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Power EU

Berlin Builds a Giant Thermos to Help Heat Homes This Winter (apnews.com) 127

The Associated Press reports on a massive new 150-foot (45-meter) tower going up in Berlin — just to hold 56 million liters (14.8 million gallons) of hot water that "will help heat Berlin homes this winter even if Russian gas supplies dry up..."

"[T]he new facility unveiled Thursday at Vattenfall's Reuter power station will hold water brought to almost boiling temperature using electricity from solar and wind power plants across Germany. During periods when renewable energy exceeds demand the facility effectively acts as a giant battery, though instead of storing electricity it stores heat..." "It's a huge thermos that helps us to store the heat when we don't need it," said Tanja Wielgoss, who heads the Sweden-based company's heat unit in Germany. "And then we can release it when we need to use it.... Sometimes you have an abundance of electricity in the grids that you cannot use anymore, and then you need to turn off the wind turbines," said Wielgoss. "Where we are standing we can take in this electricity."

The 50-million-euro ($52 million) facility will have a thermal capacity of 200 Megawatts — enough to meet much of Berlin's hot water needs during the summer and about 10% of what it requires in the winter. The vast, insulated tank can keep water hot for up to 13 hours, helping bridge short periods when there's little wind or sun....

Berlin's top climate official, Bettina Jarasch, said the faster such heat storage systems are built, the better. "Due to its geographic location the Berlin region is even more dependent on Russian fossil fuels than other parts of Germany," she told The Associated Press. "That's why we're really in a hurry here."

"While it will be Europe's biggest heat storage facility when it's completed at the end of this year, an even bigger one is already being planned in the Netherlands."
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Berlin Builds a Giant Thermos to Help Heat Homes This Winter

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  • by DarnOregonian ( 10088276 ) on Sunday July 03, 2022 @08:45PM (#62670902)
    My German girlfriend said that's just a cute story they tell the Americans. In reality, East Berlin has an inexhaustable source of fuel from Moscow, and the Russians ordered this to be built to hold vodka in the winter and East German beer in the winter, thereby winning the Guiness record for the largest multi-product outdoor alcoholic beverage storage tower in the world.

    Mark my words.
    • Nice try, but... the Germans drink schnapps, not vodka.

      • Germans drink Vodka.
        Why would we not?

        We even have our own variations, that are called "Korn" (from corn, as many Vodkas are made from grains)

        • I'm sure there's a few Scotsmen that drink vodka, too, but I'm not expecting to see a 45-meter vodka storage tower in the middle of Glasgow anytime soon.

  • It can be quickly adapted to hold hot soup!

  • by illogicalpremise ( 1720634 ) on Sunday July 03, 2022 @10:21PM (#62670980)

    Is it just me or did both the summary and article entirely skip over the explanation of how this hot water is going to be used/consumed?

    "The 50-million-euro ($52 million) facility will have a thermal capacity of 200 Megawatts — enough to meet much of Berlin’s hot water needs during the summer and about 10% of what it requires in the winter. The vast, insulated tank can keep water hot for up to 13 hours, helping bridge short periods when there’s little wind or sun."

    So does Germany have a hot water pipe running to every house? Will it be re-heated to steam to run generators? Basically how does heat get from the tank to solve Berlins heating / hot water requirements? Will people just stand around the giant tank like in Frostpunk?

    "Wielgoss said she was confident that Vattenfall’s customers won’t go cold this winter"

    Who or what are "Vattenfall’s customers" and how exactly do they benefit? It's just so vague.

    • by Richard_at_work ( 517087 ) on Sunday July 03, 2022 @10:36PM (#62670996)

      Yes, a lot of Berlin has centrally heated piped heating, or they did when I lived there.

    • by Fly Swatter ( 30498 ) on Sunday July 03, 2022 @10:36PM (#62670998) Homepage
      They use something called District Heating [wikipedia.org].
    • by tgeek ( 941867 )
      While not exactly Berlin, I live in Bucharest Romania and centrally supplied hot water for both heating and regular use is very common. Almost all large, older apartment buildings use this. It sucks. BIG TIME! If you happen to be an early riser and are the first person awake in your apartment building, you may have to run your hot water 5-10 minutes before the water is actually warm. All the while your hot water meter is running. And don't even get me started about the random 3 day "maintenance" outages
      • That's an implementation issue. I live in NL and had a centralized hot water pipe ("city heating") since 2003. I've had 2 outages since then (that I know of), all fixed within the hour. I also pay less for it than the equivalent amount of gas, at the moment, because it's more efficient.

        The difference is of course how you set it up and organise it.

      • by Misagon ( 1135 )

        I don't know about Bucharest specifically, but in general, district heating and the water-system are two different systems.
        That is because you will always need hot tap-water, but you will not need to heat the house in the summer.

