Silent rooftop wind turbines could generate half of a household’s energy needs


The use of wind turbines in households is becoming more and more popular. Wind power like other natural power sources can be quite volatile, but it’s still a highly sustainable power source for those who want to live an off-the-grid lifestyle. A Dutch renewable energy start-up called The Archimedes, developed this product named Liam F1 turbine which is a small and silent wind turbine that will change the way we view wind power. Their product will be able to generate 1,500 kWh of energy per year and can be installed on the rooftop of a house. The best part is, that when the Liam F1 is matched with solar panels, it can generate enough power for an entire household. This way you can alternate between the use of solar power and wind power, having a backup in case the weather conditions are not suitable for you.




88 Responses to “Silent rooftop wind turbines could generate half of a household’s energy needs”

  1. David McCarthy says:

    Err… Is the article about a wind turbine or solar power – seems to be some confusion!

    • Andy says:

      The comment is made in the text that combining this wind turbine with PV could cover the majority of your electricity needs (particularly if you have battery or other storage).

    • Herb says:

      No confusion. Wind IS a form of Solar!

      • Patrick says:

        adjective: solar

        of, relating to, or determined by the sun.

        wind is NOT a form of solar energy.

        • Stick says:

          Errr… And the root cause of wind is… Solar! The heat from the sun causes variations is atmospheric pressure, which causes wind. So wind energy IS solar energy.

        • Kendall says:

          Herb is correct, in that the sun is what powers the wind.

        • Clint Jaysiyel says:

          He’s being reductionist. The power of the wind comes from the sun. It creates heat that causes us to have wind. He’s being funny.

          • Serge says:

            Well, being the pedantic type, it all really goes back to Nuclear power. Shit! a greeny just knocked down my (nuclear) turbine/solar array.

        • Bruce says:

          Well, it would not help your house, but……


        • Pravin says:

          Sun is the source of all energy……

          • Matthew cox says:

            yeah ..coal is technically solar power …those plants grew in sunlight all those millennia ago….still lets not blur the lines

          • Walt says:

            Geothermal is no powered by the sun..

          • Sam Pike says:

            How does the sun make uranium then for nuclear energy ?

          • TritonSecure says:

            Actually… there are 4 primary sources of energy available to mankind.

            1. Solar (which includes ‘actual’ solar, along with wind, wave, hydro-electric & all fossil fuels (they’re nothing more than a very long-term storage battery for solar)

            2. Nuclear. All forms of energy derived from splitting or combining atoms (strictly, solar is nuclear, but I think we can consider the two to be sufficiently distinct – let’s allow for ‘nuclear’ to be man-controlled, if we need a constraint on the definition)

            3. Gravity. Tidal power (I can’t think of any others)

            4. Geothermal. Anything to do with extracting heat from within the planet. Note than around half the heat inside the earth is a product of the planet’s formation, the other half is believed to be nuclear-derived.

          • Joel Baird says:

            …by that rationale, the sun is powered by nuclear fusion therefor the wind is nuclear powered.

        • woj says:

          ignorance is foolish mate

      • Candy says:

        You kill me, that’s like saying a pig is a form of cow! Please. Get educated.

      • Larry says:

        “Fossil fuels” are also a form of solar energy. Their solar energy arrived on earth a few million years ago, however, and was used by plant life to trap the carbon from carbon dioxide as coal or hydrocarbons.
        To distinguish, we could consider the term “direct solar” energy.

      • Bomephus says:

        For that matter, Oil and Coal’s energy came from the sun, too (just a long time ago)

    • Mark Pregler says:

      Any off grid system should have both. I am constructing a system that has a third element of power generation…. Water turbine.

  2. Zeo says:

    Nice design, kinda artistic, but practical. So, how much and what are the specs?

  3. Vijay Jolly says:

    Please provide some technical details regarding the Roof Top Wind Turbine

    • Andy says:

      Watching the video there is some data there; the 750mm diameter version is rated at 200W and the 1.5m diameter unit at 1kW.

