Heat Pumps: How cold rivers could heat your home

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Published 2024-02-02
Heating our homes with cold water! Sounds absurd? It’s not. Heat pumps are revolutionizing the way we heat and cool our homes and cities. We went to the German city of Mannheim to find out how.

#planeta #heatpumps #energy

We're destroying our environment at an alarming rate. But it doesn't need to be this way. Our new channel Planet A explores the shift towards an eco-friendly world — and challenges our ideas about what dealing with climate change means. We look at the big and the small: What we can do and how the system needs to change. Every Friday we'll take a truly global look at how to get us out of this mess.

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Credits:
Reporter: Tim Schauenberg
Camera: Simon Baingo
Editor: Frederik Willmann
Superivising Editors: Joanna Gottschalk, Michael Trobridge

Read more:
IEA: The future of heat pump globally:
iea.blob.core.windows.net/assets/4713780d-c0ae-468…

Heat pumps potential in Germany:
static.agora-energiewende.de/fileadmin/Projekte/20…

Fraunhofer IEG: On large scale heat pumps in Germany:
www.ieg.fraunhofer.de/content/dam/ieg/deutsch/doku…

Chapters:
00:00 Introduction
00:43 What's the problem?
01:04 What my ice bath has to do with heating
01:37 Heat from the river
02:08 This is how it works
04:32 It all started with a fridge
05:40 Substituting coal, oil and gas?
06:30 Environmental risks
08:46 Smaller units and the money question
10:32 Conclusion

All Comments (21)
  • @DWPlanetA
    Are heat pumps popular where you live? Note: At minute 1:14 it should be +30F, not -30F. Sorry for the confusion✨
  • @jimwilson5139
    Just decarbonized the house last October, no longer burning fossil in the house. Enjoying a Daikin heat pump. Neighbours visiting the house and asking many questions. My candid statement is if we can afford one, just do it, it is the minimum we can do for our children and grandchildren.
  • @samuxan
    as summers get hotter having a piece of tech that can work for either cooling or heating is quite appealing
  • @foofighter141
    I have a mini split heat pump and love it! Heads up, -1C is not -30F 😂
  • @josipmatic4732
    Important note is to have good insulation on building before instalation of Heat Pump. My 2023 Air condition has label as "heat pump". Working 20h a day, avarage outside is 8C and I pay for whole electricity bill 60€. Heat pump also on cloth dryer :)
  • @matejorsag6515
    I built a new house with an air source heat pump, well insulated, triple glass windows, everything electric. My electricity consumption is low (>5MWh/year) and cheap, but all of this was not cheap to built, while some of my neighbours still burn lignite or wet wood for heating, which is cheap for them but enough to destroy breathable air for an entire village. They also have parallely installed gas boilers as well, but they want to save some money by rather burning smelly polluting stuff instead of using a bit more expensive natural gas. I am wondering how much money they save by this. I suppose it is not much and it is the cost for clean air in my neighborhood. We live in Czechia, common people are not that wealthy as people from Western Germany. But I must admit that almost all new houses built here in recent years have air source heat pump as their main heating source👍
  • @TimLongson
    Fantastic video! Having researched this myself I can say the best heat pumps are VERTICAL ground source heat pumps; you have a few bore holes drilled down in you garden, only a few CM wide (so even tiny gardens are enough) and HUNDREDS of meters deep. The temp underground is consistent all year round, so unlike air pumps which ironically become less efficient when they are needed the most on the coldest days (they are less efficient than a normal electric heater if the air drops to around -15C), vertical ground pumps aren't affected by air temperature so are far more efficient. Also, air source heat pumps can be very noisy because of fans, where vertical ground source run silently. Ironically, even though vertical ground source heat pumps take considerably less work and land digging than horizontal ground source heat pumps, the lack of installers with the drilling equipment allows them unethically to charge very high prices for the simple & easy job of drilling the deep bore holes, and they know people will pay more as these are the most efficient type. The more installers that get these drills, the greater the competition and the lower the prices will go.
  • @joels7605
    I did this with a private lake on my property. Cheap, green, high quality heat year round for my house. It is glorious.
  • @LV2355
    01:15 when a minus added incorrectly could change everything: -30°F = -34°C. It's not that cold. But Fahrenheit people might belive you. The correct conversion is -1°C = 30°F
  • @vincentgrinn2665
    river source heat pumps are alright, but i think the ideal way is cold district heating that way you can connect your industry to the same network as houses and use the heat generated by it to warm houses
  • @MegaSoarer
    Industrial scale heat pumps can easily use CO2 gas as refrigerant- GWP is 1. I can not imagine what kind of potential risks of cooling river water by 0,001 oC in far far future the scientist is talking about. Where I live rivers freeze-up every winter, no problems whatsoever. I have installed ground-source heat pump, the house is not very well insulated, but I have opted for underfloor heating on the first floor, and installed oversized radiators on the second- heat pumps work more efficient at low thermal water temperatures. I'm also very happy with summer time cooling from the ground loop- all it takes is just around 50 watts (!) for circulation pump and fancoil fan to keep interior air temperature below 24 oC and r.humidity below 50%.
  • @EcceJack
    In my corner of the UK, they've only recently started installing gas pipes and gas boilers etc. by default 🤦🏻 it used to be all oil heating. Basically no heat pumps. Also insulation of houses in the UK is absolutely abysmal. Most windows have double glazing by now, but wall insulation is horrible. And no ones ever heard of triple glazing. So.... we're lagging behind quite a lot, which is really annoying (read: expensive) if you want to have those things work for you.
  • @01ai01
    Might be good to look for upstream partners that have processes making waste heat that they can sink into the river. Basically use the river to transport waste heat to the heat pump.
  • @paulingvar
    Welcome to the club Mannheim! We have done so since beginning of the 80s in Sweden :)
  • @snoopaka
    Terrific commitment on your part. Terrific job and well explained.
  • @paytonturner1421
    I think on the topic of cooling your homes in the summer the refrigerants need to be replaced with greener versions that don't ruin the environment like ammonia. Also, I think the cost effective way of introducing something new for heating our homes is to integrate it into existing infrastructure to drive down costs.
  • @Koby616
    Thanks for the video, I loved it 😊