How this machine carries the load.

123-SG-4D41 is a 10 kW solar generator with no engine: ten 460 W panels, a 21.2 kWh lithium iron phosphate bank in four arrays, and an inverter rated 10 kW continuous, all on a two-axle trailer. It is built for sites where noise, exhaust and fuel deliveries are not welcome, and for loads that work by day and ease off at night.

The inverter sets the 10 kW continuous rating and delivers 120/240 V or 120/208 V at 50/60 Hz, with a 5 ms transfer and 97.6% conversion efficiency. It surges to 24 kW for 10 seconds, enough to start compressors and pumps. The bank is programmed to deliver up to 9.62 kW, so at sustained full output it is the battery, not the inverter, that sets the pace.

The 4.6 kW array harvests 19.8 kWh on an average day, and below 0.82 kW the sun carries the load indefinitely. Above that the bank does the work: 10.6 kWh usable at the standard 50% setting, which carries 6.21 hours at 1.67 kW or 3.1 hours at 3.33 kW with no sun at all, and 14.84 kWh if it is programmed to the 30% option.

The inverter takes the array directly, so there is no separate charge controller to fit or to fail. That makes the 123-SG-4D41 a fit for camera, lighting and communications masts, and for site offices that run hard by day and idle by night, moved and set up with one tow.

Features and benefits

Inverter rated 10 kW continuous, 120/240 V or 120/208 V — Site equipment plugs in as it would on the grid, and electronics ride through a change of source.
24 kW surge for 10 seconds — Motor loads start without tripping the supply or oversizing the machine.
21.2 kWh lithium iron phosphate bank in four 5.3 kWh arrays — Nights and overcast days pass silently, with no fuel, no exhaust and no engine service.
Ten 460 W panels, 4.6 kW nameplate — Cameras, lighting and radios keep running without a fuel run or a site visit.
Array wired straight into the inverter, 97.6% conversion efficiency — Fewer parts to fail at a remote site, and less to service.

Key specifications 17 figures

Power
Rated continuous output	10 kW
Peak output	10 kW
Surge	24 kW
Output voltage and phase	120/240 V or 120/208 V
Output frequency	50 / 60 Hz
Transfer time	5 ms
Energy storage
Battery technology	Lithium iron phosphate (LFP)
Arrays installed	4
Total stored energy	21.2 kWh
Usable stored energy at 50%	10.6 kWh
Silent runtime at 5 kW	2.1 hours
Solar
Array rated power	4.6 kW
Solar panels	10 x 460 W
Daily solar production	19.8 kWh/day
Load covered by solar alone	0.82 kW
Mechanical and site
Trailer	2-axle, towable
Ambient operating range	+14 to +131 °F (-10 to +55 °C)

Backup generator, fuel capacity and consumption — Not applicable — this configuration carries no engine

Performance

Performance across the load range.

Zero to 10 kW, the rated maximum.

How long the battery carries the load on its own. Below 0.82 kW the array carries the whole day and the machine runs indefinitely. Above it, these are the hours the bank lasts with no sun and nothing charging, at the standard 50% setting and at the 30% setting.

battery only, 50% settingbattery only, 30% settingthe array carries the whole dayrated continuous output

Performance of 123-SG-4D41 at each continuous load
Loadcontinuous, 24 h	Solar generationthe array, per day	Battery only	Daily drawload × 24 h	After solar	Days of autonomy
0.82 kWsolar break-even	19.8 kWh	12.55 h / 17.57 h	19.8 kWh	covered	indefinite
1.67 kW	19.8 kWh	6.21 h / 8.69 h	40 kWh	20.2 kWh	0.51 days
3.33 kW	19.8 kWh	3.1 h / 4.35 h	80 kWh	60.2 kWh	0.17 days
5 kW	19.8 kWh	2.07 h / 2.9 h	120 kWh	100.2 kWh	0.1 days
6.67 kW	19.8 kWh	1.55 h / 2.17 h	160 kWh	140.2 kWh	0.07 days
8.33 kW	19.8 kWh	1.24 h / 1.74 h	200 kWh	180.2 kWh	0.06 days
10 kW	19.8 kWh	1.03 h / 1.45 h	240 kWh	220.2 kWh	0.05 days

Every load here runs continuously, and the day is 24 hours — daily draw is the load × 24 h, so 2 kW is 48 kWh. A load that runs an 8-hour shift draws a third of the figure shown and lasts three times as long. Battery-only hours are given at both state-of-charge settings. Solar is a daily energy offset, not an instantaneous power match — over a day it balances, within a day it is not a guarantee of cover.

Size it for your site

Your load, on 123-SG-4D41.

Most sites swing between a low and a high. Enter both, and the hours a day spent at the high, and the figures follow your day rather than a flat worst case. The load is yours — nothing is assumed until you enter it, and nothing that names you is kept; the PDF button builds the engineering sheet from the figures you enter.

Read from the performance table above: engine hours and fuel follow the day's energy, so your day is read at its average load; solar is the published daily figure; battery-only hours are the published bank at your high load. A load held for 24 hours is the worst case at that level. With no days entered it runs indefinitely; a week and a year are your day repeated, at the same sun.

Gallery

On site and on the road.

123-SG-4D41 — Ten panels unfolded in the brush: the 4.6 kW array opens around the enclosure of the two-axle trailer. — Ten panels unfolded in the brush: the 4.6 kW array opens around the enclosure of the two-axle trailer.

123-SG-4D41 — The 123-SG-4D41 stowed for the road: its ten panels folded over the enclosure, two axles, stabilizer jacks down. — The 123-SG-4D41 stowed for the road: its ten panels folded over the enclosure, two axles, stabilizer jacks down.

123-SG-4D41 — Array open on a gravel pad below dry hills, the trailer coned off — Array open on a gravel pad below dry hills, the trailer coned off

Applications

Where this configuration is deployed.

TelecommunicationsConstructionUtilitiesOil and gasRemote operations

Related deployments

This configuration, proven in the field.

Case study · Remote monitoringA solar trailer built to stand up to the wind, for SoCalGas telemetry monitoringSoCalGas needed mobile, off-grid power for telemetry monitoring at gas-storage sites above Granada Hills. The solar-only 123-SG-4D41, ten panels and 4.6 kW, was braced from every panel corner to the frame for high wind.Read the case study