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Robots Built a House That Generates More Energy Than It Needs (dwell.com)

MikeChino writes: The world's first home designed, planned, and built with mainly digital processes just opened its doors in Switzerland. Developed by eight ETH Zurich professors, DFAB House is a pilot project showcasing futuristic building technologies that may someday work their way into our homes. It's topped with a solar array that generates, on average, 1.5 times more energy than the unit needs (an intelligent control system eliminates the risk of load peaks), [and there are waste heat recovery systems to recycle heat from shower trays back into the boiler.] Some of the pioneering ETH-developed construction processes include: "Mesh Mould technology, in which an autonomous 'In Situ Fabricator' robot builds a 3D mesh formwork for concrete load-bearing walls; Smart Slab, a lightweight concrete slab with 3D-printed sand formwork that's less than half the weight of a conventional concrete slab; Smart Dynamic Casting, an automatic robotic slip-forming process; and Spatial Timber Assemblies, a digital prefabrication process that uses a dual robot system to create timber frame modules," reports Dwell, adding that people "manually filled in formwork, bolted CNC-milled and 3D-printed pieces into place, and tweaked the digital design process."

29 of 45 comments (clear)

  1. Bitcoin by PopeRatzo · · Score: 4, Funny

    So, could I use the excess energy the house generates to mine cryptocurrency so it will pay for itself?

    To be honest, I get the feeling it might be exhausting to live in a house that's working harder than I am.

    --
    You are welcome on my lawn.
    1. Re:Bitcoin by bobstreo · · Score: 4, Insightful

      So, could I use the excess energy the house generates to mine cryptocurrency so it will pay for itself?

      To be honest, I get the feeling it might be exhausting to live in a house that's working harder than I am.

      It would probably be more cost effective to create a grow room for umm "hydroponic vegetables" or something, depending on the local laws regarding growing things which can vary by county and state.

    2. Re:Bitcoin by Oswald+McWeany · · Score: 1

      To be honest, I get the feeling it might be exhausting to live in a house that's working harder than I am.

      You must not be one of my coworkers.

      --
      "That's the way to do it" - Punch
  2. "Smart Slab" in action by SlaveToTheGrind · · Score: 1

    Smart Slab, a lightweight concrete slab with 3D-printed sand formwork that's less than half the weight of a conventional concrete slab

    Typically cutting corners like that ends like this.

    But... but... they're 3D printing it this time!!!1

    1. Re:"Smart Slab" in action by Locke2005 · · Score: 3, Insightful

      That's China, where they _really_ cut corners! The Swiss don't cut corners! They just make things extremely expensive because they are designed to last for several generations.

      --
      I've abandoned my search for truth; now I'm just looking for some useful delusions.
    2. Re:"Smart Slab" in action by Anonymous Coward · · Score: 1

      Sometime Chinese building are too sturdy, though.

    3. Re:"Smart Slab" in action by Chas · · Score: 1

      The picture you link to is a result of poorly planned excavation.
      They were digging out for an underground parking structure.
      But they were piling the excavated earth on the far side of the building, creating uneven lateral pressure.
      After heavy rains, they had the excavated pit erode out from underneath the building.

      Over it goes.

      --


      Chas - The one, the only.
      THANK GOD!!!
    4. Re:"Smart Slab" in action by nospam007 · · Score: 1

      "That's China, where they _really_ cut corners! The Swiss don't cut corners! "

      Exactly! They even make their cheese with holes to make them lighter. This concrete is done the same way.

    5. Re:"Smart Slab" in action by Farmer+Tim · · Score: 1

      The Swiss don't cut corners!

      Then why are their clocks round? :p

      --
      Blank until /. makes another boneheaded UI decision.
  3. Re:That's Fetch by Locke2005 · · Score: 2

    "Stop Trying to Make Fetch Happen!"

