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Geothermal Energy - The Concept



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.

“The amount of heat that flows annually from the earth to the atmosphere is enormous – more
than needed to power all nations of the world – if it could be harnessed... If only 1% of the
thermal energy contained in the uppermost 10Km of our planet could be tapped this amount
would be 500 times that contained in all oil and gas resources of the world”
Geothermal Energy – Clean power from the Earth’s heat - US Geological Survey '08




16 August 2015
Commenced drilling further temperature
gradient holes at Bwengwa River. This is
part of an anticipated six hole programme
to define the geothermal resource.

17 November 2014
Geothermal Exploration Update




Kalahari GeoEnergy
Ltd Prospectus

May 2014

1.75MB | PDF

  Image Gallery  


Palm trees on Kafue Graben CEO briefing visitors
Geological trench to map fault structure Kapisya Geothermal plant
Aerial photography of thermal springs Measuring flow rate


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.


“Geothermal energy is potentially the largest – and presently the most misunderstood – source
of energy in the world today”
Al Gore “Our Choice”

Exploration and Research


- Intention to conduct further drill programme drilling from Q3 2014.
- Geophysics programmes ongoing at secondary targets within the Kafue Graben.
- Research programmes relating to other forms of geophysical survey and geo-botany
.. ongoing.

Kalahari GeoEnergy Ltd is a member of the International Geothermal
Association. For further information on Geothermal Energy and power
production please see www.geothermal-energy.org


(+260) 0211 840 431
40 Jesmondine (Corner Central St & Mwambula Rd), Lusaka, ZAMBIA
Plot 1672, Hill Top, Monze, ZAMBIA
Unit D, 11th Floor, Ho Lee Building, 38-44 D’Aguilar St, Central, HONG KONG

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