Cut before it is bent

The body starts as a flat sheet. Before any bending, the openings are cut: a window for the screen and holes for the MC4 connectors, the control knob, the sensor port and the antenna. Cutting first keeps every opening exactly where it belongs once the sheet takes its final shape.

Bent on a press brake

The sheet is then formed on a press brake around a round tool. One smooth bend gives the body its rounded shape and makes it much stiffer than a flat panel, so it stays true on a windy roof for years. Each cover is bent the same way, which is why every Atlas body lines up with its blades and flanges without forcing.

Watch the bending in our short video on Instagram: Watch on Instagram

The front panel

The finished front panel is the part you use. On the left are the MC4 connectors: one pair for the main output to your inverter or battery, and the alternative inputs for wind and solar. In the middle, a red LED screen shows the live voltage, so you can see at a glance what the system is doing. Next to it are the control knob and the sensor port.

Using standard MC4 connectors means wind turbines and solar panels plug straight in, with no special tools and no loose terminals on the roof.

On a real roof

Here is a complete system on a city rooftop. A TESUP Magnum and a row of flexible solar panels are connected to the Atlas through MC4 connectors. The Atlas then feeds the inverter, which sits in a weatherproof cabinet on the same roof.

The blades are bent here too

The same care goes into the Atlas blades. They are bent to shape, painted and checked before they are packed for assembly.

What it means for you

A body that is cut, bent and fitted with care is a body you never have to think about. Your wind turbine and solar panels plug in with standard connectors, the screen shows you the voltage, and the whole system runs from one tidy panel.

Dozens of parts, one machine

Take the Atlas apart and you find a top and a bottom flange, a set of curved aluminium blades, a main shaft, a generator with copper windings and permanent magnets, bearings, a body made of covers and side sheets, a control panel with connectors, a display and a sensor port, and the cabling and fasteners that hold it all together. Each part is made to its own drawing, and each one has to meet the next within fractions of a millimetre.

Metal that has to be exactly right

Metal is where a wind turbine is won or lost. Each Atlas blade starts as a flat sheet of 1.2 mm aluminium. It is cut, then formed into a precise curve, because the shape of that curve decides how much energy the blade can take from the wind. The flanges that hold the blades are cut to tight tolerances, so the rotor spins true and stays balanced.

Shafts are machined and fitted by hand, and steel frames and fixtures are welded by trained welders. None of this can be rushed: a weld that is slightly off or a shaft that is slightly out of line shows up later as noise, vibration or wear.

The Magnum body is aluminium, made in precision moulds so that every body has exactly the same shape and fit.

The generator: copper, magnets and patience

The generator is the heart of the turbine. Enamelled copper wire is wound into coils, the coils are fitted into the stator, and the windings are tied, insulated and checked. Permanent magnets turn the spinning rotor into electricity. It is careful, repetitive work, and a single loose turn or a damaged coating can cost efficiency for years.

Electronics you can rely on

Power from the generator goes through our charge controller, which manages charging and connects to the MyTESUP app. Every controller is assembled and wired by hand, and every connection is checked before the cover goes on.

Tested, then packed with care

Every unit is tested before it ships. Then it is packed with care, so that it reaches you in the condition it left us.

Why this matters to you

A wind turbine works outdoors, through storms, frost and summer heat, for many years. Precise metalwork, careful winding and checked electronics are what make it quiet, efficient and safe for that long. It is also why we back our turbines with a 2-year warranty and a support team that knows every part inside them.

Over the last one to two years, the materials that go into every Magnum have become a lot more expensive. Here is what it really costs to build one today.

What is inside a Magnum

A Magnum turns wind into electricity with a permanent-magnet generator. That generator needs three things above all: strong magnets, a lot of copper and a sturdy aluminium structure around them. All three have risen in price, some of them sharply.

Magnets: +65%

The permanent magnets in the generator are what turn the spinning rotor into electricity. We buy exactly the same magnet today as we did last year, so the comparison is like for like: since February 2026 we have paid 65% more for each one than we did in June 2025.