    --
    I've abandoned my search for truth; now I'm just looking for some useful delusions.
  4. Crap you can do that right now without the robots by Crashmarik · · Score: 1, Insightful

    https://www.walmart.com/ip/Roc...

    2KW Gas Generator from Walmart 370 bucks.

  5. Re:Get the fuck out by denzacar · · Score: 1

    You are confusing presentation of technological capabilities (a display of what certain technique and technology can do) with architectural design (the "comfortable, convenient and not an eysore" bit).
    Also, with science and research.

    I'm sorry... but there is no award for that.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
  6. Typical Humans by SuperKendall · · Score: 1

    Robots Built a House That Generates More Energy Than It Needs

    *Robot stares you straight in the eye*

    "Maybe more than YOU need HUMAN"

    *Robot sucks on power cord, eyes glow brighter and brighter as it leans back and shudders with delight*

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
    1. Re:Typical Humans by MrKaos · · Score: 1

      *Robot sucks on power cord, eyes glow brighter and brighter as it leans back and shudders with delight*

      muhahahahahahahahahaha!!!

      --
      My ism, it's full of beliefs.
  7. Re:Get the fuck out by Xenx · · Score: 1

    Not only that, but opinions aren't exactly universal. While some of the design would not be my first choice, it definitely is not ugly in my eyes. I would even bet some people truly like the way it looks.

  8. Re:"Digital processes" ... by Chas · · Score: 1

    Prefab.

    It means a new spin on a prefab home.

    They're basically saying that portions of the building structure were 3D printed or CNC'ed, then assembled on site.

    We've had net-positive buildings for years.
    We've had prefab net-positive buidlings for years.
    We've had 3D printed buildings and buildings with CNC'ed parts.

    They're just trying to claim that nobody's ever done it at this level before.
    And, possibly, they're right.

    --


    Chas - The one, the only.
    THANK GOD!!!
  9. Re:Iron mesh + conrete = doesn't last! by Chas · · Score: 1

    Depends on the concrete formulation and the type of steel used.
    It also depends on how soon the structure is used and the the climate it's situated in.

    Look at Roman aqueducts. Unlike modern concrete water diversion, aqueducts could sometimes sit for YEARS before water would be put through them (as it took so long to build).

    Also, you have two millennium old concrete structures still standing.

    Note that many of them have no steel in them. And most of the surviving examples are in relatively mild climates.

    There are things one can do to a concrete mix to make them last longer.
    And proper preparation of rebar, or even using non-metallic rebar (basalt/fiberglass) can make a HUGE difference.

    Also, your grandma's brick house has had a hell of a lot of maintenance done to it over the last 220 years (you'd probably be shocked by exactly how much).

    --


    Chas - The one, the only.
    THANK GOD!!!
  10. Re:That's Fetch by nospam007 · · Score: 2

    "Stop Trying to Make Fetch Happen!"

    Fetchez la vache!

  11. Re:Iron mesh + conrete = doesn't last! by nospam007 · · Score: 1

    "Brick walls from literally Roman times are still standing in my city."

    That's just because these walls have bricks only on the outside, inside they are all roman concrete, which is much better than ours.

  12. Re:Going too far by nospam007 · · Score: 1

    " The house was so well insulated that he wasn't able to use his kitchen oven, since the room temperature became too high."

    If he was Finnish, he could have used it as a sauna.

    BTW, I had a Scandinavian girlfriend once, not sure exactly which nationality, but during sex she always yelled: I'm not Finnish!

  13. Hydroponic by DrYak · · Score: 2

    It would probably be more cost effective to create a grow room for umm "hydroponic vegetables" or something, depending on the local laws regarding growing things which can vary by county and state.

    (Note: Though Switzerland is also federal, it is divided into cantons and comunes, not states and counties).

    Regarding the legality of growing the specific specie of "hydroponic vegetables" that you had in mind, the law is quite clear: you can go full commercial as long as your producing low... "vitamin" vegetable, and people are allowed to carry their snack (= small quantity for consumption) regardless of content of "vitamins".

