Every published 123eSolar system is built to tow behind a three-quarter-ton pickup, and that platform ends at 18 kW continuous. Above it the same architecture keeps going: inverters in parallel, more than one platform, and — past what a hitch can move — large off-grid solar power systems built into containers.
We build to three platforms as one system.
The published catalogue is bounded by what a Ford F-250 can legally and safely tow, loaded, to a site with no grid. That is the machine we build: one trailer, one setup, one service call, and 18 kW of continuous output at the top of it. The sizing calculator answers inside that envelope because every answer it gives names a system you can order today.
Nothing about the electronics stops there. The inverters the line is built on are designed to be paralleled, and each carries a published limit on how far. Past one trailer the constraint stops being electrical and becomes mechanical: what moves, what it stands on, and how it is interconnected.
Each row is a platform we build on: what it delivers continuously, and how many of itself the hardware is rated to run beside. Those two multiplied are the electrical envelope. The last column is ours: three platforms is what we undertake to build, deliver and support as one system, and it is the figure to plan against.
| Continuous output | Delivered as | Battery bus | Rated in parallel | We build to 3 |
|---|---|---|---|---|
| 10 kW | Split-phase 120/240 V | 48 V | up to 12 (120 kW) | 30 kW |
| 12 kW | Split-phase 120/240 V | 48 V | up to 12 (144 kW) | 36 kW |
| 18 kW | Split-phase 120/240 V | 48 V | up to 12 (216 kW) | 54 kW |
| 30 kW | Three-phase 120/208 V | ≥300 V | up to 10 (300 kW) | 90 kW |
Every figure is read from the published rating of the hardware we build with, held in our own component library. A platform with no published parallel limit is not listed. The ratings are the hardware's; the system around them is ours.
The same towable machine, more than one of it, paralleled on the AC side. The build stays the one we already publish — same trailer, same array, same 48 V bank, same service parts — and the site gets as many as the load needs.
Three of the largest published platform is 54 kW — well inside what the inverter's own sheet permits, and still three machines to tow, site and service.
Our commercial platform delivers 30 kW continuous as three-phase 120/208 v, on a ≥300 V battery bus rather than the 48 V the towable line runs, with up to 39 kW of array behind it. It is a different machine, not a bigger version of the trailer.
This is where containers start. A three-phase system on a high-voltage bank is not something you hitch to a pickup, and we do not pretend otherwise.
The battery module we build with holds 5.3 kWh at 52 Vdc, and it is the module the published line already runs. What changes above the line is not the battery — it is how the array is wired.
The towable line wires the modules in parallel. Every published trailer runs this way, and it is the bank the sizing calculator sizes.
Rated to 15 modules in parallel.
The commercial platform wires the same module in series for its high-voltage bus. That needs added hardware the parallel build has no use for — a different array, not a bigger one.
Rated to 16 modules in series.
One module across the whole range is one spare to stock, one supply to hold and one thing for a crew to know. Listed UL 1973 · UL 9540 (as a system) · UL 9540A · IEC62619 · CE UN38.3.
Tell us what has to stay powered, for how long, and where it stands. If it fits the published line the calculator will say so; if it does not, an engineer will.