Rare earths: +60%

Those magnets are made from rare earths, mainly an oxide of neodymium and praseodymium (NdPr). In 2025, China tightened its controls on rare-earth exports, and the raw material became scarcer. By February 2026 the spot price had risen 89% compared with February 2025. It has eased a little since, but on 27 October 2026 it was still 60% higher.

Copper: +58%

Copper carries the current: it is in the generator windings and in the cabling. In September 2026 it reached a record high on the London Metal Exchange, and through September and October it has traded about 58% above its 2024 average. Mine supply is tight and stocks in exchange warehouses are very low.

Copper winding wire: +37%

Every Magnum generator is wound with enamelled copper wire. Our own invoices for the same 0.70 mm wire show the price per kilo, in euros, up 37% between June 2024 and October 2026. That is the wire that goes into every generator we build.

Aluminium: +26%

Aluminium gives the Magnum its frame, blade parts and housings: strong, light and resistant to the weather. On the London Metal Exchange it is now about 26% above its 2024 average, and in September 2026 it touched 36% above. Stocks in exchange warehouses are at their lowest for decades.

Energy, machinery and labour costs have also risen over the same period.

What this means for you

We have not changed the Magnum to save money. It is built with the same magnets, the same copper and the same aluminium as before, and every unit is tested before it ships. Our lead times stay the same.

What has changed is what those materials cost. Most of them are still close to their highest prices in years. That is why our Black Friday price is a real saving on a turbine whose parts cost more to buy than ever.

If you have been thinking about adding your own wind power at home, this is a good moment to do it.

Sources: TESUP purchase invoices (magnets, copper wire); Shanghai Metals Market; World Bank Commodity Price Data (Pink Sheet); London Metal Exchange. Prices to October 2026.

The great winter swap

The Met Office's long-term averages for the UK tell the story in two lines. Sunshine falls from 173 hours in July to just 47 hours in January. Over the same months, the average wind speed rises from 7.9 to 10.8 knots, or from about 4 to 5.5 metres per second. As the sun fades, the wind picks up.

A little more wind, a lot more energy

Wind speed and wind energy are not the same thing. The energy in the wind rises with the cube of its speed, so a small step up in speed makes a big difference. January's average wind is about 37% faster than July's, but it carries roughly 2.6 times the energy. In the same months, the sun shines about 3.7 times less.

Two halves of the year

Split the year in two and the pattern is even clearer. October to March brings only 30% of the year's sunshine: 421 of 1,403 hours. By our estimate from the monthly averages, it brings nearly two-thirds of the year's wind energy. Government figures for small renewable installations show the same rhythm: wind does its best work in autumn and winter, solar in spring and summer.

The night shift

Winter evenings are when a home needs light and heat, and by then the sun has already set. The wind does not keep office hours. It blows after dark, through long nights and grey days. Atlas with Low-Wind blades starts turning at just 2 metres per second, well below the January average, so it keeps working through the calmer days too.

Sun and wind, one team

This is why wind and solar work so well together. Our flexible solar panels lead from April to September, and Atlas and Magnum lead from October to March. Together they spread your home's own power across the whole year, instead of leaving you short just when the evenings are longest.

Sunshine and wind: Met Office UK climate averages, 1991 to 2020 (wind at 10 m). Seasonal pattern: UK government Feed-in Tariff load factor analysis. Sunset times for London on 24 and 25 October 2026. Turbine figures: TESUP product data. Wind energy share estimated from monthly mean wind speeds.

Two storms in one week

Storm Austen was named on 20 October and brought yellow wind warnings to South West England, South Wales and the south coast. Storm Boelo followed at the weekend, with amber warnings for Scotland, parts of Northern Ireland and northern England, widespread gusts of 60 to 70 mph and up to 80 mph on exposed coasts. In wind-speed terms, that is about 27 to 36 metres per second.

