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Frequently asked

Questions, answered.

Plain answers to the questions customers ask most. Email power@solartrailer.co.nz if your question isn't here.

When do units actually ship?

Every unit is built to order. Build time is 30 days for Tier 1 — Solo, 40 days for Tier 2 — Crew and 55 days for Tier 3 — Command, from a confirmed build. A 40% deposit confirms the build; no deposit is required to enquire.

Can I have it on skids instead of a trailer?

Yes. Every model is available on a trailer (2.4 m on Solo, 3.4 m on Crew, 4.8 m on Command) or on skids — a lower-cost, non-towable static option for fixed or craned installs. Skids builds are static and not towable, so the trailer road-legal requirements below do not apply to them; the electrical Certificate of Compliance applies to every build. Indicative starting prices, ex-GST: Solo from NZ$19,123 on a trailer or NZ$15,223 on skids; Crew from NZ$30,186 or NZ$23,686; Command from NZ$53,742 or NZ$42,042.

How do I order?

Register your interest or request a quote and we'll confirm your build slot, specification and pricing directly. No deposit is required to enquire — a 40% deposit confirms the build. Prices are NZD ex-GST; 15% GST is added on a configured build, quotes are valid 30 days, and pickup from our NZ workshop is free with shipping quoted separately by delivery address.

Will it actually run my site?

Use the calculator on the homepage with your real fuel spend and load profile — it gives an indication of the right tier for your draw. Tier 2 suits mid-size draws such as a small residential build, a mid-size event, or dairy support. Sizing is indicative only and is confirmed on enquiry against your actual load profile. If your draw exceeds Tier 3, contact us about pairing units.

What happens on a week of bad weather?

Every tier ships with battery storage sized for 1.5–2 days of typical site load with zero solar input — actual runtime varies with site load and battery size. For multi-week deployments in the dead of winter, hybrid module rental (small LPG generator) is available on top of any trailer. Or — pair two trailers, common at festivals.

Is it road-legal? Who certifies it?

Yes. Our solar systems are installed onto purpose-built trailers that are supplied engineered and road-legal — NZTA Class TB light trailers (GVM under 3,500 kg) with a current Warrant of Fitness (WoF) at the time of delivery. The solar, battery, inverter and 230 V electrical systems are installed by EWRB-registered electricians and independently inspected by a Licensed Electrical Inspector, with a Certificate of Compliance issued for every unit. All tiers tow on a standard Class 1 (car) licence, provided your combined vehicle-plus-trailer weight (GCM) stays within your licence limit (6,000 kg on a full Class 1) — check your tow vehicle against the trailer's weight before towing. Skids builds are static and not towable, so the trailer road-legal requirements do not apply to them; the electrical Certificate of Compliance applies to every build.

Warranty if something fails?

Each tier ships with a manufacturer warranty. Specific terms (battery, inverter, structural, electrical) are surfaced in the configurator at checkout.

How does it compare to just buying a generator?

Solar trailers run silently, on no fuel, and sit inside council noise limits where diesel cannot. Zero per-kWh fuel cost after capex. Hybrid module rental covers the long winter tail. Generators have lower up-front cost but cost more over a 5–10 year horizon, generate noise complaints near homes, and don't qualify for residential-adjacent civil work in many councils.

Can I retrofit modules later?

Yes — modules (irrigation pump, espresso and hospitality, PA and lighting rig, tool and charging, insulated chiller) mount on any tier and can be added after delivery.

Do you do white-label or fleet supply?

Yes — fleet supply and white-label are available for hire businesses, civil-defence buyers, and corporate sustainability programs. Email power@solartrailer.co.nz.

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