News | 400C Energy

MEDIA | THINKGEO ENERGY, Carlo Cariaga

400C Energy Completes Demonstration of Stimulation Technology for Superhot Geothermal

July 23, 2025

Startup geothermal developer 400C Energy has announced the successful completion of a demonstration of its proprietary superhot-capable hydraulic fracturing technologies in a >300 °C enhanced geothermal well. This rigorous field demonstration advances the 400C Energy stimulation Technology Readiness Level (TRL) from 7 to 8, marking a significant leap forward in the economic development of high-temperature and superhot enhanced geothermal systems (EGS)...

PUBLICATION | GRC Rising Conference Reno, Nevada

Publication | Flow Control Devices for Improved Enhanced Geothermal
System Thermal Longevity and Power Techno-economics

October 26, 2025

Recent field demonstrations show that enhanced geothermal systems (EGS) have a significant potential to provide cost-competitive firm power. However, the longevity of these systems is not fully understood yet. Flow nonuniformity in EGS can cause premature thermal short-circuiting and significantly reduce system lifetime and economic performance...

MEDIA | WoodMackenzie, Katie Adie

Rock solid: geothermal’s upward trajectory | A series of announcements in Q1 2025 will drive expansion and innovation in the sector, continuing the trend of rapid growth

June 3, 2025

Newcomer 400C Energy recently acquired a well in Salt Cove, Utah where it plans to drill an EGS well pair. The project is targeting a depth of 2,500 metres, temperatures of 275°C and 100 kilogrammes per second in flow rate...

MEDIA | THINKGEO ENERGY, Carlo Cariaga

400C Energy Aquires an Existing Geothermal Well at Salt Cove, Utah to Demonstrate their Superhot-capable Stimulation, Drilling and Production Technologies

February 7, 2025

400C Energy, a tech-enabled enhanced geothermal developer, is pleased to announce the acquisition of an existing well in Utah, nearby the DOE FORGE project. The company will demonstrate its superhot-capable stimulation technology in this pilot well, offering a scalable and globally deployable solution for 24/7 carbon-free power...

MEDIA | THINKGEO ENERGY, Carlo Cariaga

400C Acquires Geothermal Rights in Utah for 100-MWe EGS project

January 13, 2025

400C Energy (400C), a tech-enabled next-generation geothermal developer, is pleased to announce the acquisition of 1960 acres of exploration rights in the State of Utah. 400C will develop this hot, dry resource offset of the Department of Energy FORGE project and Blundell Geothermal Power Plant to produce carbon-free, 24/7 dispatchable electricity at an LCOE comparable to solar...

SUBSCRIBE