Zoom out and October looks even busier. Hurricane Isaias made landfall near Destin, Florida, on 9 October with winds of 105 mph. Its remnants then fed a new low that deepened rapidly near Iceland on 14 October, with gusts of about 128 mph. Storm Adam brought floods to eastern Spain, and Storm Austen went on to hit Brittany with gusts of 100 mph before crossing into Germany.

Where the storm sits on our turbines' range

Every turbine is built for a range of wind. Atlas, our vertical-axis turbine, takes one of three swappable blade sets: Low-Wind for 2 to 20 m/s, Moderate-Wind for 4 to 25 m/s and High-Wind for 5 to 35 m/s. The High-Wind set has six smaller blades and is made for storm-prone coastal sites, so it covers gusts of up to about 78 mph. Magnum, our three-blade horizontal turbine, starts generating at 6 m/s and keeps climbing to its peak at 22 m/s.

Windy days are the best days

Strong wind is when a turbine earns its keep. Magnum makes 1 kW at 10 m/s, 3.5 kW at its rated 15 m/s and 10.9 kW at 22 m/s. Power rises steeply with wind speed: double the wind from 10 to 20 m/s and Magnum's output grows about eight times, from 1 kW to 8.2 kW. One stormy afternoon can make more electricity than a whole calm week.

How Atlas and Magnum protect themselves

Both turbines use the same motor, rated for 15 kW continuous and 22 kW peak. Atlas typically delivers about 1 kW and Magnum up to 10.9 kW, so the motor always has headroom when a gust hits. With a TESUP charge controller, there is a second layer: the controller brakes the turbine automatically when its output goes above the limit you choose, in the MyTESUP app or on the controller itself. It is storm protection you can set from your phone.

Five things to check before the next gale

1. Set your brake limit in the MyTESUP app before the storm arrives.
2. If your Atlas has Low-Wind blades and the forecast shows sustained winds above 20 m/s, take them off or switch to Moderate-Wind or High-Wind blades.
3. Check that the mounting bolts and brackets are tight.
4. Secure loose cables so they cannot whip in the wind.
5. After the storm, take a look and listen. If anything looks or sounds different, contact our support team.

Make the storms work for you

More named storms will come before spring. With the right blade set and your brake limit in place, every gale becomes free power for your home. Not sure which turbine or blades suit your site? Our team will help you choose.

Storm details: Met Office, October 2026. Turbine figures: TESUP product data. Wind speeds converted at 1 m/s = 2.24 mph.

TESUP operates locally in 36 countries, and this month's turbines reached far beyond our home markets. Here is the month on a map. We only show countries, so every customer's name and address stays private.

Five continents in one month

Most turbines stayed in Europe, but plenty travelled much further: to the United States, South Africa, Australia, New Zealand and Taiwan. Some will start turning in the spring sunshine of the southern hemisphere, while others arrive just in time for the autumn winds of the north.

Europe, from the Finnish lakes to the Atlantic

In Europe, turbines went to 18 countries: the United Kingdom, Ireland, Germany, the Netherlands, Belgium, France, Portugal, Spain, Italy, Austria, Slovenia, Slovakia, Poland, Denmark, Sweden, Finland, Greece and Bulgaria.

One month, one planet

Put the whole month together and it looks like this. Twenty hours of time difference separate the US West Coast from New Zealand, so somewhere on the map the sun is always up. The longest trip was more than 18,000 km, and the destinations stretch from 61 degrees north to 40 degrees south.

Atlas led the way

Atlas, our vertical-axis wind turbine, was the most popular choice again. It turns around a vertical shaft, so it catches wind from any direction without turning to face it. That suits rooftops, gardens and gusty sites anywhere on the map.

Low wind? No problem

Every Atlas comes with a choice of blades. The standard set suits everyday wind. The low-wind set starts turning at just 2 m/s, for places where the wind is light for much of the year. This month the two were almost neck and neck, and some customers took both so they can swap later.

Magnum, as a complete kit

Magnum is our horizontal-axis turbine with a 15 kW motor and up to 12 kW peak. Most Magnum customers chose the complete kit, with the blade set and charge controller in the same order, and many added the battery version for a battery system.

