fee?
You get a complete, buildable off-grid solar system sized to your location: a single-line diagram, a full parts list drawn entirely from the Western Harmonics catalog, and a running total you can revise with us in a live chat until it fits your needs.
Can I order everything in one order?
Yes. Once you lock your design, every part in the system — fans, PowerJam, panels, batteries, and accessories — checks out together in a single order. There is no need to add each item to your cart separately.
What information do you need to size my system?
Just what you want to power and where you are. The guided chat asks which Western Harmonics product you plan to run and how you use it, then pulls live solar data for your location to size storage and panels for year-round performance.
Do I need to already be off-grid to use the designer?
No. The designer works whether you are building a brand-new off-grid setup, adding to an existing Western Harmonics kit, or expanding a system you already own. Tell us what you have and what you want to add, and we size the rest around it.