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Home » Authors » Jay Egg
Jay Egg

Jay Egg

Jay Egg is a consultant and designer of geothermal HVAC systems, in addition to being author of two books and several articles on the subject. He is the Founder of Egg Geo, LLC, and focuses on geothermal advocacy, engineering,  and educational efforts. He can be reached at [email protected] or egggeo.com.

Articles

ARTICLES

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Geothermal HVAC

Thermal Energy Networks: Bridge Technology for Sustainable Energy Solutions

Five significant gatherings across various locations highlight the growing importance of geothermal technology in urban energy systems.
April 3, 2025
Jay Egg

Thermal energy network events in early 2025, including five significant gatherings across various locations, highlight the growing importance of geothermal technology in urban energy systems. 


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Geothermal HVAC

An Update on the IRA and Geothermal Systems

The legislation made the Investment Tax Credit and Production Tax Credit more valuable and expanded the types of qualifying projects.
January 6, 2025
Jay Egg

The Inflation Reduction Act offers significant incentives for geothermal HVAC projects through 2032, including tax credits and direct funding.


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Geothermal HVAC

Electricity or Thermal Energy?

TENs make it possible to significantly reduce electrical demand and level of electricity consumption year-round.
November 1, 2024
Jay Egg

Decarbonizing buildings and industry is crucial for reducing global energy consumption, predominantly in the form of heat. Thermal energy storage plays a significant role in this process by reducing reliance on electrical energy and batteries. Thermal energy networks that connect multiple buildings into a shared energy network can significantly reduce electrical demand and consumption.


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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.
July 7, 2024
Jay Egg and Kristy 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

Pipefitters Union Brings Strength to National Uptake of TENs

Countless building trades are assured of plentiful and high-paying jobs as utility thermal energy network systems continue to roll out.
June 3, 2024
Jay Egg
With the backing of the United Association plumbers and pipefitters union, utility thermal energy network systems were given a chance in New York as the Utility Thermal Energy Networks and Jobs Act of 2022 became law on July 5. Jay Egg explains how these energy networks can help the building trades and consumers.


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Geothermal HVAC

Perfect TENs

Geothermal heat pumps tied into building loops and thermal energy networks will be as simple as installing window air conditioners or washing machines.
May 6, 2024
Mimi Egg and Jay Egg

Thermal energy networks can increase the value of other heating/cooling industry opportunities: increased employment of pipefitters and mechanical engineers, repiping of old buildings, improvements in heat pump design, wastewater system design with heat transfer, geothermal heat pump training and quality inspections.  


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Geothermal HVAC

Thermal Energy Networks Take Shape in Rochester, Minnesota

The city has pledged to reduce greenhouse gas emissions by 100 percent over the next three decades.
February 5, 2024
Jay Egg and Mimi Egg

This city, which prides itself on progressive, bold and community-centered ideas, uses geothermal and thermal energy networks to help reach its goal of 100 percent reduction in greenhouse gas emissions over the next 30 years.


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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.


Read More
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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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View All Articles by Jay Egg

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