L1-1500 Horizontal Wind Turbine — 1500 W at 11 m/s, 48 V

The battery bank shouldn't dread winter. Every off-grid system has a worst week: short days, a grey sky, and a battery bank going backwards while the generator does the heavy lifting. Panels alone cannot fix it, because the problem is not panel capacity — it is that the sun keeps office hours and your loads do not. The L1-1500 is the middle machine in our L-series — 53 kg, a 2.9 m three-blade rotor, built for a 48 V battery bank. It starts turning in a 2 m/s breath of wind and begins charging at 3 m/s. It works the hours and the weather that panels cannot: night, winter, and the windy fronts that flatten solar for days at a stretch. Straight up about the numbers: the 1500 W rating is measured at 11 m/s — a genuinely windy 40 km/h day, not a normal afternoon. On a decent coastal breeze you will see a few hundred watts, working around the clock. Think of it as a second charging source that carries the bank through the hours solar cannot, not a replacement for your panels. What It Actually Makes Wind speed Feels like Output 3 m/s (10.8 km/h) Leaves stirring 2 W 4 m/s (14 km/h) Light breeze 65 W 5 m/s (18 km/h) Flags start to lift 170 W 6 m/s (22 km/h) Steady inland breeze 290 W 7 m/s (25 km/h) Decent coastal day 450 W 8 m/s (29 km/h) Good working breeze 670 W 9 m/s (32 km/h) Strong breeze 990 W 10 m/s (36 km/h) Windy 1,300 W 11 m/s (39.6 km/h) Rated wind speed 1,490 W 12 m/s (43 km/h) Peak output 1,540 W 14 m/s (50 km/h) Near gale 1,400 W 16 m/s (58 km/h) Gale — output falls away 900 W That is the manufacturer's own measured curve, and we would rather you saw it before you bought. What the 1500 W in the name means: that is the most this turbine makes, and only in a 40 km/h wind. On a normal breezy day — 7 m/s, about 25 km/h — it makes about 450 W. Work out your battery bank and cable from the table above, not from the number in the name. What It Solves The overnight drain: the fridge, freezer and pumps pull on the house bank all night while the panels do nothing. A breeze feeds the bank the whole time you are asleep. The grey winter week: the fronts that flatten your solar for days are exactly the weather this machine works hardest in. The solar-only system that almost copes: a second charging source that peaks in the weather solar hates means a smaller battery bank doing the same job. The working property: off-grid homes, farms and telecom sites running a 48 V bank that needs steady mid-range charging through variable seasons. Less generator time: every hour of breeze is fuel you have not hauled and a service you have not done. Key Features Mid-range muscle: 1.5 kW rated, 53 kg net, built for a 48 V bank — the step up from the L1-1000 without the tower demands of the bigger machines. Starts early: turning at 2 m/s, charging from 3 m/s (11 km/h). Built to survive 50 m/s: that is 180 km/h. If your site sees worse than that, this is the wrong machine for it and we would rather say so. Three-blade rotor, 2.9 m: reinforced FRP blades on a reinforced die-cast aluminium body, IP54 generator. Permanent magnet generator: 3-phase AC synchronous with NdFeB magnets — no brushes to wear, no exciter current to waste. Two layers of protection: electromagnetic brake for overspeed, controller over-current protection plus dump load for overload. A Controller For This Turbine This listing is turbine only. The manufacturer’s matched controller for the L1-1500 is the WW20-48-48 — a pure-wind MPPT unit from its heavy-duty MWM series, rated 2 kW, with 42 A rated input current printed in its own documentation. It has no solar input at all. The manufacturer pairs no wind-solar hybrid controller with this model — if you want panels in the same system, run them on their own solar regulator into the same battery bank. That works fine alongside the WW20-48-48. What Else You'll Need A turbine on a pole is half a system. The other half is a mast in clean air, a controller rated for this turbine, cable sized for the run, breakers and an isolator, a dump load and a battery bank to feed. Cable sizing depends on run length, voltage and current — that is your electrician's call, not a line on a product page. Browse bus bars, breakers and wiring in the Electrical Supplies collection, and the full