        The fresh water-supply carries only cold water -- which gets heated before it reaches the tap.
        The district heating system's water is not suitable for drinking or washing. Even if other water is used through a heat-exchanger, that heated water is separate from drinking water.

    • Exactly. Many European towns and cities have a central heating system. This is a great way to use low-grade thermal energy from industrial processes, power plants, etc.. - instead of just heating the local river.

      If you have an excess of electricity at certain point in the day, why not?

      I just wish tech journalism had better standards, or *any* standards. Screwing up the units. Implying that a massive tank of hot water will get cold in 13 hours. The journalist is...underqualified.

      • Yeah, the 13h make no sense at all.
        It is probably 130h.

        On the other hand: it obviously depends on actually usage. If enough households are connected, and the thing is heated during daytime with excess power, and depleted over night, then 13h might be just the night time.

        But there is no way such a thing cools down to an unusable temperature in 13h if no heat is extracted.

    • by fermion ( 181285 )
      Just as a data point, my downtown has this heating capability. It seldom freezes, but I know people who live in apartments that use the central hot water heating.
    • Who or what are "Vattenfallâ(TM)s customers" and how exactly do they benefit? It's just so vague.
      That are house holds who have a contract with the Company Vattenfall.

      That was easy, or?

      Regarding the other question: the water is most likely only used for heating, and yes: many houses are connected to something we call Fernheizung in German (district heating).

    • So does Germany have a hot water pipe running to every house?

      Yes. Vattenfall Reuter West Powerplant is a CHP plant, which stands for "Combined Heat and Power". This powerplant is connected to the largest district heating network in the world, and as it is provides 878 MW of thermal energy (enough to heat about 60,000 homes in winter directly).

      They need to do something because they are a coal power plant and as part of the coal phase out Berlin would not only lose access to electricity but to district heating if this plant shut down.

      It's not the only source of distric

  • What would be the effects of 14.8 million gallons of boiling water leaking out of that thing?

    • Don't worry, they've surrounded it with a moat filled with crab and lobster.

      • by bn-7bc ( 909819 )
        That would make no sense, because before any significant leak the moat would be a dry ditch, if it was filled wit water from the start it would e a pretty poor leakage containment system. Oh you wher joking, in effect calling this whole scheme silly, i get it.
    • If it all spills at once: 200 Megawatts all over town. Maybe they'll build a moat around it and direct the overflow somewhere safe?
    • What would be the effects of 14.8 million gallons of boiling water leaking out of that thing?

      Far less than the effects of the equivalent tank for a major hazard facility storing petrochemicals, the kind of which exists in practically any reasonably sized city (and many small towns).

      Germany isn't new to this. Basically no countries are.

    • "What would be the effects of 14.8 million gallons of boiling water leaking out of that thing?"

      Clean streets and no weeds for weeks.

  • by wakeboarder ( 2695839 ) on Sunday July 03, 2022 @11:09PM (#62671030)

    For the rest of Europe, not just Berlin

    • by sd4f ( 1891894 )

      The situation isn't that bad for the rest of europe, it's chiefly Germany which will be struggling because of the lack of diversification in their fuel sources for energy, while doing something about diversifying their energy supply is going to take a few years at minimum.

      The issue with the energy crisis is that for a heavily industrialised country like Germany, cheap energy plays a huge role in their competitiveness and that in turn keeps them exporting. This will all change for them now, and it's not look

      • The situation isn't that bad for the rest of europe, it's chiefly Germany which will be struggling because of the lack of diversification in their fuel sources for energy
        No, it is all of Europe.
        As most of the Gas Europe consumes came from Russia.

        Or do you have the silly believe that France's gas usage is fulfilled out of thin air? Or Netherlands?

        That hasn't worked out very well for them, it just demonstrates one rule for the inner circle of the EU, and different rules for the rabble.
        Sorry that is simply fal

        • by sd4f ( 1891894 )

          You seem to be on a real mission trying to absolve Germany of any and all indiscretions it has had that has dragged Europe into this mess. I think the question of being an idiot or a slashdot troll is more pertinently asked of yourself.

          Funny you mention France and Netherlands, for those two countries, Russia isn't the largest supplier of gas.

          Netherland's energy trade [europa.eu] France's energy trade [europa.eu]

          Come on, this data is a google search away, or are you just trying to create a false narrative? To share blame square

      • Except at any time Russia could cut Europe off, they will probably wait until the coldest season

        • by sd4f ( 1891894 )

          This is nothing new. Decades ago, Putin had already weaponised gas by threatening to cut it off in order to get what he wanted at the time. The big problem was if he did actually do that, countries further down the line would also be cut off. This is why the whole Nord-Stream is such a hot topic, and there has been a lot of criticism for years, on the part of Germany, helping Russia create a situation where Russia can threaten countries with shutting off gas, until it gets its way.