Boxed, labelled and on the way

Every turbine leaves our workshop in its own box, labelled with its serial number and wrapped on a pallet. We send each order with a tracking number, so customers can follow their turbine on its way to them.

Thank you

To everyone who ordered this month, from the Finnish lakes to New Zealand: thank you. Your turbines are why we keep building. Wherever you are, in one of the 36 countries where we operate locally or beyond, start with the turbine that suits your wind.

Source: TESUP order data, 26 September to 24 October 2026. Photographs and graphics: TESUP.

A windy day on the river

Walk along the river at Hammersmith on a day like this and you can feel the wind pushing up the Thames. The water is choppy, the light keeps changing and the trees on the far bank bend and settle, bend and settle. Every gust is energy that a turbine could turn into electricity.

The windy-day sum

More than 100,000 TESUP wind turbines have been sold around the world. Imagine each of them making 10 kWh today. That is 1,000,000 kWh, a full gigawatt-hour, in a single day.

What a gigawatt-hour looks like

A typical UK home uses about 2,700 kWh of electricity a year, or roughly 7.4 kWh a day. So 1,000,000 kWh would cover around 135,000 homes for the whole day. Or boil about 37 million cups of tea. Or drive an electric car around 6 million km, nearly 150 times round the Earth.

Is 10 kWh a day realistic?

Ten kWh in a day means an average of about 420 W, around the clock. On a gusty day that is within reach of an Atlas or a Magnum, but the wind is never the same everywhere, and real output depends on the site, the height, the turbine and the blade set. So treat this as a what-if, not a meter reading. On calmer days the numbers are smaller, which is exactly why Atlas has a low-wind blade set that starts turning at just 2 m/s.

Hammersmith Bridge

The green suspension bridge in these photos opened in 1887. It was designed by Sir Joseph Bazalgette, the engineer behind London's Victorian sewers, and it replaced the first Hammersmith Bridge of 1827, the first suspension bridge across the Thames. Every spring the Boat Race between Oxford and Cambridge passes underneath it.

The planes tell you the wind

Planes land into the wind. When the wind blows from the west, as it does in London for much of the year, aircraft heading for Heathrow come in over the city from the east, right across the river at Hammersmith. So when you see them lined up overhead, there is a westerly breeze, and somewhere a turbine is turning.

Your share of the wind

If you have a roof, a garden or a field that catches the breeze, you could be part of the next windy-day sum. Pick the turbine that suits your wind and let the gusts do the work.

Sources: Ofgem, typical domestic consumption values; Heathrow Airport, runway operations; Wikipedia, Hammersmith Bridge. The windy-day sum is an illustration, not measured output. Photographs: TESUP, Hammersmith, October 2026.

We are proud every time an Atlas goes to a home, a farm or a workshop. When it goes to a university, it feels a little different. Universities are where engineers learn to measure, test and question things, and where the next generation of the energy transition is trained. So let us take a short walk through Dublin, a city built by engineers, on a bay that never runs short of wind.

A university of engineers

TU Dublin was created on 1 January 2019, when the Dublin Institute of Technology and the Institutes of Technology in Blanchardstown and Tallaght joined together to become Ireland's first technological university. Its roots go much further back, to the City of Dublin Technical Schools founded in 1887. Today around 28,500 students study there, from engineering and computing to business, media and culinary arts.

A bay full of wind

Dublin sits on a wide bay that opens straight onto the Irish Sea, between the cliffs of Howth Head to the north and Dalkey to the south. Above the south wall of the port stand the twin Poolbeg chimneys, about 207 metres tall, the highest structures in Dublin and a reminder of the power station that once fed the city. On a breezy day you can feel the wind come in off the water, and Ireland as a whole sits right in the path of the Atlantic westerlies.

