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“Nabovarme” opensource heating infrastructure in Christiania

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to and that was
and that it can be a kind of a and B the the but remember that our next talk never about open-source heating infrastructure interests China so I would like to know who of you has already been to Christiaan added to the free state income high all what that looks like maybe 60 per cent or something like that now I have a good or bad news for you depending on how you see a pattern if you need associate Christiania with read there will be no mention of region this talk whatsoever after my introduction cell phone down expectations that we will have a very interesting talk about neighborhoods something that's what never mean is I just today who their cell and I would like to introduce our speakers that they will introduce themselves in a moment to we have Henry differences and stuff and I would like to give them a 1 time so few OK thank you very much for coming here today and that is meant to us um I may emerge from before from and I will do the talking I was selected to do the talking about these 2 guys and a solver and you have as well and the questions of who is and I ask please as long questions because we think we have a little extra spare time thank you Saul and what is the name of honor that it's actually I think I mean it's a distributed essential all heating system organization thank and then remove it so will enable 1 is a word for community
heating on and we have several heating systems developed by the 14 local areas in Christiania on and learning at the basic
Christian heating has been pellets and for the last 5 or 10 years on pellets them and uh is being used the small things that you saw in the beginning I mean that you have in your head in their hands list go back to this
see the pellets and would be pellets that and we have but a lot of
uh common pellet heating systems is sigh through those other the red dots the large red dots and the small orange dots is local it features in just 1 family and we have low not small more it's more insistence that you have seen here but there we we didn't have time to put the main on the history
of features we tried to find some good pictures of the original Christiania I mean all oil Arab barrel stole but we could meet it's difficult they all gone they burned through back in the seventies and so all we have on these said and on the left a very common old stove from the eighties and then we have of course the oil heating system number 2 from left uh which is was common in the nineties it's still is common somewhere in Christiania then we have the Bekenstein Allman uh which is and the popular in Albany Denmark for words for logs and you see to the right a typical Christiania installation which and is just having at you going through the side of the building and then you know burning pellets inside and smoke outside not very modern not very efficient and a coming to its end so
what we have done is we have taken some very old meters and when we installed um um the those meters when we installed some surveillance and monitoring on a mean the pellet systems that we have now we're in the phase and combining the users that had these all he while he does the wood stoves the small pellet heaters into larger systems and that perform better and they sent a role for improvement is locking the heat users and finding ways of making everyone pay the necessary amount of and patent time Saul wearing the lighting system consists of these motor cal sector into the the army so that was the 1st live a very they were variable when we found them 2nd hand and they were then we have improved and with a switch modes power supply to the right and the the right picture and the and when a wife the they catch it in connection to making it into a smart meter I mean the billing and the heating on offer is done through our custom-made database so remote logging makes made men's much easier and can over time improve the efficiency of the heating system that can help the users being more interested in taking part of the eating consumption problems which is 1 of our times the main global warming issues you know I Hey the well how enable
Mama organizations are organized into the communities and in our most modern system every users used using our newly developed pre-paid consumption you know before people would go down and buy some logs would and then we go home and burn them the when the burning and that they were cold they felt the cool and they went back by more laws and heating it again so 1st you buy that you have the the the same model goes into all prepay consumption 1st you pay for the heat and then you consumed and then when you use over the mountains off that is a very simple model and it means that there is no deficit nowhere and that make the organizing receiving money in advance for heat and inserting the equivalent amount of energy into the system database when the users consume what is paid for the module automatically turns off the valve to the user um the thing
is that a Christiania was founded as on top of an old military base which is actually a coming back to 1680 this hole in the city of Copenhagen was defending itself against the Swedes the German and the English and that database was left in the 19 sixties and was just as you see on this old photo so in 2 thousand and 11 the Government of Denmark won a lawsuit against Christiania that means that the Freetown was forced to uh follow the regulations of Denmark at the same time Christine was layout legal and that resulted in and that the local people in Christiania wanted to improve their house standards much more than was used to before they do so they put in investments in our infrastructure and in our houses on a longer time horizon now we invest up to 30 years in advance and that's a whole different than before when it was just for 1 or 2 years people would clamber up something so the whole infrastructure is changing in these years to stand is