          Also, worth considering, g

  • So it will provide all of Berlin's summer hot water needs but only 10% of its winter needs? Not that useful: Germany needs Russian gas to stay warm during winter, not summer. And in winter, where is the surplus energy coming from to heat it in the first place?
    Maybe you could scale it up 10x, but then 90% of its capacity would be wasted in summer.

    • Another stupid /. comment of German hater?

      This thing heats houses that are already connected to district heating/Fernwaerme. Those houses HAVE NO RUSSIAN DEPENDENT GAS HEATING - dumbass.

      And in case you have not grasped it yet: we are at War with Russia. Next winter there will be no gas from Russia coming to Germany. No idea why people who can type on the internet are so damn stupid and uninformed.

    • Not that useful

      You're right, why did they even bother. Unless a single project can do 100% of anything it is "not that useful". Idiots the lot of them. Why don't they listen to Slashdotters who know how to solve world problems!

      And in winter, where is the surplus energy coming from to heat it in the first place?

      I could tell you, it has an answer that has nothing to do with Russian gas and everything to do with the power plant its being built at. But honestly I don't think you're worth it. Google it.

    • If you read the article you will see that it's being built on the site of an existing power station. A conventional generator starts by making steam from heating water. If the water is hot already it means less fuel needs to be burned to generate that steam, if that is normally generated by gas, you will burn a lot less gas.

      The other thing that you need to look at is the daily cycle of power usage. At night its around half that of the peak, this tends to coincide with higher wind levels in general. Wind

  • Kinda funny since here in Sweden we have heard nothing about that, we're just "enjoying" 700% increased electricity costs, 10$ a gallon for gasoline.

    Nice to know we're not investable enough to fix the heating issues of our own so our companies have to do it for other countries instead.

    • Maybe it can be done in Copenhagen, but do you have district heating/ city heating in place? Building the plant is less of a problem than running hot water pipes all over the city.

      • Not much harder than running fiber.

        IMO instead of government trying to get everyone to buy air to x heatpumps, they should provide district heating and cooling with distributed large scale geothermal heatpumps. At least it will still work well in extreme cold conditions.

        • by drhamad ( 868567 )
          Way, way harder than running fiber. Are you kidding? Fiber is a little string of stuff, not large-scale piping.
          • Microtrenching is the exception for laying the curb side fiber in my country, they tend to have a normal trench wide enough to stand in. Which is wide enough to lay distribution pipes for say 100-200 homes. That's how I envision the ground source heat pumps to be build, for a couple 100 homes, same as medium voltage to mains voltage conversion stations here. Gotta dig below the frost line, but as long as the soil can support a trench with mostly vertical walls and you don't actually need to physically stand

    • Nice to know we're not investable enough

      Do you personally connect to a district heating system already that could benefit with a large tank that can be charged with surplus green energy at the risk of the coal fired station which provides your existing heat shutting down?

      If you answered no to this *very* specific question, then you're right, it makes not sense to build this for you.

      Build a large district heating plant, connect all your houses to it, ensure that it is coal fired and that your local government issues a decree for it to shut down, a

  • to build in underground to preserve the heat. Even if it deep enough it can heat by itself using the mantle heat. In nordic countries, some cities are heated using old mines filed with water that heat by itself.

  • Vattenfall owns about 10 nuclear plants, IIRC. I think it's appropriate to point out that they commissioned a paper that was once used to inform the IPCC on energy policy related to validating nuclear power as a CO2 mitigation strategy.

    That paper could no be certified, due to errors and overly optimistic assumptions that led to the basis of arguments that nuclear is a solution to climate change. Including claims on the Energy Return On Energy Invested (EROEI) and a false reputation that nuclear power is CO2 free.

    The Vattenfall paper is no longer available so I cannot provide a link anymore. The only authoritative peer reviewed work is Nuclear power the energy balance [stormsmith.nl] which is used by European Parliament to guide energy policy.

    I think it's good to see Vattenfall has changed their perspective and are building something like this heated by solar and wind instead of nuclear.

  • by Opportunist ( 166417 ) on Monday July 04, 2022 @08:22AM (#62671990)

    Just connect the Bundestag to the heating system of Berlin. The hot air produced in there can easily heat the capital.

  • This article [vattenfall.com] from the company itself has some more well defined numbers:

    At maximum output of 200 Megawatt thermal, the storage facility can provide heat for about 13 hours.

    So the power is 200MW, and the capacity is 2600kWh.

  • "thermal capacity of 200 Megawatts "

    What? Maybe that's how much power it can supply, but thermal capacity is not defined in power units. Maybe they mean energy storage capacity, and maybe they mean 200 MWh?

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