Geothermal energy - the thermal energy derived from the heat contained in the Earth, which is recognised as essentially limitless, its use being only restricted by technology and the associated costs.

It is environmentally clean, renewable, sustainable and is the largest energy source available to mankind.

Geothermal energy can be used directly as a heat source with a range of industrial applications, or indirectly in a thermal power plant to produce electricity.

The Earth’s heat is a combination of radioactive decay of uranium, thorium, and potassium in the Crust and Mantle, and primordial heat left over from the planet’s formation.

Kalahari GeoEnergy
Information Sheet
April 2013

1.69MB | PDF

Geothermal targets must currently be sufficiently hot (>circa 130°C) and sufficiently close to surface (<4 Km) to justify commercial development. Exploitable targets have hitherto been associated with areas of recent volcanic activity – Pacific Rim (including western seaboard of America), Italian Alps, Iceland and the East African Rift System, which are largely high enthalpy. However, there are a larger number of low enthalpy geothermal systems that also have the potential to produce power and it is these that may provide the energy for the majority of globally produced geothermal power in the future.

Geothermal power production is already a reality in Africa with current production in Kenya at 220mW and a projection of 2,000mW by 2020.

On-going Geophysics work programme to resume in April 2013 with gravity survey on Kafue Graben target.

Initial drill programme planned for Second Quarter 2013.