| SOLAR ENERGY USE IN HOME DESIGN
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| | Africa as it has in other more
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| 'The sun is a constant source of energy.
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| | technologically advanced and
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| Everyday it provides us with 5000 times
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| | environmentally awarecountries.
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| as much energy as the whole world needs.'
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| | Also, because the electricity has been so
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| (Unknown)
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| | inexpensive in SA, the cost of paying off
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| In the 1950s and '60s efficient energy
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| | a solar electricity system that provides
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| use was often neglected in constructing
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| | the same amount (or sufficient amount) of
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| buildings and houses, but the high energy
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| | electricity as a conventional system,
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| prices of the 1970s changed that. Some
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| | will take an extremely long time to pay
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| buildings built in the 80's use only
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| | off with the money saved without using
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| about 20% of the energy used in buildings
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| | conventional electricity, and most home
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| constructed just ten years earlier.
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| | owners in South Africa doesn't stay long
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| Techniques to save energy include
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| | enough in one home to justify the cost
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| designing and siting buildings to use
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| | saving.
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| passive solar heat, avoiding
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| | Another factor is that the technology is
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| overlighting, and using better
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| | becoming more advanced day by day, and
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| insulation. A "life-cycle" approach,
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| | one might purchase a system today which
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| which takes into account the total costs
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| | will reach the end of it's life before
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| over the entire life of the building,
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| | the system has paid for itself with money
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| rather than simply the initial
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| | saved from not using conventional
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| construction cost or sales price, is
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| | electricity is over.
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| encouraging greater efficiency.
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| | Sustainability & the environment
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| SOLAR ENERGY IN SOUTH AFRICA
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| | Eskom might well be one of the cheapest
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| Climate
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| | electricity providers in the world, but
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| South Africa is one of the areas in the
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| | it is also a fact that eskom releases
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| world with the highest count of sunny
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| | some of the most pollution in the
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| days per year in the world therefore
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| | atmosphere by burning coal to generate
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| making it also one of the most
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| | electricity. Although air pollution
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| appropriate places in the world to use
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| | doesn't seem to be that big a problem
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| solar power energy should that be the
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| | here than in other countries where acid
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| only reason for using them.
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| | rain etc. is huge concerns for the
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| A photovoltaic sell uses the sun's light
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| | community, it would be wise to sooner
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| to create an electric current and not the
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| | rather than later start to concentrate on
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| heat of the sun as is commonly thought. A
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| | the environment in South Africa and that
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| photovoltaic sell actually decreases in
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| | is when solar power could start playing a
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| efficiency when the sell is heated
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| | big role as an energy provider.
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| extremely because of the resistance
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| | Appropriate for us?
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| building up in the material. Because of
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| | Solar panels can be used very effectively
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| the above fact, one can see that these
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| | and appropriately in the remote areas
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| photovoltaic panels is actually less
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| | around the country because the cost of
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| efficient in very warm climates. South
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| | connecting to the conventional power grid
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| Africa, in summertime, can be extremely
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| | by laying cables might be even more
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| hot and could cause a photovoltaic panel
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| | expensive and once a solar PV system is
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| on certain summer days to work less
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| | installed one does not need any tools or
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| efficient although not as significantly
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| | technicians to maintain a PV panel
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| as 25% less efficient as it is said can
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| | regularly.
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| be lost in desert-type climates.
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| | There are a number of places in our
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| Cost efficiency & economy
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| | environment where solar power could be
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| Eskom South Africa provides our country
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| | (and are already) used very effectively
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| with some of the cheapest conventional
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| | for example water pumps to dams in nature
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| unsustainable electricity costs in the
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| | reserves. PV panels have also been used
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| world, and that is the main reason for
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| | to power electric fencing in game
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| solar energy technology not taking off in
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| | reserves very successfully for
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| South Africa. Although a number of solar
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| | interruptions in electricity is
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| thermal panels is in operation, even in
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| | eliminated and big mammals like elephants
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| residential buildings in the country,
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| | has no chance of breaking through a fence
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| photovoltaic panels was up to date just
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| | as could be the case in an normal power
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| not cost effective enough to justify the
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| | interruption.
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| money saved using conventional
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| | In conclusion, the use of solar power in
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| electricity for manufacturers making them
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| | South Africa isn't that far fetched when
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| available on a large scale. Because of
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| | one look at the very appropriate weather
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| the uncommonness and unavailability of
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| | conditions and the need to look at a more
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| these panels the prices of theses panels
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| | sustainable and renewable energy source
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| has not significantly decreased in South
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| | for the future.
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