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Home » Authors » Jay Egg

Articles by Jay Egg

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Geothermal HVAC

Eradicating Energy Poverty: Thermal Energy Networks

Communities can use waste heat from commercial buildings and wastewater to provide space heating, domestic hot water, and even air conditioning.
November 3, 2023
Jay Egg

As energy bills go up and down, many consumers are sometimes put in the position of paying the electric or gas bill or buying food or medicine. Communities can help by researching alternative heating methods, such as sharing waste heat. 


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Geothermal HVAC

Wastewater Energy Transfer Hits the Big Time

This technology, which extracts the heat by sending wastewater through a heat exchanger, is closely related in concept to ERVs.
September 15, 2023
Kristy Egg and Jay Egg

Wastewater energy transfer has risen to the top as a preferred initial method to begin the decarbonization efforts for commercial buildings and thermal energy networks of all types and sizes.


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Feature

Geothermal Coming of Age: A Short History

Looking back at the early days of geothermal manufacturing and installation in the United States.
July 5, 2023
Jay Egg and Kristy Egg

Jay and Kristi Egg describe the efforts of David Hatherton and Dan Ellis in championing geothermal heating and cooling and the manufacturer of ground-source heat pumps in this country.


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Geothermal HVAC

Domestic Hot Water Trifecta

The evolution of geothermal heating and cooling depends on thermal energy networks, wastewater energy transfer and phase change materials.
May 1, 2023
Jay Egg

Thermal energy networks, wastewater energy transfer and phase change materials are three technologies that can further our decarbonization and electrification work. Read on to see how they work together.


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Geothermal HVAC

When Does Aquifer Thermal Energy Transfer Work Best?

The system pumps water from an abundant aquifer and runs that earth-temperature water through exchangers in the mechanical room.
February 3, 2023
Jay Egg

This column relates some of the caveats and facilitates the protection of groundwater resources while ensuring the optimal performance of an aquifer thermal energy transfer system.  


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Geothermal HVAC

New York’s Thermal Energy Networks Law

It allows energy utilities to distribute and sell thermal energy contained in hydronic ambient temperature pipelines running through cities.
August 5, 2022
Jay Egg

This TEN legislation took about seven years from concept to passage. 


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Geothermal Hvac

How to Construct a U.S. Geothermal Energy Network

We built 1.5 million miles of gas lines over 20 years in the 1950s and 1960s. Can we do the same with geothermal energy networks?
June 3, 2022
Jay Egg

As we undertook an enormous infrastructure project after World War II to build gas pipelines, our future includes constructing local thermal energy networks — much more practical than country-wide pipelines. 


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Geothermal HVAC

Wastewater Energy Exchange is Making Sense to Energy Utilities

Geothermal heat pumps are the central component of the thermal extraction/rejection portion of energy recovery.
April 15, 2022
Jay Egg
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Geothermal HVAC

Infrastructure Upgrades Are Balancing Our Energy Budget

Thermal energy networks can eliminate greenhouse gas emissions from buildings and improve community and public health challenges.
February 7, 2022
Jay Egg and Kristy Egg

Healthier communities that stopped burning fossil fuels and no longer emit greenhouse gases are a result of thermal energy networks. 


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Geothermal HVAC

Plumbers Protect Our Health and Pipe Our Thermal Energy

Sustainable thermal energy networks can reduce peak electrical consumption in the summer and eliminate electrical spikes in the winter.
February 7, 2022
Jay Egg

Properly implemented, these thermal energy networks will fill our city centers with sustainable energy solutions that will reduce peak electrical consumption dramatically in the summertime and eliminate electrical spikes in the wintertime.


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