When a remote site needs its own power, the first decision is the platform: a towable trailer unit, a skid-based system craned or transported onto a prepared pad, or a compact enclosure system built for smaller, continuous loads. All three deliver solar and battery power, with diesel backup where the load calls for it. The right choice comes down to how much power the site actually draws, how often it moves, how you can access it, and how long the power needs to stay in place.

The short answer

• Choose towable (V-Trail) when the site is temporary, moves often, or you need power deployed in days by one crew with a vehicle.
• Choose skid-based (Vantara) when the site is semi-permanent, the load is larger, and the unit will sit for months to years.
• Choose compact enclosure (ModX2) when the load is small and continuous — comms, lighting, monitoring or security — and the site doesn’t need a trailer’s mobility or a skid’s capacity, just a self-contained, unmanned power supply that can sit on a pad or pole indefinitely.

Head to head

Factor	Towable (V-Trail)	Skid-based (Vantara)	Compact enclosure (ModX2)
Deployment speed	Days. Tow, level, deploy panels — under 10 minutes on site with two operators.	Longer. Needs transport, crane, prepared pad.	Fast. Factory pre-wired, pre-tested and certified before shipping; dispatch within a week, then bolt down and commission.
Mobility	High. Relocate with a vehicle.	Low. Designed to stay put.	Low–medium. Fixed once installed, but light enough to move without a crane.
Best for	Exploration, early works, emergency, camps, moving fronts.	Semi-permanent loads, larger sites, longer duration.	Unmanned, continuous small loads: comms towers, obstruction lighting, environmental monitoring, security, oil/gas and pipeline infrastructure.
Load size	Small to medium (8.16 kWp solar / 43 kWh storage).	Medium to large (12.9 kWp solar / 55 kWh storage, modular and expandable).	Small (990 Wp solar / 5.12–15.36 kWh storage).
Backup generation	30 kVA diesel generator, 100 L tank.	Dual 30 kVA bi-directional inverters (60 kVA combined); no integrated genset in the base build.	None — solar/battery only, sized for low continuous draw.
Site prep	Minimal — level ground for the trailer.	Pad, access and lift planning, plus security fencing.	Minimal — small footprint (2183 × 850 × 811 mm), pad or pole mount.
Weight	Under 3,500 kg (dual-axle trailer).	Enclosure on concrete footings — a fixed, heavier installation.	Compact single enclosure, light enough for standard freight.
Relocation cost	Low.	High.	Low, but not designed for repeated moves.
Security/footprint	Compact, self-contained.	Larger footprint, more capacity, fenced compound.	Smallest footprint; stainless steel, fan-cooled enclosure with 3-point padlockable locking.

How to decide, four questions

1. Is the load small and continuous, with no one on site to manage it? Telemetry, lighting, monitoring or comms loads that just need to run 24/7 unattended point to ModX2 rather than a trailer or skid.
2. Will this site move within 12 months? If yes, towable (V-Trail).
3. Is the load beyond what a trailer carries? V-Trail tops out around 8.16 kWp solar and 43 kWh of storage with a 30 kVA diesel backup, at under 3,500 kg all-up. Beyond that — or where you need dual-inverter redundancy and expandable capacity from 55 kWh up — look at a skid or Vantara build.
4. How fast do you need power? If it’s weeks-not-months urgent, ModX2 (stock availability, dispatch within a week, for small loads) or V-Trail (days, once on site) both beat a skid build, which needs transport and crane access to a prepared pad.

Where Valen fits

V-Trail covers the towable end. ModX2 covers small, continuous, unmanned loads in a compact, factory-built enclosure. Vantara and Vantara Rapid cover permanent and repeatable skid and enclosure builds — from a pre-engineered 5.1 kW / 21.48 kWh entry system up to fully modular 12.9 kWp / 55 kWh (and beyond) installations. Because all three come from Valen, you get one supplier who will tell you honestly which platform suits the site, and support any of them for the life of the asset.

Parameter	V-Trail (towable)	ModX2 (compact enclosure)	Vantara (skid-based, base build)
Solar	8.16 kWp	990 Wp	12.9 kWp (20 × 589 Wp panels)
Battery storage	43 kWh LiFePO₄ (nine 4.8 kWh modules)	5.12 / 10.24 / 15.36 kWh LiFePO₄ (options)	55 kWh LiFePO₄ (eleven 5 kWh modules)
Backup generation	30 kVA diesel genset, 100 L tank	None (solar/battery only)	Dual 30 kVA bi-directional inverters (60 kVA combined)
Inverter / charge control	Bi-directional inverter, up to 35 kW MPPT charge power	Victron BlueSmart MPPT 100/20, 98% peak efficiency, Victron VRM monitoring	2× solar charge controllers, 35 kVA combined, 99.9% MPPT efficiency; Vonnect EMS monitoring
Footprint / weight	Dual-axle trailer, under 3,500 kg	2183 × 850 × 811 mm enclosure	Enclosure on concrete footings, security fencing
Deploy time	Under 10 minutes on site with two operators (panels deployable solo via gas strut)	Factory pre-wired, tested and certified; dispatch within a week	Longer — requires transport, crane and a prepared pad
Typical use	Exploration, early works, emergency and moving-front camps	Comms, obstruction lighting, environmental monitoring, security, oil/gas/pipeline	Rail signalling, telco, mining, distribution network, UPS/backup for critical loads

Note: Vantara Rapid’s two pre-engineered options (5.1 kW PV / 21.48 kWh and 10.2 kW PV / 42.96 kWh, both with a 5 kVA inverter) sit between ModX2 and a full custom Vantara build, for sites that need more than ModX2 but don’t warrant a bespoke skid design.