A Magnum on a mast, on an ordinary windy afternoon. Nothing staged, nothing edited — twenty-three seconds of a turbine doing the only thing a turbine is for. We will say plainly what we think of it: very probably the most powerful machine of its kind that anyone can buy, and very probably the most affordable. Then we will spend the rest of this page handing you what you need to test both halves of that sentence, because a claim you cannot check is worth nothing.
The Magnum in the video, running — watch it on YouTube.
What it makes, and the wind it takes
A Magnum can put 10 kWh into your system in a single hour. That is not a figure we are nervous about — it is on our own published curve, and you can read it off the chart at the top of this page. What we would rather you took away is the second half of the sentence: the wind that hour needs.
Nine kilowatts at 20 m/s, twelve at 22. Ten therefore lands around 21 m/s — roughly 76 km/h, a Beaufort 9 gale. That is a storm hour, not a Tuesday afternoon. The everyday numbers sit further down the curve: 3.8 kW at 15 m/s, about 2 kW at 12, and the rotor already earning from 6 m/s. Across a year that works out at somewhere between 2,500 and 9,000 kWh, depending entirely on where you put it.
Why the curve climbs so steeply is not marketing, it is the power equation: available wind power scales with the cube of wind speed. Double the wind and there is eight times the energy in it. That is why a turbine's headline figure tells you almost nothing on its own, and why the full curve tells you nearly everything.
Anyone can quote one number. Ask for the whole curve — that is the document that cannot be dressed up.
Why we think it is the most powerful of its kind
The motor inside a Magnum is rated 15 kW continuous — considerably more capacity than the machine is ever asked to deliver. That is deliberate. Headroom is what stops a generator cooking itself on the gusts, and running a generator permanently at its limit is the single most reliable way to kill a small turbine early. Feeding it is a rotor of 4.34 m² swept area on carbon fibre composite blades, driving a 24-magnet rotor with NdFeB N42 magnets and four kilograms of pure copper winding.
The details that do not photograph well are the ones that decide how long it lasts. Skewed magnet mounting, which cuts cogging torque by around 80% and lets the rotor start in light air instead of sitting stalled. Class 200 °C enamelled wire to IEC 60317-13, the insulation grade used in industrial servomotors and EV drivetrains. A silicon-steel laminated stator core rather than a cheap cast one that overheats. Machining held to ±0.05 mm. Put together, the blade aerodynamics reach a power coefficient of 0.45 in good wind, and with the electrical efficiency of that winding the machine converts around 43% of the energy passing through the rotor into electricity — at the top of what a small horizontal-axis turbine can do.
And very probably the most affordable in its class
A specification like that usually arrives with a price to match. Ours does not, and the reason is unglamorous: we make it ourselves. Over 270 components come out of our own European facilities — generators, electronic cards, carbon fibre blades, silicon-steel stator laminations, mounting hardware. There is no chain of distributors between the factory and your roof. That is the whole trick, and it is not one anybody can copy quickly.
Rather than leave you to guess at what a real machine costs, here is every line of it, at the prices on this store as this is published.
| Magnum generator — 15 kW motor, 12 kW peak | CA$499 CA$999 |
| Blade set — carbon fibre composite, swappable | CA$599 |
| Charge controller — sets the voltage limit, brakes the rotor in a storm | CA$499 |
| A complete, working machine | CA$1,597 |
Divide that however you find useful: roughly CA$133 for each kilowatt of peak output, or about CA$420 per kilowatt of the rated figure. If you already own a controller, take CA$499 off. Mounting hardware depends on where you are — in several of our markets the mast ships with the blade set, and elsewhere customers fabricate to our fitting, which is covered further down.
We are not asking you to take our word for either claim, because we are the ones selling it and every manufacturer says this about their own product. So go and compare — but compare properly. Ask for the whole power curve, not a single headline kilowatt. Ask the price of a complete working machine, not the price of whichever part sounds cheapest. Then put the two side by side. Ours are on the product page, itemised, with nothing held back for the checkout. If you find something that genuinely beats it on both counts, we would like to know — that is the sort of thing that changes what we build next.
What a turbine still needs from you
Being confident about the machine means being honest about everything around it. That CA$1,597 buys the turbine. Your site supplies the rest: a mast, a foundation or fixings into your structure, cabling down to wherever the power is going, batteries and an inverter if you are storing it, and whatever electrical work and permissions apply where you live. None of it is hidden — it is simply site-specific, and anyone who quotes you one all-in figure has not seen your site.
The mast deserves a paragraph of its own, because it is where most self-builds go wrong. The push on a rotor rises with the square of wind speed, so the 10 kWh hour is also the hour carrying roughly four and a half times the sideways force of a 10 m/s day. If you are making your own pole, spend on diameter before wall thickness: bending stiffness follows the fourth power of diameter, so widening a 50 mm tube to 60 mm at the same 3 mm wall buys about 78% more stiffness for 21% more steel, while doubling that wall to 6 mm buys 66% more for 87% more steel. Height costs you more than either — stiffness falls with the cube of unsupported length — so buy height with guy wires, not optimism. If a mast hums, the answer is a stiffer mast rather than rubber packing, because the noise is resonance and not roughness. And the one dimension you cannot improvise is the fitting: the Magnum head seats on a 37 mm inner diameter at the top of the pole.
Before any of it: measure your wind
Every figure above is worthless without one number we cannot supply: the wind at your address. Two houses on the same street can differ by a factor of two, and because power goes as the cube of speed, a modest difference in site is an enormous difference in output. An anemometer costs a fraction of a turbine and settles the question inside a season.
Then put your own measurements into the calculator on the Magnum page — your wind, your electricity price, your roof. For some of you it will say the numbers work comfortably. For others it will say a turbine is the wrong purchase at your address, and we would far rather it told you that before you bought one than after.
The most powerful of its kind, and very probably the most affordable. We believe both, and we have published the whole curve and itemised every part so you can decide for yourself instead of taking our word for it. Prices are those on this store on the day of publication and are checkable on the product page at any time. That is the only version of a claim like this worth making.