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District or Utility Scale Geothermal

sellears
sellears Member Posts: 3
I am looking at the possibility of putting in utility scale geothermal for a new development of about 250 "homes" in our community. I am the Dir. of Public Works and so will be coordinating all utility planning/design/install for this development. Looking for examples of similar-scale projects in the ground throughout the US or abroad and also looking for consultants with experience in planning and vetting the concept. Located in Southern Wisconsin. Thanks.

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 17,007
    Get in contact with Carleton College, Northfield, Minnesota. They have recently installed and commissioned a complete geothermal heat pump system for the entire campus, replacing a steam/hot water system.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Erin Holohan Haskell
    Erin Holohan Haskell Member, Moderator, Administrator Posts: 1,692
    @sellears, I recommend you contact geothermal expert Jay Egg (https://egggeo.com/).

    And here's a residential community in Austin, Texas that's on a GeoGrid: https://www.whispervalleyaustin.com/ecosmart/
    President
    HeatingHelp.com
  • jumper
    jumper Member Posts: 1,709
    I think HongKong distributes sea water.
  • Jamie Hall
    Jamie Hall Member Posts: 17,007
    Folks, he's talking Wisconsin... not Texas or Hong Kong. A very different problem.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    Zman
  • jumper
    jumper Member Posts: 1,709

    Folks, he's talking Wisconsin... not Texas or Hong Kong. A very different problem.

    If you can distribute enough ground water; if the system does not end up with too cold or too warm water during lifetime of system; then what's so problematic about Wisconsin?

    My guess is that OP will learn how economic his idea is.
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 10,209
    Big project. The cost of the underground will be big $$$$$
  • Jamie Hall
    Jamie Hall Member Posts: 17,007
    jumper said:

    Folks, he's talking Wisconsin... not Texas or Hong Kong. A very different problem.

    If you can distribute enough ground water; if the system does not end up with too cold or too warm water durin @Eg lifetime of system; then what's so problematic about Wisconsin?

    My guess is that OP will learn how economic his idea is.
    Purely a matter of getting enough capacity in the cold weather. The system I mentioned has several hundred wells, all over the campus. As @EBEBRATT-Ed said. big dollars. I believe I'm correct in saying that an alum with even bigger dollars (the college has a few) was involved.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 10,209
    We did a geo job about 10 yeas ago and as far as I know i still is working well. But this was a restaurant probably had about 30 tons of cooling and heating. The groundwater loop took a lot of space
  • retiredguy
    retiredguy Member Posts: 485
    Before I retired I started two (2) H B Smith boiler which were part of a newly installed geo-thermal heating system. at the Laurel valley Elementary School in Ligonier, Pa. You could call them for answers as to how the system performed. The Engineering firm that designed that system and many others was The H F Lenz Company with offices in Johnstown, Pa; Conneaut, Ohio; and Pittsburgh, pa. They may be able to help you with the planning or recommend someone in your area that could provide the information or help that you desire.
  • jumper
    jumper Member Posts: 1,709
    Two kinds of geothermal. Loop transferring heat with ground. Or pumping water from lake or well to return somewhere elsewhere. I presume OP is talking about latter?
  • Jamie Hall
    Jamie Hall Member Posts: 17,007
    The one which I mentioned in Northfield, MN is loops in deep wells, transferring heat from the ground. It is a closed loop system, yes, but unlike some closed loop systems with a grid of pipes at some relatively shallow depths, this is the type with the loops in grouted deep wells.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • hot_rod
    hot_rod Member Posts: 15,003
    edited September 29
    Districtenergy.org is the trade association. Some projects in Canada also. Here is a map of systems from that site
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • jumper
    jumper Member Posts: 1,709

    The one which I mentioned in Northfield, MN is loops in deep wells, transferring heat from the ground. It is a closed loop system, yes, but unlike some closed loop systems with a grid of pipes at some relatively shallow depths, this is the type with the loops in grouted deep wells.

    Why not have individual well for each home?

  • Jamie Hall
    Jamie Hall Member Posts: 17,007
    jumper said:

    The one which I mentioned in Northfield, MN is loops in deep wells, transferring heat from the ground. It is a closed loop system, yes, but unlike some closed loop systems with a grid of pipes at some relatively shallow depths, this is the type with the loops in grouted deep wells.

    Why not have individual well for each home?

    Eh? It's a college campus -- not individual homes. You have all the academic buildings as well as ... I think 10 dormitories. 1300 students in residence. More or less.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • psb75
    psb75 Member Posts: 461
    Jamie, jumper is referencing the original poster's application of "geo" for a 250-home development.
  • Jamie Hall
    Jamie Hall Member Posts: 17,007
    edited September 29
    Sorry. I had sort of assumed that @sellears , the OP, was interested in a district system for the development and that he or she had very good reasons for that preference...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England