GEOptimize
  • HOME
  • About
  • Training
    • CGD Courses Online
    • CGD Courses in your Office
    • CGD at IGSHPA
    • Register
  • Services
    • Feasibility
    • Residential
    • Geo Forensics
    • Peer Review
    • Design Assistance
    • GCHP & GHX design
    • Manage your GHX
  • Products
    • Ground Loop Design >
      • GLD quote
    • GeoCube
  • Projects
    • Agriculture
    • Commercial >
      • Steinbach Credit Union
      • Walkerton CWC
      • 2211 West 4th
    • District Systems >
      • Gibsons, BC
      • Seasons of Tuxedo
      • Miami, MB
    • Institutional >
      • Prairie Dale School
      • St. Pierre Church
      • College Universitaire St. Boniface
    • Multi-family Residential >
      • Bethany Manor
      • YWCA Elm Centre
    • Recreational >
      • Port Hawkesbury Civic Centre
    • Retail >
      • Neechi Commons
      • IKEA, Centennial, CO
  • Blog
  • HOME
  • About
  • Training
    • CGD Courses Online
    • CGD Courses in your Office
    • CGD at IGSHPA
    • Register
  • Services
    • Feasibility
    • Residential
    • Geo Forensics
    • Peer Review
    • Design Assistance
    • GCHP & GHX design
    • Manage your GHX
  • Products
    • Ground Loop Design >
      • GLD quote
    • GeoCube
  • Projects
    • Agriculture
    • Commercial >
      • Steinbach Credit Union
      • Walkerton CWC
      • 2211 West 4th
    • District Systems >
      • Gibsons, BC
      • Seasons of Tuxedo
      • Miami, MB
    • Institutional >
      • Prairie Dale School
      • St. Pierre Church
      • College Universitaire St. Boniface
    • Multi-family Residential >
      • Bethany Manor
      • YWCA Elm Centre
    • Recreational >
      • Port Hawkesbury Civic Centre
    • Retail >
      • Neechi Commons
      • IKEA, Centennial, CO
  • Blog
Search by typing & pressing enter

YOUR CART

9/28/2014

Other considerations that increase the feasibility of a GCHP system (part 6 of 7)

The first thought many have when considering the payback of a GCHP system is: "how much extra the system will cost compared to a conventional HVAC system" divided by "how much the system will save in energy costs". But there are often other things that should be considered when thinking about the payback of a system.

Read More

9/26/2014

Site Accessibility - is a GCHP system feasible on your site? (part 5 of 7)

Getting drill rigs and excavation equipment onto a large schoolyard to install a GHX is usually easy to do. There's ample space to store materials on the site, space for site construction trailers and areas dirt from excavations can be piled.  As larger GCHP projects are built on smaller sites, getting heavy equipment onto the site becomes much more challenging and expensive. 

Read More

9/24/2014

Utility costs and GCHP systems - when is geo feasible? (part 4 of 7)

In over 3 decades working in this industry I've had two clients who have not been directly concerned about the return on the investment needed to install a GCHP system. One was an association of roofing contractors...they were mostly concerned about installing equipment on the roof of their new building than the cost of the GHX. The other was an association of rural municipalities who simply wanted to make a statement about "how green they were". Virtually everyone considering a GCHP system asks two questions:

Read More

9/24/2014

Contractor resources - making geo feasible for more projects (Part 3 of 7)

The laws of supply and demand apply to almost any product or service. That's true when you're trying to find strawberries in the middle of winter. It's just as true if you want to find someone to drill 500' (152 m) boreholes in an area where drillers only own drill rigs designed to drill to a depth of 300' (91 m). To build a GHX that only contractors from two states away have the equipment to build will almost always cost more to build than a GHX that can be built by local contractors. 

Read More

9/20/2014

Geology - when is geo feasible? (part 2 of 7)

A GCHP system, by definition, transfers energy to and from the ground. Obviously the temperature of the ground, thermal conductivity and diffusivity of the ground have an impact on how much and how quickly energy can be transferred between the fluid circulating through the GHX and the ground. The geology has an impact on how how much land area is needed to build it and how expensive it will be to build. 

Read More

9/18/2014

Integrated design process - making geo feasible (part 1 of 7)

I've often seen a tender for construction of a GHX that specifies the GHX must be designed to supply "xxx" Btu's or kWh of energy based on a peak cooling load of "xx" tons or kW and a peak heating load of "xx" Btu/h or kW. In most cases little additional information is provided - not the area of the building, what the building is used for, how it's constructed... nothing else. Designing a GHX based on that information is impossible.

Read More

9/12/2014

What happens to a GHX in extreme climate years?

If you lived in Canada or the northern States you're probably not looking forward to another winter after the record cold and snow we experienced. Winnipeg, MB had the coldest winter since 1898! That erased most of the memories we had from only two years earlier when we had one of the warmest years on record. What happens to a GHX when we go through extreme weather events like that?

Read More


    Ed Lohrenz

    In my blog I'll be expressing my opinions about what I've the learned about ground coupled heat pump (GCHP) systems over the last 30 years. I've been very fortunate to work with many interesting people who are passionate about this technology...engineers, geologists, mechanical contractors, drillers, excavation contractors...in different parts of the world. I've learned a lot from them and will be using this forum to pass on some of the things I've learned and feel are important. Please feel free to use this information if you feel it's worthwhile...hopefully you can avoid some of the same mistakes I've learned from.

    Archives

    September 2021
    November 2016
    January 2016
    April 2015
    February 2015
    January 2015
    October 2014
    September 2014
    April 2014
    February 2014
    January 2014
    December 2013
    November 2013
    October 2013
    September 2013
    August 2013




    Categories

    All Building Design Energy Storage Energy Supply Energy Use Ground Heat Exchangers Incentives Industry Events Interesting Systems Monitoring Your System Product Info Standards System Design Training Workshops Waste Heat Recovery

    RSS Feed



HOME
ABOUT







Privacy Policy 
TRAINING
      CGD Courses Online

      CGD Custom Courses
      CGD at IGSHPA

SERVICES
  Feasibility
  Geo Forensics
  Peer Review
  Design Assistance
  GCHP & GHX Design
  Manage your GHX
PROJECTS
   Agriculture
   Commercial
   District Systems
   Health Care
   Industrial
   Institutional
   Multi-family Residential
   Recreational
   Retail
BLOG

GEOptimize Inc.                 220 Portage Avenue, unit 1410, Winnipeg, MB, R3C 0A5, Canada               +1  204-318-2156