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Geothermal energy

Geothermal

Installed home heating system

Why Geothermal in Alaska?

How does geothermal work?

A geothermal system transfers heat between your building and the ground through a closed-loop system buried below the surface.

  • Ground loop: Underground piping that exchanges heat with the earth
  • Heat pump system: Moves heat into your building in winter and out in summer
  • Distribution system: Delivers heating or cooling through ducts or radiant systems

Instead of generating heat, geothermal systems move existing thermal energy — making them significantly more efficient.

FAQ

Questions about geothermal systems?
View Geothermal FAQs

Products

Geothermal systems are built differently than other energy solutions. Every installation is designed around your property, heating demand, and long-term performance goals.

RES works with geothermal equipment and configurations suited to Alaska conditions, selecting the right combination of ground loop design, heat pump systems, and distribution methods to ensure reliable, efficient performance over time.

View our full geothermal catalog

Testimonials

Learn why customers from over 200 locations across Alaska trust RES for their renewable energy needs.
"When our old inverter died Fred was extremely helpful. He was patient and articulate in teaching us how to program and use our new system. It was so refreshing to have an actual person on the phone. A big thank you to Fred. Your patience was appreciated."

Contact Us

Plan your long-term heating solution

The most effective systems start with a detailed understanding of your site and how your building uses energy. We’re here to help plan and execute from start to finish. We even provide custom training and educational classes.

Request your free quote

Geothermal FAQ

    • A geothermal system uses underground loops and a heat pump to transfer natural heat between the earth and your building, providing highly efficient heating and cooling without generating heat.

    • Ground loop systems can last 50+ years.

    • Yes, geothermal systems can reverse operation to provide cooling in summer.

    • Geothermal systems can deliver multiple units of heat for each unit of electricity used.

    • Geothermal uses a ground source heat pump to transfer heat between a building and the earth.