As the world transitions toward renewable energy sources, geothermal power has emerged as one of the most promising, yet underutilized, options in the clean energy portfolio. Unlike solar and wind, geothermal offers consistent baseload power generation capacity without intermittency challenges, making it an increasingly attractive component in the renewable energy mix.
The geothermal sector has shown increasing potential in recent years, with technological innovations expanding its possible applications beyond traditional volcanic regions. These advances are creating opportunities to tap into moderate-temperature resources that were previously considered uneconomical, potentially unlocking gigawatts of clean, renewable power across the globe.
It's within this expanding landscape that companies like Gradient Geothermal are pioneering new approaches. As a guest on The POWER Podcast, Ben Burke, CEO of Gradient Geothermal, outlined his company’s innovative approach to geothermal energy extraction that could transform how we think about energy recovery from oil and gas operations.
Modular and Mobile Geothermal Solutions
Gradient Geothermal differentiates itself in the geothermal marketplace through its focus on modular, portable equipment designed specifically for oil field operations, geothermal operators, and potentially data centers. Unlike traditional geothermal installations that require permanent infrastructure, Gradient’s equipment can be moved every six to 18 months as needed, allowing clients to adjust their thermal capacity by adding or removing units as requirements change.
“The advantage of mobility and modularity is really important to oil and gas operators,” Burke said. The company’s solution consists of two main components: an off-the-shelf organic Rankine cycle (ORC) unit and a primary heat exchanger loop. This system can handle various ratios of oil, gas, and water—even “dirty” water containing sand, brines, and minerals—and convert that heat into usable power.
One of the most compelling aspects of Gradient’s technology is its ease of installation. “Installation takes one day,” Burke explained. “It’s two pipes and three wires, and it’s able to sit on a gravel pad or sit on trailers.” This quick setup contrasts sharply with traditional geothermal plants that can take years to construct.
The units come in three sizes: 75 kW, 150 kW, and 300 kW. The modular nature allows for flexible configurations, with units able to be connected in series or parallel to handle varying water volumes and temperatures.