how to set up for power on stalls
Step-by-step New Zealand guide to planning, supplying and safely running electricity on market, festival or garage-sale stalls — plus a short note on cashless payments for stalls.
Quick takeaway
Set up power on a stall by: 1) checking the event organiser's power availability and rules, 2) calculating the wattage of everything you plan to run, 3) choosing a suitable power source (mains, generator, or battery/inverter), and 4) using certified leads, RCD protection and safe routing. Bring spares, label circuits, and test everything before trading. For card and tap payments, consider a portable cashless option that doesn't require an EFTPOS machine.
Confirm what power the organiser provides and any fees or limits.
Work out a realistic power budget (sum appliance wattage + margin).
Use RCD/earth-fault protection, correct cable sizes, and tidy routing to avoid hazards.
Overview — what this covers
This article explains how to set up power for a stall: planning, choosing a power source, safety checks, equipment to bring, and special notes for food or heated stalls. It assumes you're a small seller in New Zealand at a market, fair, garage sale or pop-up.
If the question you came with is only about taking card payments, skip to the short payments section near the end.
- Planning and permissions
- Power options (mains, generator, battery/inverter)
- Safety, equipment and testing
Step 1 — check organiser rules and site power
Before you buy or rent anything, ask the event organiser: Do they provide power? How many amps per stall? Where are the outlets? Are there fees or meter readings? Are leads allowed across walkways? Is RCD/isolation provided?
Organisers often supply a limited number of dedicated 10A or 15A outlets or a single shared supply requiring load-sharing. Confirm lead-in points and set-up/pack-down times for accessing power.
- Ask for a site map and outlet labels if available.
- Confirm any power fees, allocated fuse size (amps), and whether sharing is allowed.
- Find out who is responsible for electrical faults during the event.
Step 2 — calculate what you need (power budgeting)
Make a list of every electrical item you'll run (lights, kettle, fridge, grill, blender, phone charger, card terminal). Write its wattage (look on the plug, plate, or manual) or estimate if unknown.
Add the wattages to get peak demand, then add 20–30% as a safety margin. Convert watts to amps for NZ 230V: amps = watts ÷ 230. Round up and compare to the outlet's available amps (eg, 10A ≈ 2300W).
- Typical draws: LED lights very low (10–50W), small fridge 100–300W running (higher on start-up), kettle 1500–3000W, food blender 300–1200W.
- If your total exceeds the outlet capacity, split equipment across outlets or use a higher-capacity supply.
- Remember start-up (inrush) current for motors and compressors — allow extra capacity.
Step 3 — choose a power source
Common options: mains power from the organiser, a quiet inverter generator, or a portable battery power station. Each has trade-offs for cost, noise, emissions and capacity.
Mains power is simplest if available and sized correctly. Generators give independence but need fuel and ventilation. Battery power stations are quiet and low-maintenance but limited by capacity and price.
- Mains: simplest, but watch shared limits and require RCD protection and correct extension leads.
- Generator: choose an inverter model for cleaner power if running electronics; check noise rules and fuel safety.
- Battery/inverter: good for low-power stalls (lighting, phone chargers, small card readers) and indoor or noise-sensitive sites.
Step 4 — safety and compliance basics
Safety matters: use residual current devices (RCDs/GFCIs), correct extension leads and outdoor-rated equipment, and keep cables tidy and covered. In New Zealand, event organisers and licensed electrical contractors often coordinate mains distribution — follow their instructions.
Avoid DIY mains taps or makeshift splices. If you need permanent hard-wired connections, get a licensed electrician to do them. For plug-in equipment, ensure leads and plugs are in good condition and rated for the load.
- Always use an RCD between your equipment and the supply — portable RCDs are cheap and useful if the organiser doesn't provide one.
- Use outdoor-rated (IP-rated) leads and adaptors for wet conditions; protect connections from rain.
- Don't daisy-chain extension cords; use a correctly rated multi-outlet or distribution box supplied by an electrician.
Step 5 — what to bring (equipment checklist)
Pack for safety and redundancy. Being prepared saves time and avoids unsafe improvisation on site.
Label cables and bring spares of the things that commonly fail or are required at short notice.
- Copies of correspondence with the organiser (outlet location, amps, fees).
- Power calculator or list of appliance wattages and your total amps required.
- Portable RCD/receptacle, outdoor extension lead(s) rated for the load, weatherproof covers, cable ramps/tape, gaffer tape, cable ties.
- Spare fuses, plug adaptors, outdoor power boards rated for the load, and a basic tool kit.
- Generator or battery station with fuel/charged batteries if organiser power is unavailable.
Structured summary
Open the rolled-up answer map
Extra context for quick scanning, while the main article stays focused on the practical guide.
Questions covered
Best for
- Practical for NZ markets, festivals, weekend stalls and pop-ups where mains or shared power may or may not be available.
- Includes options for mains hookups, portable generators, and battery power stations popular with small Kiwi stallholders.
- Covers basic safety practices common to New Zealand conditions: wet weather, outdoor plugs, and event rules.
Search context
how-to
FAQ
Do I need a licensed electrician to set up power for my stall?
If you're only plugging in standard portable appliances to a provided outlet, you usually don't need a licensed electrician. For any hard-wiring, permanent connections, or if you need a higher-capacity supply (dedicated circuit), use a licensed electrician. Also follow any event organiser rules that may require electrician involvement.
Can I use household extension leads and power boards at a market?
You can use extension leads if they are in good condition and rated for the load and outdoor use. Don't daisy-chain leads or use indoor-only powerboards outdoors in wet conditions. Prefer purpose-made outdoor-rated leads and portable RCDs for added safety.
How do I work out how many amps I need?
Add up the wattage of each appliance, then divide the total watts by 230 (NZ mains voltage) to get amps. Allow a ~20–30% safety margin for start-up currents and minor miscalculations. Compare that to the outlet's amp rating (for example, a 10A outlet supplies about 2300W).
What should I do if the power trips during trading?
Switch off and unplug high-load appliances, reset the RCD or organiser's distribution board if authorised to do so, then plug items back in one at a time to identify the cause. If unsure, contact the event organiser or an electrician rather than repeatedly resetting and risking damage.
How can I keep card payments running if my stall loses power?
Use a mobile payment solution that runs on a phone or tablet and keep a charged power bank as backup. Many small card/tap devices use very little power and can run for hours from a single phone battery or a small power bank. PocketMoney is an example of a service that helps sellers accept payments without a traditional EFTPOS machine — bringing a charged phone and battery pack will keep it working even if mains power is unavailable.
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