      • Robert Lehmert says:

        My rooftop PV system nominally generates 5.76 kW and cost $24,000 delivered and installed in Vermont, before any incentives. It is sufficient to completely displace an electric bill of about $115 a month.

        • Star says:

          That’s about 17 years to pay off the cost of the system before you actually benefit from being self sufficient? How long is the warranty for this system? Totally serious, I would love to have solar or wind power, but not sure if it’s cost effective, especially if the system needs replacement, repair, or breaks before I could benefit after paying it off.

          • Trey says:

            Your math assumes your energy supplier doesn’t raise their prices per kwH for the next 17 years and that his system only functions at the base or “nominal” level for that entire period of time. My rooftop system generates approx 6.34 kW and cost roughly the same after fed and local incentives. We did not finance the system and expect it to generate enough energy to offset the cost in roughly 7 yrs. It has a 25 yr warranty. Hope this helps.

        • Paul says:

          So about a 17 year payback not including interest….so maybe more like 20 year.

          • kejji says:

            Just for your information, 115$ because the price of 1Kwh is actualy low
            Suppose that after 5 years the price is double, what will happen?

          • sslsocal says:

            Try an online solar PV cost/benefit calculator.

            Incentives can provide 30% in federal tax credits so a $24k system becomes $17k with the fed tax credit and in so. Calif your ROI would be about 7-1/2 years not accounting for future rate increases.

            It’s even lower when you take state and local rebates into account.

        • Doug VanEtten says:

          That looks like a 17 year payback?

  4. Ella Dikeman says:

    your generator looks promising, how much would it cost a homeowner to buy one and get it in working order,?

  5. Werner says:

    How can we find out price of turbine if interested? We are in Northern WI, USA

  6. Nick says:

    Hi. I’m interested to find out more about the roof wind turbine. Also would like too know if it can be installed in Malta & how much it would cost. thanks

  7. weseld1 says:

    “Their product will be able to generate 1,500 kWh of energy per year” 1 year = 8766 hours, so this turbine will generate 1500 kWh / 8766 hr = 171 watts. Almost enough to light three 60w light bulbs. It will “could generate half of a household’s energy needs” IF the household wanted to live up to the lighting standards of, say, 1900. Never mind providing any power for heating, cooking, or washing which are a lot more than 171 watts. It is a nice little wind turbine and I would want one on my cabin roof for emergency power to my radio, but it is a long way from meeting half the needs of a household.

    • Michael Hartley says:

      Guess you haven’t yet switched to LED’s!

    • Opie says:

      I have to ask who is this day age uses conventional light bulbs? If your house is loaded with 60w light bulbs than maybe alternative energy is not for you.

    • Mark says:

      From the website “Considering the electricity use of an average Dutch household lies around 3300 kwh (kilowatt hours) a year, it is possible to generate half of your used electricity by installing the Archimedes on your roof. “

    • Stephen Heatley says:

      Your maths are wrong…..kwh are the number of watts per hour, ie, in this case 1500 watts per hour, and, with the right wind speed. If the output was 1500 watts per hour over a year then the total output would be 8766 hours times 1,500, ie, 4383watts plus 8766 watts. However wind speeds vary from strong to nill, so output might only be 2 hours per day maximum, which would still give 3 kwhs of power, enough for most to live on.

      • shots says:

        sorry but you are reading this wrong it says and I quote ” Their product will be able to generate 1,500 kWh of energy per year.” That is per year.. I use between 22 and 35 kilowatts per day depending on the time of the year.. more in the summer for the pool and AC… so the total per year at an average of 25 kilowatts per day is only good for 60 days.. sorry they go to make it better then that for me .. and I have no incandescent bulbs in my house

    • Mary says:

      Thank you for making this point. We use about 2200 kWh per MONTH. It would take 9 of these to provide half our needs.

