The Fleet

Four models. One architecture.

Every StillWatt unit shares the same core architecture — LiFePO4 battery storage, rooftop solar, and a propane auto-start generator — scaled to four output tiers. Pick the model that matches your load, or call us and we'll size it for you.

In Build

SW-2

$375/day

Continuous output

2 kW

Daily energy

20 kWh

Rooftop solar

1.76 kW

Trailer

7×12 ft enclosed, tandem-axle

Best for

Solo food & beverage vendors, lighting kits, monitor villages, small base-camp A/V.

In Build

SW-5

$600/day

Continuous output

5 kW

Daily energy

50 kWh

Rooftop solar

2.4 kW

Trailer

7×12 ft enclosed, tandem-axle

Best for

F&B booth clusters, mid-size film base camps, multi-vendor events.

In Build

Most Specified

SW-7.5

$800/day

Continuous output

7.5 kW

Daily energy

75 kWh

Rooftop solar

3.2 kW

Trailer

7×16 ft enclosed, tandem-axle

Best for

Film unit bases, event production, commercial construction sites.

In Build

SW-10

$975/day

Continuous output

10 kW

Daily energy

100 kWh

Rooftop solar

4.0 kW

Trailer

8.5×18 ft enclosed, tandem-axle

Best for

Large event power, multi-department film support, federal field staging.

Standard on every unit

Shared features across the fleet.

48V LiFePO4 battery with integrated management system and active thermal control

Pure sine wave inverter/charger with seamless generator transfer

Rooftop solar with dual MPPT charge controllers

Propane backup generator with automatic start/stop

Cellular telemetry for remote monitoring

Split-phase 120/240V output