Ford Motor Company Goes Green with Geothermal
General Heating and Air Conditioning was selected to install the first phase of Ford Motor Company’s geothermal borefield in its downtown Dearborn, MI campus.
The borefield consists of 12 circuits totaling 90 bores of Rygan vertical heat exchangers at 200-250 feet deep. The borefield also includes some large diameter 24” SDR-15.5 HDPE piping that will be completed at a later date as well as a GHP header vault that will accommodate another 104 bores in the future. Due to strict EPA regulations on large energy users, Ford needed to seek an alternative energy source to provide hot and chilled water to its sprawling campus. Geothermal energy is one of the sources they selected to help keep their processes on line. The problem with geothermal energy is that it can take up a lot of land, which this downtown campus does not have an abundance of.
The solution was the Rygan heat exchanger. With its best-in-class technology for ground heat exchange, we are able to install less bores than a traditional u-bend bore. The result is a smaller borefield footprint that yields more tons of heat exchange. This new technology has been challenging to install, but our crews have been innovative and created new jigs to install the product with ease. Crews finished up installing the last couple of circuits and filled and flushed the system per International Ground Source Heat Pump Association (IGSHPA) standards at the end of last month (September). Once the field is backfilled, it will be tuned into a surface parking lot for Ford’s workers.