      Still, I am glad to see the technology. Someday, I hope it is feasible. If I had the money, I would seriously be looking into this kind of thing just to take pressure off oil.

    • sslsocal says:

      Geez, really? Total kWh divided by the total hours annually (or minutes or seconds) is an entirely meaningless and pointless calculation.

      I consume 10 kWh per day in my 3-bedroom so. Calif. house. 1,500 kWh would provide 138 days of power or 38% of my total annual electricity consumption and that includes charging my electric VW e-Golf. And yes, I have LED lighting, nat gas furnace and a nat gas water heater.

  8. Kurt says:

    Please send details costs etc
    To South Africa. Port Elizabeth. Actually Jeffreys Bay
    Thank you

  9. alice h says:

    I always wonder why people don’t understand that a posting about an item is not necessarily from the originator and thus will not supply further information. Bestir yourselves and do some research people! If you enter the name of the thing you’re curious about into a search engine you too could find information like this

  10. Denise says:

    Interested, need more information please

  11. Kootzie says:

    The claim that this windmill could meet half of a household’s energy needs is massively overstated and is only true for a superinsulated passive solar off-grid house with an efficient energy storage system in an area with high average/sustained windspeed

  12. Pascal says:

    You relate to the smaller model right? The 1.5m model would do better no? A small battery bank might allow lighting, tv, fridge (ours uses 38watts an hour) and other small things to run on it I assume

  13. Manjunath LM says:

    I am interested to procure, trade and install. Kindly send me the detail specification and price

  14. says:

    please send info and prices. Thank you
    Ian Thomas

  15. Karen Lundgren says:

    Please read to the bottom of the page…..

    Goodshomedesign is an online home design magazine but do not sell the products reviewed or showcased on this site. We try to show you what is new and beautiful in this area, arranged in several categories (apartments, ideas, interior design, home decor, home design, kitchen, bedroom, bathroom, furniture, hotels & resorts, architecture) related to the area and style.

    See more at:

  16. Mm says:

    A typical house in California only needs about 10k kwH.
    Two of these, and 10 solar PV and a couple of power walls from Tesla could make you grid free.

  17. Tyson says:

    Nope. Just nope. kW is the instantaneous power output. kWh is a measure of energy and is kW x hours.

  18. Joanne says:

    I want a wind turbine where do I order

  19. Seawind says:

    Thanks for clearing how much they use to make an estimate of how much it produces. Unfortunately, this summer, we used about 3000 in our RV each month. Not a good option for South Texas summers.

  20. Theresa says:

    You took my thoughts. Lol. Thanks.

  21. Russell Barndt says:

    Every Rush Limbaugh fan still use 60watt loght bulbs but many Rushsees will actually throw CFC light bulbs away ,some will also throw LED away

  22. Gary Mathis says:

    LOL. 1.5 KWh per year? The grid will provide the average house with 420 MWh per year. This is 3d world starvation energy.

  23. Don says:

    This seems to be the manufacturer’s website. I’m waiting on a response from the US reseller.


  24. michelle says:

    does it need water to convert energy?

  25. Azmi says:

    Have this unit being sold world wide…?

  26. Bhushan Nirgude says:

    what is its cost variant wise and maintenance ?

  27. Jon says:

    These specific wind turbines have been kicking about for years and years. Why no working prototype after all these years? Because they are a scam, they cannot work, they won’t work, ask any engineer and they will tell you that they are just plane stupid. They claim to generate 1500kWh per year – I have two responses to that… They won’t generate anything like that, in fact they probably won’t generate anything at all… And even if they did then that is 4kWh a day which is a tiny fraction of what a house uses. If you want t a wind turbine then buy a windy property out of town with access to the top of a windy hill and buy a normal machine from a reputable company.

  28. Scott says:

    Does anyone remember when the internet first started, how I believe its purpose was for information to be shared for people to get instruction on how to build things, and the planes were shared for free. Then greed took over as it always does and everything is for sale. Sad world we now live in today.