    In practice, based on what I've heard from friends (sorry only anecdotes, no first-hand experience: I'm more a beer type of person), growing your own "high-vitamin" "hydroponic vegetables" for your own consumption is more or less tolerated, as long as it's not exploited commercially.

    So to go back to your proposition :
      - To recoup costs, they could grow nearly any other vegetables commercially and sell them, but not the "high-vitamin hydroponic vegetables" you had in mind (the commercial exploitation being the big practical "nono", the "high vitamin" content being the legal pretext to prevent it).

    But in practice, the canton (=state)-owned utility companies will pay you when buying back energy.
    It is common practice here around for anyone with local production (such as solar panels) to have special meters that can sell back electricity into the network.

    So most probably, they are going to earn the easiest money simply by injecting the extra electricity into the network.
    (No need to fuss with any agricultural work).

    --
    "Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
    1. Re:Hydroponic by balbeir · · Score: 1

      (Note: Though Switzerland is also federal, it is divided into cantons and comunes, not states and counties).

      Aha, so they are comune-ists !

      Thank's I'll show myself out now....

  14. Seriously: sell the electricity by DrYak · · Score: 1

    In all seriousness, you could indeed make money with the extra energy:
    Most state-owned utility company (including the one in canton Zurich where this is situated) will buy back electricity production.

    It's pretty common installation for anyone with local electricity production (such as the TFA's solar pannels) to have special electricity meters that can inject any exceeding electricity back into the network.

    --
    "Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
  15. In situ by DrYak · · Score: 2

    They're basically saying that portions of the building structure were 3D printed or CNC'ed, then assembled on site.

    Look at the photos. Here the portions where 3D printed on site.

    They're just trying to claim that nobody's ever done it at this level before.

    And, possibly, they're right.

    Yup, their claim to novelty is to directly have the machine built the house on site, instead of merely assembling pre-fab.
    (Like the couple of other 3d printed house project that got mentionned on /. over the last year).

    --
    "Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
  16. Phew! by grumling · · Score: 1

    That's has got to be one of the ugliest buildings I've ever seen. But "whimsical" architecture is all the rage right now. I guess I'm becoming an old fart, but this style seems like something that won't be remembered 50 years from now, except by other architects. Many of whom will pontificate about the wonderful daring steps these pioneers took, only to ignore it when it comes to their own commissions.

    --
    "Well, good luck finding a judge that doesn't run a bestiality site."
    1. Re:Phew! by b0bby · · Score: 1

      This is more a tech demonstration than anything. Those translucent walls filled with aerogel are pretty neat, and I could see them finding some specialized niche. The lightweight concrete ceiling slabs are pretty interesting too. I'm sure over the next few years architects will start using some of these technologies in more appealing designs.

    2. Re:Phew! by Whorhay · · Score: 1

      It doesn't really strike me as particularly ugly. That said it looks incredibly inefficient. I guess if it can actually generate more power than it needs even with such idiotic design choices that is a good thing. I wonder what could be accomplished with an efficient design.

    3. Re:Phew! by Thelasko · · Score: 1

      This is more a tech demonstration than anything. Those translucent walls filled with aerogel are pretty neat, and I could see them finding some specialized niche.

      I think the aerogel is the secret to the energy efficiency. It has incredibly low thermal conductivity, but it's also very expensive. Aerogel windows could be much more than a specialized niche if they were less expensive.

      From what I can tell, the robots just allowed them to make complex structures out of concrete that would be very difficult with traditional construction. While that concrete adds thermal mass, I don't see the robotics being a huge game changer in energy efficiency.

      --
      One of our competitors trademarked the term "hypothesis". From now on, we will call them "boneheaded ideas".
    4. Re:Phew! by b0bby · · Score: 1

      You're right, especially since it looks like the robots just made the metal mesh frame & the concrete was manually added to it.