The 123-STG-7 is the largest all-in-one Tri-Brid™ generator in the 123eSolar lineup. Where the STG-4 handles single-instrument sites and light remote loads, the STG-7 is engineered for multi-system installations, continuous high-draw equipment, and sites that demand maximum autonomy between service visits.
Sixteen hydraulic solar panels deliver 7.2 kW of charging input. A 30 kWh energy cell provides extended overnight and low-sun autonomy — more than 2.5x the storage capacity of the STG-4. When solar input is insufficient, the integrated 12 kW EPA Tier 4 Final diesel generator engages automatically, recharging the energy cell and maintaining uninterrupted output with no operator intervention.
Built for the most demanding remote power applications:
The STG-7 is deployed where power interruption carries serious operational or financial consequences — pipeline monitoring networks, remote telecommunications infrastructure, long-duration environmental research stations, and government or defense installations requiring sustained off-grid power over months or years. The 120-gallon fuel tank and IoT-enabled remote monitoring mean service intervals can be planned around actual consumption data, not fixed schedules.
Key operational advantages:

7.2 kW hydraulic solar array — 16 panels, fully retractable for transport
30 kWh LFP energy cell with IoT monitoring — expandable
Automatic diesel engagement — seamless, no manual switching
120-gallon fuel tank — extended runtime between fuel deliveries
UL9540 certified energy cell available — meets code for regulated installations
SFI 17.1 automatic fire suppression available — for high-risk environments
120/240V split-phase output @ 50A via Cam-Lock connection
Remote fuel level and power consumption monitoring included
Towable by standard 3/4-ton pickup — no special transport required

For sites requiring power beyond 12 kW continuous, the STG-7 supports expansion via additional solar trailers and battery strings. One trailer to start. Scale as the mission grows.