Welcome to the Yale Acres Project Update Blog

building demo

Yale Acres is a housing development owned by the Meriden Housing Authority in Meriden CT. These facilities are going to be renovated to provide a more comfortable, modern living situation for low to middle income families in Meriden. Updating the facilities using renewable energy sources and green technology will save money for both residents of Yale Acres and the MHA. AEG Group has been contracted to manage the renewable energy planning and installations. Yale acres will be outfitted with solar photovoltaic for electricity, solar thermal for hot water, and geothermal for HVAC. The goal is to bring Yale Acres as close to a Net Zero scenario as possible. Net zero means combining renewable energy sources so a a building can completely eliminate the cost of energy- and have a $0.00 energy bill.

On this site, you will be able to follow updates from the project, learn about the technologies involved, and get introduced to the companies doing all the work.

In this picture, you can see the model building, which will be the first building to receive installations of Solar, Solar thermal, and geothermal. It has been gutted for renovations, and the project is underway!

2 responses to “Welcome to the Yale Acres Project Update Blog

  1. How’z going to date?

    I can only find less than 50 btuh/ft vertival borehole , 24/7 operation in three to four coldest weeks of a winter heating loading on loops…

    In other words, with a 5 ton compressor in the typical “rated 6 ton unit”
    which absorbs over 48,000 btuh running a few days straight in a seven ton house load (like a 4000+ sqft over basement; NEOhio, average)
    I have to use 1000 ft of vertical borehole (like 6x 166ft or 5x 200ft) totally keeping the loop performance guaranteed over 34 degrees F with 14 to 15 GPM entering the unit on that size system…

    how did you get more btuh out of a cubic foot of standard damp gravel and sand and clay borehole?


    GEOPROS.org GT since 1980, tracked over 1700 systems

    • Several things going on:
      GEX4 has a greater diameter intersecting with the Earth. To put it in a simple vein, think of having a 6” bore with at least five u-bends installed. Additionally, cross talk (thermal pollution) from input to output is pretty severe with conventional u-bend. That adds up to a substantial loss in performance. The GEX4 was specifically designed to reduce that loss. There is more, such as the GEX being designed to press input fluid to the bottom of bore at higher velocity than the building supply side, which gives a much more efficient thermal transfer.

      Ground temp is not close to the fluid temp you are getting back. That’s a good sign the heat exchanger is underperforming.

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