controller range here. Representative photos: the manufacturer supplies one set of photographs per turbine family, not per model. The L1-1500 you receive is this design, at the sizes in the spec table. Q & A Will it really make 1500 watts? At 11 m/s — a genuinely windy 40 km/h day — yes, and the manufacturer's curve shows it. On a typical usable breeze of 5 to 8 m/s you will see roughly 170 to 670 W, all day and all night. Work out what you will actually get from the output table above, not from the number in the product name. Why is there no kit option with a controller? The pairing is now confirmed: the manufacturer matches this turbine with its WW20-48-48, a 2 kW pure-wind MPPT unit with 42 A rated input current printed in its own documentation. This listing is turbine only while we bring that controller into the range — so for now you supply the controller, and the figure to size cable and breakers from is that 42 A, never the wattage in a product title. Why don't you publish a charging current in amps? The battery-side figure the manufacturer prints for the matched WW20-48-48 is in its own documentation: 42 A rated input and 42 A maximum output current — size cable and breakers from those, never from the wattage in a product title, and never from watts divided by volts. Is the cable from the turbine AC or DC? AC. The turbine generates 3-phase AC, and the rectifier inside the controller converts it to DC to charge the battery. A generator is not a battery: the voltage on that cable rises with rotor speed, which is exactly why a matched controller is built to take far more than the nominal 48 V on its wind input. Cable selection and protection are your electrician's job. Can I mount it on the roof? Yes — 3 to 6 m above the roofline, or 6 to 10 m on a ground mast. Remember this is a 53 kg machine with a 2.9 m rotor: the mounting structure is an engineering job, not an afterthought. Height is output — turbulence near buildings eats the wind before the blades see it, so the extra metres of clean air pay for themselves. What happens to it in a storm? The electromagnetic brake and the controller's overspeed protection wind it back, and the machine is built to survive 50 m/s (180 km/h). If your site regularly sees more than that, do not put this turbine on it. What is the warranty position? Twelve months. Professional installation by a licensed electrician is a condition of it — keep the electrician's invoice with your paperwork. Be aware the manufacturer treats blade damage from consistently extreme wind, and motor burnout after prolonged high-speed running, as case-by-case assessments rather than automatic cover. How long until it arrives? Built to order and sea-freighted — allow 4 to 6 weeks (up to 7 for WA and regional addresses). Delivery is free to Australia and New Zealand. Need it faster? Choose the Air Upgrade option above and it will land in around 2 to 3 weeks. The turbine arrives as two boxes. Specs Specification Detail Rated power 1500 W at 11 m/s (39.6 km/h) Maximum power output 1,540 W (reached at 12 m/s) Rated voltage 48 V DC Maximum voltage output 52.8 V Start-up wind speed 2 m/s (7.2 km/h) Cut-in wind speed 3 m/s (10.8 km/h) Rated wind speed 11 m/s (39.6 km/h) Survival / safe wind speed ≤50 m/s (≤180 km/h) Rotor diameter 2.9 m (2900 mm) Blade length 1.4 m (1400 mm) Number of blades 3 Blade material Reinforced FRP Body material Reinforced die-cast aluminium Magnet material NdFeB Generator type 3-phase AC permanent magnet synchronous Generator speed 500 rpm Control mode / over-speed protection Electromagnetic brake Overload protection Controller over-current protection + dump load Wind direction adjustment Auto yaw Generator protection grade IP54 Working temperature −20 °C to +50 °C Working humidity 0–90% RH, non-condensing Mount height Ground 6–10 m · rooftop 3–6 m above the roofline Design life ≥20 years Warranty 1 year Colour White Net weight 53 kg Gross weight 57 kg Packing Two boxes — 670 × 480 × 260 mm and 1470 × 270 × 270 mm Certification CE marked to the Low Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU and Machinery Directive 2006/42/EC. Tested to EN 61400-2 (small wind turbines), EN ISO 12100 and EN 60204-1. CE is a European mark and carries no legal standing in Australia. Watch Me