Day 3 of Geothermal: Installation, Well Drilling and a Look at Equipment

Installing a geothermal system is a massive coordination. In addition to the homeowner (coordinated all of these people and negotiated pricing), the project has included: the Geothermal company (all equipment and specs, overseeing it all), the well driller (the well), the excavator (trenches and backfill), the plumber (piping and connections, domestic hot water tank), the HVAC installer (duct work, blowers and all related interior vents, EVRs, etc), the electrician (wiring it all up), the landscape architect (making the well look nice), the civil engineer (location) and the Green Rater (LEED).

Here’s a photo gallery of our project the past three days.

Here’s our slurry pit.Slurry Pit That’s clean water running out. We had to dig two pits, 15 feet deep by ten feet wide to collect any water overflow. It just figures but our well was pumping water faster than the ground wanted could absorb it.

 

 

 

Here’s the well rigRig.

 

 

 

 

 

 

 

 

 That’s Hazard Stewart, he owns Newport Geothermal. Hi Hazard!Hazard

 

 

 

 

 

 

 

 

 That’s me, Kim (the owner) lookingworried about the noise and disturbing her neighbors.Kim All went well though, not a single complaint. All that preparation paid off!

 

 

 

 

 

  

I admit, I was also worried about the term slurry pit.
Kim 2

 

 

 

 

 

 

 That’s the well. We dug to 1,000 feet in just two days.
Well Drilling

 

 

 

 

 

 

 

 

 Here is where we hit water. The well was “making” very little water at 300’, the same till about 800’, about 1.5 gpm. The well driller achieved 8-10 gpm at a 1000’. Basically, we have a very good well for geothermal; and very little bleeding of the well water to the drywells will be required. Furthermore, the added water that we found around 800’ will allow for some irrigation.Water

 

 

 

 

 

 

 

 

 That’s the water source heat pump being installed. The well pump will also go into the basment but that is next week. The connections and final trenching is scheduled for next week.
Water Source Heat Pump

 

 

 

 

 

 

 

 

The trench to the house will be dug on Friday and we’ll do another quick post showing the final connections. We also have our next blower test for LEED and ENERGY STAR on Thursday June 11th and we’ll make sure all the connections are tight. We’re going for a <.4 leakage rate.
That’s it. We have our system. Check out our Photo Gallery for more great shots of the Geothermal system being installed!

posted by KDL |follow me on Twitter: newscaster

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2 Responses

  1. Kim,

    a couple of questions for Kim:

    what was the per gallon oil price you used in your calculations?

    any thoughts on what your use of well water would do to groundwater levels if all your neighbors had a similar system?

    why do you have excess water coming from your wells? wouldn’t that be easy to control with a valve of some sort/pressure reducer?

    you apparantly opted for an “open loop” system as opposed to a recirculating system. Is that because you were concerned about the cooler return water eventually freezing the system?

    thanks for any help

    • Hi Konrad

      1. At the time, I think I used around $3.00 per gallon, considering I just paid $3.89 per gallon for my office building, I underestimated the value of my system.
      2. In my area it would probably have minimal impact because we have high water tables and a lot of ledge. It may help. Though we don’t have one, many of my neighbors suffer form wet basements.
      3. I don’t have excess water.
      4. I had no concern for freezing it was designed by the installer and it was what he recommended.

      Thanks, Kim

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