| Low cost and low energy housing in South Africa
The African Sustainable Housing Initiative
The African Sustainable Housing Initiative is a cooperation between
the European regions of Lower Saxonia (Germany) and South Tyrol
(Italy) and the region of East London (South Africa) to build low-cost
and low-energy housing for the poor in South Africa. The majority of
them cannot buy the necessary energy at a reasonable price. In
addition, they live in houses with poor thermal insulation which need
more energy than regular houses.
Low Saxonia and South Tyrol have built up expertise in lowering the
domestic need for energy and freeing people from fossil fuels. Lower
Saxonia has experience in both of these and a connection with South
Africa’s East London region and South Tyrol contributed their
knowledge of ‘KlimaHouse’.
Of utmost importance is the fact that the energy consumed in the
private sector, mainly in homes, represents the major part of
consumed energy: both electric and caloric.
The right approach
The global view: no additional CO2 emissions will occur, so the
impacts of global warming will be less because fossil fuels are not
being used. However, an improvement in living standards and comfort
will happen;
The regional view: South Africa has no oil reserves, but there is
coal available regionally. In the future, this would not be used on a
large scale, so there would not be a further fossil-fuel dependency;
and,
The personal view: the constantly increasing costs of fossil energy
are a huge problem, especially for the poor. The economic gap
between rich and poor will widen if no new way is found to help
them decrease their fossil-fuel needs and dependency.
This win-win cooperative helps local action solve global problems
and will succeed if it is followed step by step. And, of course, the
recognition of local benefits always inspires people into action.
We need to deal with the three following sectors:
- Local administration: We need to activate the political cooperation
amongst Lower Saxonia, South Tyrol and East London so the local
governments become partners and prepare the regional
administrative background.
- The technical and construction aspects: High insulation panels are a
primary requirement. The panels used currently are made in a
sandwich form with two metallic sheets on both external sides and
with foamed polyurethane as insulation. Even if this is made from
fossil origins, it is a starting point which will be further developed
with locally available renewable materials. Technically speaking, there
are many logistical issues to solve: thermal bridges, not loose energy,
hygienic-sanitary conditions, local electricity and water supplies,
waste conditions and so on.
- The human and social side of the project: Our goal is not to
activate an European export to South Africa, but to solve the need
for housing in this region and keep the solution in within the people’s
social behaviours. This means low cost for acquisition and
maintenance, but it also means respecting social beliefs and customs.
The only way to fulfil the needs of local residents and increase their
sense of self-esteem is to develop a new identity in their own social
milieu. This way, the initiative will be accepted by all. When you
possess your own quality home, gives you a sense of your own social
status. It can count as a prerequisite to a professional career and a
family life.
These three points of view have to be developed independently from
each other, but must be well coordinated. The success of each step
will be the responsibility of the working teams in place.
So, what’s next?
The political understanding between Lower Saxonia and East London
already exists. The relevant parties have already expressed their
interest and confirmed their active role in the project’s realisation.
Work is going ahead on the technical level: A prototype 60 m? unit is
planned. To envisage the actual houses on the specific sites, we need
more details, in order to meet the needs and characteristics of the
site where the houses will be built. This includes:
- The soil’s composition where the house will be built;
- Doors, windows and other components should be available locally,
but have to meet specific criteria;
- The interior ventilation system has to satisfy cooling and heating
requirements and has to be in line with microclimatic conditions; and,
- Sanitary facilities have to fit existing infrastructure (for example
waste and water).
The project’s objective is to help poor regions become autonomous.
To this end, it is a starting point to use locally available materials and
renewable energy to satisfy the individual conditions, needs and
wishes. The transfer of know-how from the two European regions is
just the start; first in South Africa, but also in every other country
where similar energy savings and low-cost structures are needed.
|