Solar Power - What you need to know

As electricity costs rise, the sun can be used as an unlimited source of renewable energy and what’s more it’s free.

Solar technology is developing fast and there are two main ways for homeowners to use the power of the sun: heating water and generating electricity. The option / s that you choose will depend on the needs of your household and your budget.

Solar Water Heating
The most effective way to use the sun’s power is by installing a solar water heating system as water heating accounts for between 30%-50% of the electricity your household uses (according to Eskom). Installing a solar water heater to supplement or replace your geyser will reduce your hot water heating costs by up to 70%.

Solar Electricity
By installing solar panels called Solar PV (photovoltaic) you will be able to produce about 30% of the electricity your household needs. The balance of the electricity that you require will come from Eskom. You will need around 8m² of space for the panels and an area, often in the ceiling, for all the equipment. It is best to consult a professional to gain all the necessary information before deciding on the best Solar PV System for your needs.


What you need to know

• Solar panels don’t need continuous sunshine to work, so they will continue to produce electricity even on overcast days.
• Whether you are using solar panels in a solar water heating system or to produce solar electricity, they will work best if they are facing north and free from shadows.
• Ideally, panels should be at an angle of 30-60 degrees. However, if you have a flat roof or even a wall or floor in a good position, you can get brackets to fix them in place for maximum daylight.
• Your installer will be able to advise you on how many panels you need for your household. The cost will depend on where you live, the type of panel and system you want and the ease of installation.

Eskom’s Solar Water Heating Programme

Eskom’s Solar Water Heating Programme offers a rebate to homeowners who install solar water heating through an Eskom accredited and SABS supplier.  Not only does the programme aim to significantly increase the number of solar heaters sold in South Africa, but, more importantly, it is an opportunity to improve the technology involved and become available to all aspects of society.

Consumers can claim the rebate directly from the programme facilitating auditors, provided that the product and supplier are registered for the programme and the installation is signed off by a registered installer. The rebate value applicable to any participating solar water heater is based on the capability of the system to replace the use of electrical energy.

Visit www.eskom.co.za/dms or call 011 800 4744 for more information and accredited suppliers/installers.