Wind Turbine FAQs
-
Summary Checklist for Your Choice
Choose the SR or ST-1200W if you want portability, low noise, and minimal investment for camping or caravans.
Choose the ST-2000, ST-3000, or ST-5000 if you have a stationary house/cabin and want to supplement solar panels at night.
Choose the ST-10kW — the largest turbine we sell — if you have heavy agricultural power needs, acreage, and a budget for proper mast engineering.
The vertical axis wind turbines listed on the BushLine Outdoor Equipment catalogue are categorised by physical design shapes, which dictate their ideal applications.
-
No.Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed. Connecting it directly to a battery or a standard solar inverter will instantly destroy your equipment. Youmustwire the turbine into a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The controller converts the power to stable DC to charge your batteries safely.
-
You must match the turbine and its hybrid controller to the exact voltage of your existing battery bank:
- 12V: Best for compact mobile setups like caravans, 4WDs, and camper trailers.
- 24V: Great for medium-sized setups like off-grid sheds, cabins, and motorhomes.
- 48V: The gold standard for full off-grid home systems. Higher voltage means less energy loss through your wires and allows you to use thinner, safer cables.
-
When your battery bank becomes 100% fully charged, it stops accepting power. If a heavy wind storm hits at night when your batteries are full, a turbine with nowhere to send its power will "free-spin" out of control and physically fly apart. A hybrid controller fixes this by automatically diverting that excess power into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
-
No,that is the main benefit of the vertical design. Traditional horizontal "propeller" turbines create a high-pitched, annoying "chopping" noise. Our ST Tulip and Flower series utilise advanced omnidirectional maglev-style bearings, making them virtually silent and completely vibration-free, all you will hear is the wind. They are perfect for suburban blocks, tight caravan parks, and areas close to neighbours.
-
It will turn, but turning is not charging. The blades start rotating at about 1.5 m/s — a light breeze. Charging starts once the wind clears the cut-in speed of about 3.5 m/s, and output climbs from there — the rated figure is measured at 13 m/s (about 47 km/h). A gentle breeze keeps the turbine ticking over; it takes real wind to push real power into your batteries.
-
You should connect the wind turbine to a battery bank first, via a dedicated charge controller, rather than directly to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
🔋 The Correct Wiring SequenceTo safely capture and use the power, your setup must follow this exact order:
- Wind Turbine: Generates wild, fluctuating 3-phase AC power as wind speeds change.
- Hybrid/Wind Charge Controller: Converts the unstable AC power into steady DC power. It also protects the turbine from over-speeding by applying an electronic brake during high winds.
- Battery Bank (12V/24V/48V): Acts as a buffer to store the energy. It absorbs sudden power spikes from wind gusts and provides a steady source of energy.
- Off-Grid Inverter: Connects to the battery, converting the stored DC battery power into standard AC power for your household appliances.
⚠️ Why You Cannot Skip the Battery
- Unstable Voltage: Wind speeds change second by second. Without a battery to absorb and smooth out these massive fluctuations, a direct-connect inverter would constantly turn off and error out.
- Turbine Destruction: When a battery is full or disconnected, a wind turbine loses its "load" (resistance). Without that resistance, the blades can spin out of control in high winds and physically destroy the unit. The charge controller uses the battery connection to safely dump excess power and slow the turbine down.
-
Wiring & Installation Requirement:This wind turbine generates 3-phase AC power andcannotbe connected directly to a battery, solar controller, or home inverter. To operate safely, it must run through a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The dump load prevents the turbine from over-speeding and destroying itself in high winds once your batteries are fully charged.
-
It is almost always one of three common installation issues. Check them in order:
1. Your multimeter is set to DC (the most common mistake).
- The issue: measuring the three turbine wires with the meter set to DC volts.
- The reality: wind turbines generate 3-phase AC power directly from the stator.
- The fix: switch your multimeter to AC volts (V~). Testing these wires on a DC setting gives a false reading near zero.
2. The turbine is stalling because of a short.
- The issue: the blades turn heavily and slowly, or lock up.
- The reality: if any of the three AC output wires touch each other, or the controller’s internal braking diodes have short-circuited, it acts as a magnetic brake — the turbine can never spin fast enough to build voltage.