  29. Bryan says:

    If the average US household power need is just over 10,000 kWh, how can 1.5 kWh be half of annual power need? Granted, this all depends on where you live, but the boasting has got to stop and manufacturers need to start developing products that can meet such expectations. We want wind and solar, but we need reasonably affordable and effective products to take advantage of these resources.

  30. Caspar says:

    What the manufacturers of these small windmills generally don’t mention is the poor efficiency. While the turbine will start turning at low wind speeds, it won’t actually generate meaningful energy below 5,5m/s.

  31. Timmy says:

    Gary I think you have zeros in all the wrong places. They said 1500 kWh not 1.5. Also the average home does not use 420 MWh a year. It is more like 4.2 MWh a year or 4200 kWh. So just shy of a third of the ‘average’ home’s energy consumption. If the average home used 420 MWh, electricity bills would be like ten grand a month.

  32. David says:

    Wind is the result of the heating of air by the sun. The heated air rises causing cooler air to move in to fill the lower pressure area. Think convection currents. Amazingly there are a lot of things happening which are really solar by products.

  33. Steve says:

    This is still in the design and testing phase. They started testing a larger one that will only be rated at about 500watts. It might supply half a homes needs if you are very conservative and live in a windy area.

  34. Robert R says:

    $24,000? Grossly overpriced. Might be $500 cost to build. Ridiculous

  35. Northwind Homestead says:

    In a way the statement is correct. The sun causes the pressure variations that crrate wind.
    So yes, wind is solar energy.

  36. Rob Talmadge says:

    price is not listed on their web site. how much?

  37. AAron says:

    SO, I did not read the article, only the comments.
    My conclusion from the comments is this.
    Buy more solar panels because wind is solar power.

    All a by-product of solar energy: Earth, Air, Fire, Water
    Everything that exists is created by the sun.

    It’s a wind turbine, not a solar panel.

  38. Guy says:

    Not artistic, natural and geometric. Its a mathematically sound shape.

  39. Jon Green says:

    the average american household uses 10,8 kwh of electricity per year so you’d need 8 of the larger units. You know where these things would go well? Put them on top of street light poles. Even thousands of the smaller units per city would have a big effect.

  40. Carol Ring says:

    How safe are these turbines for birds?

  41. Geewhizbang says:

    So 1,500 kWh of electricity is about $220 per year at fifteen cents per kWh. Unless this costs less than $2k including batteries and inverter it only makes sense in areas with expensive power like Hawaii or perhaps in remote locations.

  42. Kim Newman says:

    Can you email some info please

  43. SURINDER SINGH says:


  44. Cyndy says:

    Wind Energy and Wind Power. Wind is a form of solar energy. Winds are caused by the uneven heating of the atmosphere by the sun, the irregularities of the earth’s surface, and rotation of the earth.

  45. Ashley says:

    I work in solar and that’s actually about the average of half a household’s energy use over a year. I see hundreds of utility bills a week. And there are actually some people out there that use that little.

  46. Glenn says:

    The Moon creates tidal energy.

  47. Robin says:

    Cut to the chase….how much is it and where is it sold?

  48. NA says:

    Hello, has any research been carried out as to the effects on bats of these turbines? Birds and bats are affected by large wind turbines as we know because of the spinning blades…but what is the potential danger to bats from this product? Has anyone looked in to this? Thank you.

  49. Robert Dew says:

    I’d be very interested to know what sort of cost these turbines are and are they readily available.
    Currently have 7.5Kw of solar on the roof and have also been interested in combining it with wind when readily available and reasonably priced.

  50. ruoaa says:

    Everybody should be interested in houses small wind turbine tech , it’s more environment friendly than solar cells and they can be made more easily .

  51. Leon says:

    Its pretty, and it may have less noise, but does it produce as well as a cheap propstyle with the same 200W Generator?

  52. Paquita says:

    The real question is what is the price and the ROI. Also, does it have to be installed on a pole or can it go on a home roof.

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