A country that runs more and more on wind

Wind already supplies about a third of the electricity on the island of Ireland. In 2024 it covered 32 percent, and in December, when the Atlantic storms roll in, wind alone met 41 percent of demand. Ireland's Climate Action Plan aims for 80 percent renewable electricity by 2030, with 9 gigawatts of onshore wind and at least 5 gigawatts offshore. Big wind farms carry most of that load, but small turbines like Atlas show the same physics at a scale you can touch.

Why Atlas

Atlas is our vertical-axis wind turbine. Because it turns around a vertical shaft, it catches wind from any direction without having to point into it, which suits cities, rooftops and gusty sites. Every Atlas can be fitted with one of three swappable aluminium blade sets: Low-Wind for 2 to 20 m/s, Moderate-Wind for 4 to 25 m/s and High-Wind for 5 to 35 m/s. The blades are 65 percent lighter than steel, so they react the moment the wind picks up. It is compact and easy to watch at work, which makes it a fine turbine for anyone who wants to understand wind power, not just use it.

From the bay to the campus

A small turbine is one of the best ways to make wind energy tangible: you can watch it start in a light breeze, measure its speed, its voltage and its output, and compare the numbers with the forecast. Whatever its new home on campus turns out to be, we are delighted that an Atlas is joining a university with more than a century of technical education behind it. Go raibh maith agat, TU Dublin.

Sources: Technological University Dublin; Higher Education Authority, TU Dublin profile; Wind Energy Ireland, annual report 2024; EirGrid, system data December 2024; Government of Ireland, Climate Action Plan 2025 (IEA summary); Wikipedia, Poolbeg Generating Station and Ha'penny Bridge. Images via Wikimedia Commons, public domain or CC0 as credited; Atlas photographs: TESUP.

Compressed air powers much of the daily work in a turbine workshop, from pneumatic tools to blow-off guns. Until now the compressor and its air receiver stood inside the production hall, a few steps from the workbenches. They now sit along the outside wall under a new roof, behind timber rails, and the air reaches the hall through a fixed line in the wall.

Why the compressor had to go

A compressor is one of the most useful machines in any workshop, and one of the ones that deserve the most respect. Its air receiver is a pressure vessel that stores a great deal of energy, and the UK Health and Safety Executive lists over-pressure, explosion and overheating among the main hazards of compressed-air systems. A compressor is also loud, and the Carbon Trust estimates that more than 90 percent of the electricity it uses ends up as heat. Inside a production hall all of that sits right next to the people building turbines. Outside, it does not.

How we built it

The shelter is built from sawn timber posts, beams and rails, with corrugated roof sheets that slope away from the building wall so rainwater runs off away from the machines. It stands on the existing concrete kerb that runs along the building, which gives the equipment a solid, level base and a clear edge to the yard. The front and the far end are open above the rails, so air can move freely around the compressor, and two rows of rails keep people and forklifts at a safe distance while still allowing easy access for servicing.

Six safety gains

The move was simple, but it changes a lot inside the hall. The pressure vessel is no longer next to the workbenches. The hall is quieter, so the team can talk and hear warnings clearly. The compressor's heat goes into the open air instead of the workshop. The compressor draws cooler, cleaner outdoor air instead of warm, dusty air from the hall. The roof and rails protect the machines and keep people back. And the floor space it used to take up now goes back to production.

Safety is part of the product

Moving the compressor outside is a small building project with a big effect on everyday work in the hall. We believe a calm, safe workshop builds better turbines, and every Atlas and Magnum we ship is assembled and tested in workshops like this one.

Sources: Health and Safety Executive, HSG39 Compressed air safety; Carbon Trust, compressed air and heat recovery guidance. Photographs: TESUP.

Germany is the land of the Energiewende, the energy transition, and it is also a land of flags, maps and mountains. So before the two turbines reach their new home, let us take the scenic route: from the black, red and gold of the national flag to the black and gold of Baden-Württemberg, from the Rhine plain up to the Black Forest and the Alps.