- The fix: completely disconnect the turbine from the controller. If it suddenly frees up and spins much faster, the problem is a short in the wiring or a faulty controller.
3. Voltage drop from thin cables.
- The issue: thin wire run a long way from the tower to the battery shed.
- The reality: thin solar or automotive cable over a long run (20 metres or more) loses the power as heat in the wire before it reaches the controller.
- The fix: use heavy cable between the mast and the controller on long runs — minimum 8 AWG, ideally 6 AWG.
-
Because the number on the box is a peak rating, not a promise. A turbine’s rated output is measured at a specific wind speed — for these models that is 13 m/s, about 47 km/h — and most sites see far less most of the time. Your display shows what the wind is delivering right now, so it will sit well below the rated figure and move second by second with the wind. That is physics, not a fault.
Where these turbines earn their keep is time: they keep charging through the night and through weather that shuts solar down. If the display shows 0 W while the blades are spinning, that is a different issue — see the 0 W question below.
-
Not necessarily — this is one of the most common questions we get, and it's rarely a faulty unit. It's usually a quick settings check, or (on a first-time install) how the wiring and start-up sequence were done. See our full Wind Turbine 0W Troubleshooting & Installation Guide for the complete walkthrough, or contact us and we'll help you sort it out.
-
Short answer: wire your bus bar and breakers before and after the controller, then power up in the right order — battery first, then solar, then wind. Getting the sequence right prevents almost all wiring issues, including the common “spinning but 0 W” problem.
Correct installation comes down to isolation and the right sequence:
- Fit a breaker before the controller (turbine/solar side) and after it (battery side), landing on a DC bus bar
- Keep the turbine-to-controller cable run to 2–10 metres to limit voltage drop
- Power up in this order: battery breaker first, then solar, then wind turbine last
See our full How to Install & Start Up guide for the complete step-by-step walkthrough and wiring diagram.
ST-2000 2kW Vertical Tulip Wind Turbine | Off-Grid Power Generator
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ST-2000 2kW Vertical Tulip Wind Turbine | Off-Grid Power Generator
Turbine only? You'll still need a controller.
Worth saying before anything else, because it's the mistake we see. You cannot wire a wind turbine straight to a battery. The raw output is wild AC that swings with the wind, and without a controller in between it will overcharge and damage your bank, or the turbine will overspeed and damage itself when the batteries are full.
So the turbine only option at $1,299 is for people who already have a wind or hybrid controller sized for 2kW. Everyone else wants with hybrid control at $1,549 — that's the turbine plus a controller that runs wind and solar together and includes the dump load.
With that out of the way: the ST-2000 is the mid-size tulip. 15 kg, 600 mm wheel, two curved 1.1 metre blades on a vertical axis with a permanent magnet maglev generator. It starts turning at 1.2 m/s, charges from 3.5 m/s, and peaks at 2200W. Available in white, violet, orange or yellow.
Straight up about the numbers: rated 2000W needs 12 m/s, about 43 km/h. Below that you're getting a share of it — real charging, day and night, in the weather that stops solar, but not 2kW around the clock. It assists your panels, it doesn't replace them.
Problem Solving / Benefits
- Charges overnight: solar clocks off at sunset, wind doesn't. That's the difference between waking to a full bank or reaching for the generator.
- Quiet near the house: low tip speed means no propeller roar, so it can go by the shed, the van or the boat without starting an argument with the neighbours.
- Keeps the genny off: every hour the diesel isn't running is fuel you haven't hauled and a service you haven't done.
- Two people and a pole: 15 kg on a 600 mm wheel, mounting from 2 metres. No crane, no mast, no concrete pad.
- Pick a colour that suits: white, violet, orange or yellow — useful if it's going somewhere visible, or if you want it seen.
Key Features
- Rated 2000W: peaking at 2200W at around 12.5 m/s per the supplier's power curve.
- 12V, 24V and 48V: match your existing bank, controller and inverter.
- Starts at 1.2 m/s: cut-in for useful charging is 3.5 m/s (12.6 km/h), rated output at 12 m/s (43.2 km/h).