quite large it's the 46 years old and it has almost 1 thousand habitants actually the 900 that you see here are the have inhabitants that we know of but there are many people that just the there without having a place to stay that means that they change rooms they sleep on so 1st they kind of Rome around within the community so there may well be a thousand I don't know there are at least 265 houses and 24 hectares of land and so there is a
heating construction this variable easy kind of you burn palace that's it but when you extend this to larger systems um it's there can be quite complex the pellet burners are difficult to keep instead steady production but the cheap and can be handled by the local users special effort has been done to ensure that the heating system run a keeps running smoothly all the time by constant and Lee improving the heaters and the steering units that's the left and a picture you see that there are some yellow add-ons on top of Bob and those are uh added on 3 and exist heating system that we have board we have added air pressure to ensure that the ashes of blown away from the heaters surface at regular intervals and that you can see on the left picture on the blue tubes and we're planning to add to clean the flue gas that means you have when no edges and when the smoke them out the chimney you have a problem with the pollution and we want to take the pollution out of the gas and this is yet to come what were in the process of doing that as well where now engaged in improving the logging by the use of the capture of meters you see in the center top picture of the and use Razzberry pies as well to monitor the steering units that's the bottom picture that's Monitor that's coming out of the rest very high and we're fortunate to have several LANs running inside Christiania and then the those we can use for propagating the samples and monitor them that's the right picture here so you see all these said green points I actually Wi-Fi spots and a typical neighbor bomber installation consists of it by eating production center some heating consumers some Wi-Fi infrastructure and web portal use for plotting consumption and accounting the
reader well the back when we started off the comes structure Our solution meters and that he had were not very smart there were a they could actually in that they take it could take care of the meeting of consumers but we in the city lacked the ability to gather the samples for later accounting so the can from company had some solutions for smart metering which supports multiple protocols we had to violence bus the ZigBee uh many more protocols but there was no wifely or Wi-Fi that meant to us that investors investing in a new infrastructure for just metering was very costly and unnecessary all their saw their solutions require the new infrastructure for publication and data gathering and the need for certified electricians to install it the comes from solutions are also required a subscription plan in order to gain access to all data and we did not like that so when nowadays the many of
people in Christiania have their own Wi-Fi hotspots um Christianity users are willing to open there's to the heating meters and that is a way to reduce the cost of having to manually read the and it's a way to get through the Wi-Fi up to our service it when researching the
existing open source options from the comes from uh to create a middle longer we ran across the ESP 82 66 that's the microcontroller and when it 1st came out it was small and cost effective enough to be inserted into the majors and it had the Wi-Fi capabilities to transmit the samples over the 2 over the existing infrastructure that means all the Wi-Fi seduce or the green points later thanks to my fingers ESP library we were able to extend the coverage 2 places that lack their own hot spots that means that we could have been that our me solution could be like an extra hot spot and transmit all the data a through some of the features to the next hot spots in on so the service the and we have created a daughterboard I
yeah to be inserted into in the comfortable meters consisting of the years 82 266 with its flash and Wi-Fi capabilities some try triacs for controlling the external balance as you know the about that can turn off and on for the consumers and as several power supply unit to power everything and this and picture but you see here this is put into the living space of the people that are attached to the neighbor system so everyone has 1 like this uh mean we we would we have had a problem because can had an open their open source protocols impede but it was very difficult to read it and to read about it it didn't kind of workout and we had to spend a few months to reverse engineer a range of their devices and there now supported in Alameda log of firmware and in the middle of the firmware take care of the NAT
