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Solar Facts
Solar Energy - South Africa
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Combined legislative and financial mechanisms for Solar Water Heater mass rollout |
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A solar water heater (SWH) project funded by REEEP and run by Sustainable Energy Africa (SEA) has already made progress towards establishing SWH businesses throughout South Africa.
However, one of the main barriers to these businesses upscaling is the lack of supportive legislation which would help minimise their risk. Following input from the previous REEEP project, the City of Cape Town SWH bylaw process is on track again. This legislation will require new buildings and alterations to install SWHs. The City of Ekurhuleni is also planning to develop similar legislation.
Read the full article here:
http://www.reeep.org/index.php?assetType=project&assetId=119 |
Are we making progress? |
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Respective energy consumption patterns in human settlements are distinct. It is notable that electricity accounted for 52% for cooking, 48% for heating and 70% for lighting of the total energy consumed by the residential sector during 2005, a marked increase since 2001.
The remainder of the energy consumed was provided largely by the combustion of wood (20% for cooking, and 25% for heating), and paraffin (21% for cooking, 15% for heating, and 7% for lighting). The use of coal has decreased to 3% and 7% for cooking and heating respectively.
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Utilization of solar energy in South Africa |
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Design curves based on measurements of solar irradiation in South Africa are presented for two geographic areas, the highveld and the Cape Peninsula, giving data on the amount of thermal energy that can be collected from the sun by use of flat-plate solar energy collectors. A brief description of solar collectors and discussion of some of the fundamental aspects of solar energy utilization are included. An example is given to show the design curves may be used to determine the surface area of a solar collector required for a given application. Cost figures are presented which indicate, as an example, that solar energy can be used to provide the domestic hot water supply for a private residence at a cost less than can be realised with conventional coal-burning, oil-burning, or electronic systems.
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Solar Water Heater Advancement Programme |
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The Solar Water Heater Advancement Programme aims to encourage and facilitate the adoption of solar water heaters in Cape Town. A goal of the Energy and Climate Change Strategy adopted by the City of Cape Town is to have 10% of all households and 10% of all City-owned housing equipped with solar water heaters
(SWHs) by the year 2010. To achieve this target the City is engaging in a number of initiatives:
- A Solar Water Heater By-law;
- A subsidisation scheme, using funding obtained from a number of sources to assist staff members with an income below a certain level to afford the fitting of a SWH in their home
- Co-operation with the Central Energy Fund (CEF) in their SWH subsidy scheme for City of Cape Town staff members with salaries in excess of the abovementioned limit
- A project to fit SWHs to the City’s nature reserve facilities
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