- Two curved blades: 1.1 metres long on a 600 mm wheel. Vertical axis, takes wind from any direction, no tail vane.
- Maglev generator: 3-phase permanent magnet synchronous, magnetically levitated to cut torque so it keeps turning in lighter wind.
- 15 kg: mounting between 2 and 10 metres.
- Survives 36 m/s: roughly 130 km/h. More than the ST-1200W, less than the ST-3000 and ST-10kW at 162 km/h.
- Works −25°C to +45°C: humidity below 90%. Generator protection IP54.
- Electromagnetic braking: handles both overspeed and overload, with a load dump unit.
- Four colours: white, violet, orange and yellow. Approximately 20 year design life.
Q & A
Do I really need the controller?
Yes, unless you already own one. A turbine cannot be connected directly to a battery — the output is unregulated AC that varies with wind speed. The controller rectifies it to DC, manages the charge, and brakes the turbine when the bank is full. Buying "turbine only" without a controller leaves you with a machine you can't safely connect to anything.
Which controller comes with it, and do I have to choose a size?
No choosing required — it's matched to the turbine. Pick "with hybrid control" and you get a controller rated 2000W wind and 2000W solar, sized to this turbine on both sides. You don't need to work anything out.
It's the Standard hybrid controller: a blue finned aluminium case, single MPPT tracker handling wind and solar, passively cooled with no fans, mono LCD, and the external dump load resistor supplied with it.
The Controller Supplied
- Terminals: D+ B+ B− S+ S− U V W L+ L− D− — wind on U/V/W, solar on S+/S−, dump load on D+/D−. Give this to your sparky.
- Protections: reversed solar charging, reverse battery polarity, battery open circuit, over-voltage, over-current and over-load with automatic braking.
- Mount it indoors or in a sealed enclosure — it has no water rating. The turbine lives outside, the controller doesn't.
- Lightning protection isn't included, and we don't supply it — if you're somewhere lightning-prone, have your electrician fit lightning protection as part of the install. It's the last line of defence for the whole system, not just this controller.
Need a different wind-to-solar ratio? If your panel array is much bigger or smaller than the turbine, our standalone MPPT hybrid controllers come in thirteen mixed combinations.
Can I use my existing solar controller?
Not for the turbine. Solar controllers expect steady DC from panels, not variable AC from a generator, and they have no dump load or braking. You need a wind or hybrid controller. A hybrid one runs both on the one unit, which is what the "with hybrid control" option gives you.
Can I use this in the tropics or cyclone country?
It survives 36 m/s, roughly 130 km/h, and works to +45°C. That's better than the ST-1200W but short of the ST-3000 and ST-10kW at 45 m/s (162 km/h) and +80°C. If you're in a cyclone region, buy up the range.
Is it noisy?
No. Vertical axis turbines run at low tip speed and don't produce the mechanical roar horizontal turbines are known for. Fine near houses and in built-up areas.
Can I run it with solar panels?
Yes, and you should. Solar carries summer and daylight, wind carries winter and overnight. Neither covers the year on its own.
Will one run my house?
No. It's the same question as asking whether one solar panel will run a house. For most people this is battery charging, lighting, pumps, a shed or a van. Grouped turbines produce more than the sum of their parts — the bouquet effect — so plan for several if you're powering a property.
How long will it last?
Design life is around 20 years with proper maintenance. There's very little to go wrong.
Do I need an electrician?
Yes. All wind turbines and charge controllers must be installed by a qualified specialist. Damage from DIY installation or improper wiring isn't covered — see our Return Policy.