The fan city

Karlsruhe is one of the few European cities that was drawn before it was built. In 1715 Margrave Karl Wilhelm of Baden-Durlach laid the foundation stone of a new palace in the Hardtwald forest and had 32 streets laid out from its tower like the ribs of a fan: nine of them run south into the town, the rest north into the woods. The plan is so clear that the city is still known as the Fächerstadt, the fan city, and the palace tower still sits at the centre of every map.

Radio waves, the first bicycle and the first car

For a city of its size Karlsruhe has an extraordinary record of invention. In November 1886 Heinrich Hertz, a young professor at the Technische Hochschule, produced and detected electromagnetic waves for the first time, proving that radio waves exist and travel at the speed of light; every wireless signal since has been measured in hertz. Karl Drais, born in Karlsruhe in 1785, built the Laufmaschine, the running machine of 1817 that became the bicycle. Carl Benz, born in the Karlsruhe district of Mühlburg in 1844, built the first petrol car. Today the city is home to the Karlsruhe Institute of Technology, the Federal Constitutional Court and the Federal Court of Justice, and with around 2,000 hours of sunshine a year it is one of Germany's sunniest cities too.

Between the Rhine and the Black Forest

Baden-Württemberg is Germany's third-largest state, home to about 11.2 million people and to engineering towns such as Stuttgart, Mannheim and Heidelberg. Karlsruhe sits on its western edge, on the flat and warm Upper Rhine Plain, a little over 100 metres above sea level. Look east from the city and the land rises quickly: first the dark wooded ridges of the Black Forest, then its highest point, the Feldberg at 1,493 metres, the highest mountain in Germany outside the Alps. Beyond the forest lie the limestone plateau of the Swabian Jura and, on the Swiss and Austrian border, Lake Constance.

A country that runs on wind

No large country has gone further with wind power than Germany. By the end of 2024 it had about 63.5 gigawatts of wind turbines on land and 9.2 gigawatts in the North Sea and the Baltic. Wind produced around 141 terawatt-hours of electricity in 2024, more than any other source, and renewables together covered roughly 55 percent of the country's electricity consumption. The targets for 2030 are 115 gigawatts on land and 30 gigawatts at sea. Most of that is big turbines on the windy northern plains, but the same wind blows over the Rhine valley, and a growing number of German households want a share of it in their own garden.

Two Magnums for Karlsruhe

The order from Karlsruhe is a complete pair: two Magnum horizontal wind turbines, each with a 15 kW motor and a peak output of 12 kW, two Magnum blade sets and two Magnum charge controllers. Both turbines are the battery version with the 0.90 mm winding, which can charge 12, 24 or 48 volt battery banks, so the owner can run them side by side on one bank or feed two separate systems.

Magnum is the largest horizontal turbine we make. Its three aerodynamic blades are balanced for high-speed running, the body is built for year-round outdoor duty, and the charge controller turns the turbine's wild alternating current into clean direct current for the batteries. Two of them on the edge of the Rhine valley, where the westerlies arrive after crossing France, will have plenty to do.

Why small wind suits Germany

Germany has millions of rooftop solar systems, but solar is quiet in the winter months when heating demand is highest. Wind is the opposite: it blows hardest between November and March, and it works at night. A Magnum next to a solar array and a battery bank fills exactly the gap that the panels leave, which is why so many of our German customers combine the two. From the fan city to the Baltic coast, that is the mix the Energiewende is built on, one garden at a time.

Sources: Wikipedia, Karlsruhe and Karlsruhe Palace; Karlsruhe Institute of Technology, Heinrich Hertz press releases; IEEE Milestones, First generation and experimental proof of electromagnetic waves 1886 to 1888; City of Mannheim, Karl Drais; Wikipedia, Carl Benz; Wikipedia, Feldberg (Black Forest); Statistisches Landesamt Baden-Württemberg, population 2024; Bundesnetzagentur, Growth in renewable energy in 2024; Umweltbundesamt and Fraunhofer ISE, electricity generation 2024; Clean Energy Wire, German wind targets. Photographs and paintings via Wikimedia Commons, public domain or CC0 as credited.