translations for extending the Wi-Fi and through a grace period during you're able to set up a target access point to connect so so and that means that the when you 1st set it up you find the Wi-Fi spots around and you find the best 1 and you lock it into that 1 if you later need to change that you pass along your telephone with special code and then you can change that point again mn and that's a grace period that's just a minute or 2 that's that's it so after that grace period goes over to sample mode and then the schedule asks the meter for sample every minute and the KMP that comes from the KMP requests talks to the media over serial and the KMP receive receives the data and does checksum before all floating it to the n t so and the again QTT dispatcher takes care of transmitting the sample so the sum of all and in other parts of the framework closes the hot water well if the last sample results in excessive consumption based on the readings from the users users accounts so this is how we can actually turn off the user or actually the the the thing does it automatically if there is no more money on that account in automatic switches off like would you go down and by the law of and put it into year existing old a heater it burns down it's called same system and that transparency makes it easy for people to understand some of the well that's at the front well from
the client side you have the overview of a client and this is what the client sees of the production on the use of the neighbor bound we have the uh the propagation temperature and then you have the return temperature you have the temperature difference and you have the flow and you have consumption and the these 5 and graphs you can see zoom in and just have of 1 or 2 minutes or you can have it for Bureau like you have from here 1st of January to the 5th of march but you can also have a for 2 years 3 years or just 1 minute 2 minutes so this is a very easy for people to see how is there a usage how out when and how much do they actually spend and of
now the accounting system and that's 1 of the headaches for everybody how to get the money and we want to supply we want to share but we need some money for the pellets powder duet are fast and 1st of because you would just put it on and I on a document on your computer my neighbor has given me 5 crowns or we as we choose in Denmark or 10 euros this for the for the heating of the pellet from that data that they follow OK and when you have a lot of documents it makes it very difficult of course so you start with using Excel's breaks spreadsheets all opening a you know woven docs of spreadsheets or whatever you know and in due time you find out that's complex to it makes it difficult for us so 1 now then it and some good guys start making um custom-made applications and this is the 1 of them and this is actually the latest um application called the CA means Christiania football mindset expenditure so weird about we have developed that over time and this is for electricity and this is the red 1 you see and that means that it's electricity expenditure and there is every year 1 the usually the consumer but also maybe the area cashier goes from house to house takes that number and puts it into this an uh accounting system so you see there some of them are from 2006 some of from 2 thousand 3 1 of 15 and choose from 2017 and this is the expenditure of electricity and we want of course to do that but also for heating therefore he and this may be possible but we need some more people to help us doing that but so when uh all this require of course individual consumption total consumption and production expenses to make this all works and that is increasingly difficult to handle and on top of that uses are more demanding they want to know how much do we have in our little bank or how much do I all the little bang or how can we actually balance things up in these data of course very precious to us and we do not want to share them with large companies for and surveillance reasons and this is why would build up this whole infrastructure to keep the knowledge inside and gain a total axis of it but it's a lot of work at so there's the last thing is that we
hate your account we would love to guess if you get some more help on how to how to improve things in our systems and how to cooperate with the making the systems talk together and then we have on the on the left side of the stage we have staffer here is all about factor you know if somebody from Boston runs down the knowledge is gone what can we do that we need some more people knowing what is going on that our society is so small that we do not know what to do a fair 1 person this disappears and a lot of knowledge disappears with within so this is a serious problem for us and then along as well as the demand for the people that we are observing they want to know more and more specific details on on the consumption of the production of the energy the economy it's very difficult on top of all these things we have so I installed a lot of solar panels thinks I Christiania to stop using too much of the electricity that we buy and getting down on buying the pellets so that all these uh different consumption models and they coincide and they need to be balanced out and we need to monitor and to see how much do we actually gain how much do we use so please if you have problems all you have questions we have the problems that and then and you can apply if you want to come work with us at the Christiana researcher in residence that is a house so we have interest in ya designed for people that want to know about Christian are going to read all do something select active sessions interest in thinking come and stay with us for a month or come back even and then they would get some interaction with Christiania so thank you for your time and I hope you have a lot of questions that we will be a class to answer but you have
