Remote Communities

Power and Clean Water from Local Resources

Frans Bezuidenhout the inventor of Ardau living in South Africa saw that on much of the continent local communities have no access to ­electricity and clean water. He resolved to find a way to bring these to remote locations using materials local people would have available. This was one of his two drivers for the design of the Ardau system. The second driver was the wasteful and polluting nature of electricity generation that he saw in power stations. He designed Ardau to address both these areas of concern.

He knew that to meet them required a system that could use local resources and could easily be transported to the communities that needed it.

So he designed Ardau with these needs in mind. A system that could use local waste and sewage as well as any other locally available materials. A system that could fit into a standard 40 foot container and be delivered by truck or helicopter. A system that would provide electricity and drinking water reliably and continually.

The smallest Ardau unit can provide 5MWh of power. That is enough for around 3,000 families. For larger communities, units of up to 50MWh are available.

The System

Ardau is a patented system that converts any carboniferous material into energy. A chemical reaction inside an enclosed carbon reactor extracts the maximum energy from the fuel. Heat and power are generated . The process is extremely efficient, and a wide range of materials can be used as fuel.

There is no new technology involved in the process. It uses tried and tested technologies in a new configuration.

Ardau in Operation

An Ardau installation consists of a multi-purpose carbon reactor and a turbo-expander together with devices to handle the inputs to the system and its outputs. The reactor produces supercritical fluid (a form of superheated steam) at a very high temperature and pressure. This drives the turbo-expander to generate electricity. (Turbo-expanders with generator sets are very efficient producers of electricity and are a well-established technology.) As well as electricity the system outputs potable water.

Inorganic (unconsumed) matter drops out of the reactor without disturbing its operation. Any valuable metals in this material can be recovered and sold. The residue is sterile and inert and can be used as a building material.

Ardau installations can operate 24/365 with only two hours downtime for cleaning each year, and a two-day maintenance programme every five years.


Ardau systems are not expensive to install or maintain and the space required is roughly that of a tennis court.

Possible Fuels:

Any local carboniferous material can be used to feed the chemical reaction. Such materials include:

  • Biomass – Wood and Wood Waste; Agricultural Waste; Livestock Waste
  • General Waste – Plastics; Municipal Waste; Factory Waste; Medical Waste; Sewage
  • Fossil Fuels – Coal; Lignite; Coal Waste; Oil
Outputs from Ardau systems:

Electricity – This is needed in remote communities to provide light and power for work, for education and for leisure activities.

Clean Water – Drinking water is a by-product of the Ardau process.

Further Information

For more information on Ardau for remote communities contact our sister company Ardau Community Waste Power Ltd (

Who or What Can Benefit By Using Ardau?
  • Local Communities that can have their lives transformed by the availability of power and clean water
  • Regions and Countries seeking a better quality of life for their people
Ardau installations will enable the world to continue to use plentiful and relatively inexpensive locally available fuels whilst minimalising the contribution these make to global warning.
The Ardau system is unique, and will fundamentally change the way mankind produces heat and power.

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