Specs
| Model | ST-2000 |
| Turbine type | Tulip (Flower) vertical axis |
| Rated power | 2000W (2kW) |
| Maximum power | 2200W |
| Rated voltage | 12V, 24V or 48V |
| Controller supplied | Standard hybrid MPPT, matched to the turbine — 2000W wind / 2000W solar, with external dump load resistor. Only on the "with hybrid control" options |
| Start-up wind speed | 1.2 m/s (4.3 km/h) |
| Cut-in wind speed | 3.5 m/s (12.6 km/h) |
| Rated wind speed | 12 m/s (43.2 km/h) |
| Survival wind speed | 36 m/s (approx. 130 km/h) |
| Blade length | 1.1 metres |
| Wind wheel diameter | Approx. 600 mm |
| Number of blades | 2 |
| Blade material | ABS plastic, fibre reinforced |
| Weight | 15 kg |
| Generator type | 3-phase permanent magnet synchronous maglev |
| Generator protection grade | IP54 |
| Control system | Electromagnetic |
| Overspeed protection | Electromagnetic brake |
| Overload protection | Electromagnetic brake and load dump unit |
| Working temperature | −25°C to +45°C |
| Working humidity | Below 90% |
| Mount height | 2 to 10 metres. Mast or pole not included |
| Colours | White, violet, orange, yellow |
| Design life | Approx. 20 years |
Turbine Spinning But Showing 0W?
It is almost never a faulty turbine or controller. Read the 0W troubleshooting & correct installation guide before you assume something is broken.
Typical Off-Grid Wiring Layout
What Else You'll Need
A turbine on a pole is only half a system. This is the gear that goes between it and your batteries, and why it matters.
- 3-pin Anderson plug: wire one in between the turbine and the controller and you can unplug the whole turbine — drop it for maintenance, swap it out, or take it off the van before you travel. Five minutes' work and you'll thank yourself later.
- Bus bars: where everything lands before it reaches the battery. Properly rated 48V bus bars are genuinely hard to find — most of what's sold online is light-duty gear. There's also a 500A marine version.
- Breakers and isolators: one on every input and output, so you can safely shut down and isolate the turbine before you touch anything. That protects you, and it stops a surge damaging your new turbine or the rest of your power system. Also a DIN-rail mini breaker and a 100A–300A rotary isolator.
- Cable and lugs: flexible copper cable, shielded 2 and 3 core, and a lug crimper if you're making up your own runs.
Straight up on cable sizing: it depends on your run length, your system voltage and your current, and every setup is a bit different. What we stock covers 48V systems and the shorter runs on smaller turbines well. If you're building 12V or 24V, check the sizing against your own run and talk to your sparky — we'd rather you fitted the right cable than the one we happen to have on the shelf.
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Wind Turbine FAQs
-
Summary Checklist for Your Choice
Choose the SR or ST-1200W if you want portability, low noise, and minimal investment for camping or caravans.
Choose the ST-2000, ST-3000, or ST-5000 if you have a stationary house/cabin and want to supplement solar panels at night.
Choose the ST-10kW — the largest turbine we sell — if you have heavy agricultural power needs, acreage, and a budget for proper mast engineering.
The vertical axis wind turbines listed on the BushLine Outdoor Equipment catalogue are categorised by physical design shapes, which dictate their ideal applications.
-
No.Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed. Connecting it directly to a battery or a standard solar inverter will instantly destroy your equipment. Youmustwire the turbine into a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The controller converts the power to stable DC to charge your batteries safely.
-
You must match the turbine and its hybrid controller to the exact voltage of your existing battery bank:
- 12V: Best for compact mobile setups like caravans, 4WDs, and camper trailers.
- 24V: Great for medium-sized setups like off-grid sheds, cabins, and motorhomes.
- 48V: The gold standard for full off-grid home systems. Higher voltage means less energy loss through your wires and allows you to use thinner, safer cables.
-
When your battery bank becomes 100% fully charged, it stops accepting power. If a heavy wind storm hits at night when your batteries are full, a turbine with nowhere to send its power will "free-spin" out of control and physically fly apart. A hybrid controller fixes this by automatically diverting that excess power into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
-
No,that is the main benefit of the vertical design. Traditional horizontal "propeller" turbines create a high-pitched, annoying "chopping" noise. Our ST Tulip and Flower series utilise advanced omnidirectional maglev-style bearings, making them virtually silent and completely vibration-free, all you will hear is the wind. They are perfect for suburban blocks, tight caravan parks, and areas close to neighbours.
-
It will turn, but turning is not charging. The blades start rotating at about 1.5 m/s — a light breeze. Charging starts once the wind clears the cut-in speed of about 3.5 m/s, and output climbs from there — the rated figure is measured at 13 m/s (about 47 km/h). A gentle breeze keeps the turbine ticking over; it takes real wind to push real power into your batteries.