to think about the resignation every cell and varied have around 5 minutes of questions and many you have heard they are in dire need of ideas inspirations support and help and all lined up at the microphones if you have questions I would start with the Internet and there is a question from the internet is that the case yeah the questions it online and we start started microphone number 6 these you can that I have in the greater I think is really parts or the distribution of pellets to be more efficient with not just like the heating how the actual physical distribution of colors work really automation ideas around right of we don't have any sound I I think we lack some sound honest offer and on Johannes here just after the they could use the beach Costello this approach like thing is that it's not it's just me out this yeah so as not to ask the question again the question was to be used in the operation of the distribution of the silos at each of years so we can just get from the company and with the pressure there is no sort of these kinds of usually of these productions of wouldn't have redundant reading gotten units so if 1 of them which of them but when it comes to distribution of of cost than it is still a small isolated communities that consumed a there on the system so they're part of 1 small community doesn't go into the bottom of the community and hope that was trained with amendment underwent I think I got out from the book and I was wondering if if like usually you say 1st you isolation on civilians and then you use the existence of the do that because I like from photos it seems like there's a lot of old links and stuff so that you might recite it lost its energy consumption and then with the new system on I have to thank you for your thank you have your you questions looks like this in here and 1st you should insulate your buildings and then you could add the heating system instead of the other way round is that is that your question I was just wondering if you like just said OK we have a new heating system has or we 1st try to lower the consumption and then look for a new system that the you know the outcome that the thing is that once you have what your poor people 1st what he survive and then the question would you survive you are you you suddenly find other ways that are smarter than the ones you follow before so you find the house you stay there and you heat it you don't find the house insulated and start heating known as the other way around and this makes sense to extend into many the case so that we have a number of very very old houses and there some of them are heritage restricted and some of them are just in very bad shape and many squatters have been living there before us and they have not contributed to the betterment of the houses right now is in a new situation as we are looking into eternity mean we're staying here when not were not being forced out by the police or any of soul and we think longer terms we say maybe people lived for 5 years here but they should contribute to the rules that last 30 years and they should contribute to the insulation that we need to have a better house in all 30 years and this is a plan that takes time and effort and also needs to be propagated into the mind set of people in Christiania and not the same so 1st you deliver pellets you give them he you find out how to avoid the pellets and you give them toward the heat in this is the way it has been on anything I think I think you have a you have an extra presence but this effect fact that it maybe maybe you can just find that of people still have questions don't have time for all the questions and you can just talk to that for now I think it said the and time to ask the question because they cannot find you afterwards of yes the internet has some questions on the 1st question is would be possible to have some 180 interest you and help you with your project the yes this would be would be part of the variables so you join us you can apply for this whereas the rest of here's your by our standards they don't want to just the cost of doing and so we have a very low level of government faces so where a lot of you have been reading needs of given what will go from John of the reduce the buffer so you think about the remarriage of waiting for thought so parameter of interconnected nodes of the extension of very kind invitation to all of you to come and join them and work with them we have to close the talk I saw you all keep that microphones 1 2 and 8 and unfortunately we don't have any more time but just come and find this the 1st half of the talk and discuss with them on the open questions you still have some please even on a warm round of of lasting hands and that I was to what's on you
if you missed the mind but it would not be completely and it to the
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Metadaten

Formale Metadaten

Titel “Nabovarme” opensource heating infrastructure in Christiania
Untertitel Freetown Christiania´s digitally controlled/surveyed heating system. 350 users
Serientitel 34th Chaos Communication Congress
Autor Valbjorn, Johannes
Emmerik
Lizenz CC-Namensnennung 4.0 International:
Sie dürfen das Werk bzw. den Inhalt zu jedem legalen Zweck nutzen, verändern und in unveränderter oder veränderter Form vervielfältigen, verbreiten und öffentlich zugänglich machen, sofern Sie den Namen des Autors/Rechteinhabers in der von ihm festgelegten Weise nennen.
DOI 10.5446/34831
Herausgeber Chaos Computer Club e.V.
Erscheinungsjahr 2017
Sprache Englisch

Inhaltliche Metadaten

Fachgebiet Informatik
Abstract Project “Nabovarme” (meaning “neighbour heating”) has transformed private heating necessity into a social experiment build on OpenSource software/hardware and social empowerment by transforming heat consumers into Nabovarme Users and letting them take ownership to infrastructure and consumption.
Schlagwörter Hardware & Making

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