Green Therma began with a question: could the tools and insights from oil and gas be applied to solve one of the world’s greatest energy challenges – producing and delivering more sustainable heat?

In 2020, as interest in geothermal energy grew, a group of visionary and entrepreneurial individuals explored how technologies might overcome the long-standing limitations of traditional geothermal systems. With deep experience in horizontal well design and innovation in closed-loop pipe systems, the team discovered a simpler way to tap into the earth’s heat without geological risk and with much lower environmental impact.

What started as an exploration of a new idea soon evolved into something more significant. With support from their network and investors, the founders came together to bring the idea to life through Green Therma, with a mission to rethink geothermal heat.

Building on that original vision, Green Therma is now dedicated to delivering renewable, reliable, and scalable heat through our Heat4Ever™ solution, helping communities, businesses, and cities transition to more sustainable heat.

The Heat4Ever™ solution

Heat4Ever™ works by capturing the constantly emitted energy from the Earth’s core and turning it into clean, usable heat at surface level. Safely, reliably, and without interfering with subsurface environments.

The system works by circulating water in a completely closed pipe solution, where the working fluid runs inside the pipes deep underground without entering the underground. As the working fluid moves within the pipe installed in deep, hot rock, it absorbs natural heat from the surrounding rock. This energy is brought back to the surface using the innovative DualVac™ technology. It can then be utilized for heating homes, buildings, or industrial processes, such as those in horticulture, breweries, campuses, and medical centers.

DualVac™

A key feature of Heat4Ever™ is our patented DualVac™ insulation pipe technology. This innovation creates a continuous vacuum over the entire pipe-string that insulates the hot and cold sections of the pipe. Working with the same principles as a thermos, the DualVac™ technology minimizes fluid heat loss on its way to the surface and maximizes temperature preservation and energy output from the solution. The ability to maintain the temperature allows direct use of the heat in district heating networks and a variety of industrial processes.