Silent. Mobile. Off-grid power for New Zealand.
Solar power trailers engineered in New Zealand for farms, residential builds, roading and civil work, festivals and events, and off-grid lifestyle. NZTA Class TD certified. First production cohort: June 2026.
Reservations: NZ$500, fully refundable up to 14 days before despatch. Configurator opens: Q1 2026. Email: power@solartrailer.co.nz
Why solar, not diesel
Modern NZ council noise overlays push diesel generators out of residential-adjacent civil work, festivals near homes, and many dairy operations. Solar Trailer Co units run silently, on no fuel, and sit inside council noise limits where diesel cannot. Battery storage covers 1.5–2 days of typical site load with zero solar input. Read the 5-year TCO comparison.
Three tiers
Tier 01 · Solo
NZ$19,500
Compact / single axle. For one operator — off-grid lifestyle, small builds, mobile services, surveyors. Specs & FAQ →
- 1.6 × 2.6 m · single axle
- 2.5–3.0 kW folding solar
- 5 kWh LiFePO₄ → 15 kWh
- 3 kW pure sine-wave inverter
- Tows on a car licence
Tier 02 · Crew
NZ$36,500
Tandem / flagship. For small teams — mid construction, mid festivals, dairy support, vineyards. The workhorse of the rental fleet. Specs & FAQ →
- 2.0 × 3.6 m · tandem, enclosed
- 5.0 kW bifold solar
- 20 kWh LiFePO₄ → 40 kWh
- 5 kW split-phase inverter
- 2.4 m³ insulated
Tier 03 · Command
By spec
Tandem braked / premium. For major construction, multi-day festivals, film unit base camps, marae and civil-defence response. Specs & FAQ →
- 2.4 × 4.2 m · tandem braked
- 8–10 kW extending bifold
- 40 kWh LiFePO₄ → 80 kWh
- 10 kW split / 3-phase
- 6 × 15A · 2 × 32A 3φ · EV opt
Modules
Five mountable modules extend any tier into a purpose-built deployment.
Irrigation pump
1.5 kW marine-grade pump, self-cleaning 200 µm filter, 100 m layflat hose. Pulls from creek, tank or bore — runs all day off the trailer.
Espresso & hospitality
Twin-group commercial machine, 22 L water + grey-water capture, fold-out 1.4 m bar bench, dual grinders, under-counter chiller. ~600 coffees a day on solar alone.
PA & lighting rig
8 kW PA, 24× DMX LED pars, 2× moving heads, FOH desk, 100 m armoured cable. Flight-cased and stage-ready.
Tool & charging
6× Milwaukee/DeWalt/Makita fast chargers, 4× 240 V outlets, lockable tool wall, overnight battery rotation.
Insulated chiller
Chest + chiller for catering and field crews. Pairs with hospitality and dairy use cases.
Where they work
Five customer segments. Real NZ deployments. Full use-case breakdown →
Dairy & beef farms
Taranaki dairy: T1 + comms cuts ~NZ$4.2k/yr in diesel. Manawatū lifestyle block: T1 with EV charger.
Residential builds
Queenstown architect home (T1 + tool kit). Two-stage subdivision before mains.
Roading & civil
Long-term T2/T3 hire. Wellington bridge piling. 6-month cycleway lighting. Sits inside council noise limits where diesel cannot.
Festivals & events
Splore (4 trailers, full event). Rhythm & Vines Stage 3. Auckland NYE (2 trailers, council-approved). Read the festival playbook →
Off-grid lifestyle
Bach, lifestyle block, remote cabin. Silent solar with 1.5–2 days of zero-sun battery storage.
Compliance
Every Solar Trailer Co unit is transport-engineer certified, NZTA-registered as a Class TD trailer, with a current WoF and CoF where applicable. The electrical stack carries a NZ Electrical Safety Certificate. Tier 1 tows on a car licence; Tier 3 needs a Class 1 with HT endorsement.
FAQ
- When do trailers actually ship?
- First production cohort is June 2026. Reserved slots are sequenced in deposit order.
- What does the NZ$500 reservation buy?
- A held production slot in the launch cohort, launch-parity pricing locked against any future RRP changes, and priority access to the configurator when it opens in Q1 2026. Fully refundable up to 14 days before despatch.
- Will it run my site?
- Tier 02 covers a typical 8-house residential build, mid-size festival, or dairy support. Use the calculator with your real fuel spend and load profile to size the right tier. Read the dairy sizing guide →
- Bad weather?
- Every tier ships with battery storage sized for 1.5–2 days of typical site load with zero solar input. Hybrid LPG module rental available for multi-week winter deployments, or pair two trailers.
- Road-legal? Who certifies it?
- Yes — transport-engineer certified, NZTA Class TD, WoF and CoF, NZ Electrical Safety Certificate.
- White-label / fleet supply?
- Yes — for hire businesses, civil-defence buyers, corporate sustainability programs. Email power@solartrailer.co.nz.
Reserve a launch slot
NZ$500 reservation, fully refundable to 14 days before despatch. Email us with your tier preference and load profile.
The Solar Trailer Co — Silent, mobile, off-grid power. Engineered in New Zealand. Email power@solartrailer.co.nz. NZTA Class TD certified · NZ Electrical Safety Certificate · WoF/CoF certified.