-
You should connect the wind turbine to a battery bank first, via a dedicated charge controller, rather than directly to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
🔋 The Correct Wiring SequenceTo safely capture and use the power, your setup must follow this exact order:
- Wind Turbine: Generates wild, fluctuating 3-phase AC power as wind speeds change.
- Hybrid/Wind Charge Controller: Converts the unstable AC power into steady DC power. It also protects the turbine from over-speeding by applying an electronic brake during high winds.
- Battery Bank (12V/24V/48V): Acts as a buffer to store the energy. It absorbs sudden power spikes from wind gusts and provides a steady source of energy.
- Off-Grid Inverter: Connects to the battery, converting the stored DC battery power into standard AC power for your household appliances.
⚠️ Why You Cannot Skip the Battery
- Unstable Voltage: Wind speeds change second by second. Without a battery to absorb and smooth out these massive fluctuations, a direct-connect inverter would constantly turn off and error out.
- Turbine Destruction: When a battery is full or disconnected, a wind turbine loses its "load" (resistance). Without that resistance, the blades can spin out of control in high winds and physically destroy the unit. The charge controller uses the battery connection to safely dump excess power and slow the turbine down.
-
Wiring & Installation Requirement:This wind turbine generates 3-phase AC power andcannotbe connected directly to a battery, solar controller, or home inverter. To operate safely, it must run through a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The dump load prevents the turbine from over-speeding and destroying itself in high winds once your batteries are fully charged.
-
It is almost always one of three common installation issues. Check them in order:
1. Your multimeter is set to DC (the most common mistake).
- The issue: measuring the three turbine wires with the meter set to DC volts.
- The reality: wind turbines generate 3-phase AC power directly from the stator.
- The fix: switch your multimeter to AC volts (V~). Testing these wires on a DC setting gives a false reading near zero.
2. The turbine is stalling because of a short.
- The issue: the blades turn heavily and slowly, or lock up.
- The reality: if any of the three AC output wires touch each other, or the controller’s internal braking diodes have short-circuited, it acts as a magnetic brake — the turbine can never spin fast enough to build voltage.
- The fix: completely disconnect the turbine from the controller. If it suddenly frees up and spins much faster, the problem is a short in the wiring or a faulty controller.
3. Voltage drop from thin cables.
- The issue: thin wire run a long way from the tower to the battery shed.
- The reality: thin solar or automotive cable over a long run (20 metres or more) loses the power as heat in the wire before it reaches the controller.
- The fix: use heavy cable between the mast and the controller on long runs — minimum 8 AWG, ideally 6 AWG.
-
Because the number on the box is a peak rating, not a promise. A turbine’s rated output is measured at a specific wind speed — for these models that is 13 m/s, about 47 km/h — and most sites see far less most of the time. Your display shows what the wind is delivering right now, so it will sit well below the rated figure and move second by second with the wind. That is physics, not a fault.
Where these turbines earn their keep is time: they keep charging through the night and through weather that shuts solar down. If the display shows 0 W while the blades are spinning, that is a different issue — see the 0 W question below.
-
Not necessarily — this is one of the most common questions we get, and it's rarely a faulty unit. It's usually a quick settings check, or (on a first-time install) how the wiring and start-up sequence were done. See our full Wind Turbine 0W Troubleshooting & Installation Guide for the complete walkthrough, or contact us and we'll help you sort it out.
-
Short answer: wire your bus bar and breakers before and after the controller, then power up in the right order — battery first, then solar, then wind. Getting the sequence right prevents almost all wiring issues, including the common “spinning but 0 W” problem.
Correct installation comes down to isolation and the right sequence:
- Fit a breaker before the controller (turbine/solar side) and after it (battery side), landing on a DC bus bar
- Keep the turbine-to-controller cable run to 2–10 metres to limit voltage drop
- Power up in this order: battery breaker first, then solar, then wind turbine last
See our full How to Install & Start Up guide for the complete step-by-step walkthrough and wiring diagram.
