Jordkraft
Jordkraft develops deep geothermal technology that converts the Earth's internal heat into locally produced, fossil-free electricity. The company drills boreholes approximately 7 kilometers deep to reach temperatures of 300–400°C, creating stable steam wells that power 5 MW turbines—enough to supply around 4,000 homes with continuous, weather-independent baseload power.
- Energy
- Clean Technology
- Hardware
Funding
Founders
Founder details are not available yet.
Product
Problem
Traditional renewable energy sources like wind and solar are intermittent and weather-dependent, creating instability in electricity supply. In regions with thick continental crust, such as Sweden, accessing the Earth's internal heat for power generation has been technically challenging, limiting geothermal energy to volcanic areas like Iceland and New Zealand.
Solution
Jordkraft develops a deep geothermal technology solution that converts the Earth's internal heat into locally produced, fossil-free electricity. The company uses established deep drilling techniques from the oil industry to bore holes approximately 7 kilometers deep, where temperatures reach 300–400°C. Water is pumped down through a heat-resistant composite pipe and converted into dry steam in a titanium diffuser at the bottom of the borehole, creating a stable pressurized steam well. The steam drives a turbine and generator housed in a compact 150 m² building, producing 5 MW of continuous, weather-independent baseload power. This approach makes geothermal energy accessible in regions with thicker continental crust, offering a reliable and cost-effective complement to intermittent renewable sources.
Target Audience
Primary customers are industries, critical societal functions, and local communities seeking stable, resilient, and locally produced baseload electricity with minimal environmental impact.
Features
- Small-scale power plants producing 5 MW of renewable, fossil-free electricity around the clock, sufficient for approximately 4,000 homes
- Boreholes approximately 7 kilometers deep with surface diameter of 50 cm tapering to 20 cm at the bottom, reaching optimal temperatures of 300–400°C
- Proprietary steam-well control system maintaining constant pressure of exactly 200 PSI (13.79 bar) through precise water injection and valve interaction
- Titanium diffusor with an estimated lifespan exceeding 40 years, designed for controlled water atomization and even steam generation
- Heat-resistant lightweight composite piping with integrated LIN-bus cabling for control system communication
- Well-sealing and casing technology using cement and reused drill cuttings to prevent groundwater intrusion and maintain steam pressure
- Compact footprint of approximately 150 m² for the turbine building with remote monitoring and control capability