Tag Archives: Solar

Nice weather, cold pool water!? Heating your swimming pool – how does it work?

Nice weather, cold pool water!? Heating your swimming pool – how does it work?

Heating your swimming pool

The cold water from your swimming pool is pumped through the solar pool heating panels which are installed on the roof of your house (on the north facing side of the roof). The heated water from the panels is redirected through a closing valve back into the existing piping leading back to your pool. The water is circulated for the whole time while the pump is running. Your existing pool pump is used, therefore no additional cost is incurred.

You want to have your solar pool heating panels installed on the roof of a double storey house…. please note!

We recommend a 1,1 kWh pool pump for best results. This is not to say that the 0,75 kWh pump will not work but rather that the solar system efficiency will be reduced by using a 0.75 kWh pump.

How many panels do you need for solar pool heating?

Measure the length and width of your pool. For example (4 meters x 8 meters = 32 meters) divided by 3.6 will indicate that you would need a north facing area for 9 panels of 1.2 meters in width and 3 meters in length.

If your pool pump is faulty and needs to be replaced?

Hint: Keep in mind that the higher the watts, the more electricity your pump will use. A 0.75kW pump is sufficient for most swimming pools (for both the pool cleaning/filtering and circulating the water through the solar heating panels).  If you are unsure, you are welcome to give us a call.

We also offer heat pumps for swimming pool heating:

We also offer heat pumps as a solution where the solar pool heating won’t suffice (where a much higher temperature is required during winter months).

Solar Juice services include the installation of:

As well as the following services:

  • Service of existing systems (solar geyser, ITS heat pumps, pool heating) ….…. more info
  • Adapt the settings on your geyserwise controller & also show you how to do to it yourself ….

To request a service or quote from us:

Kindly visit https://solarjuice.co.za/request-quote/ or email: Leon.Needham@solarjuice.co.za or call 083 384 3840

Solar Juice: Service area

Western Cape (Cape Town ,Somerset West, Strand, Gordons Bay, Kleinmond, Stellenbosch, Paarl, Franschhoek, Malmesbury,Piketberg, Montagu,  …)  Please ask if unsure


Did you wonder what happened to Prof Vivian Alberts’ development of the thin-film solar module technology (University of Johannesburg: 1993+)?

Solar thin-modulePROUDLY SOUTH AFRICAN!!

The thin-film solar module technology (developed by Professor Vivian Alberts at the Physics Department at the University of Johannesburg (UJ) in 1993) is now in production at Technopark, Stellenbosch.

High-tech Solar Plant Opened In Stellenbosch

South Africa – and Africa’s – first semi-commercial plant for producing and marketing a thin-film solar module was officially opened in Stellenbosch this week.

The module will provide an effective way to convert solar energy into electricity.

Photovoltaic Technology Intellectual Property (PTiP) (Pty) Ltd is the first company in South Africa to convert basic raw materials through 15 production processes into a fully integrated solar energy product – all under one roof.

Depending on the type of glass used, the local content of the panels is between 80% and 90%.

The core aspects of technology and related products were developed and up-scaled over past 20 years.

The new generation thin-film photovoltaic technology was fully developed in South Africa and will now be produced at the Stellenbosch Technopark.

The thin-film module includes a unique homogenous semi-conductor alloy, comprising five chemical elements. The total thickness of the active materials in the thin-film module is only 3 microns, compared to the traditional first-generation silicon technology with a thickness of more than 300 microns.

The development of the technology was initiated by the Physics Department at the University of Johannesburg (UJ) in 1993, led by Professor Vivian Alberts.

As a university project, world-class results at laboratory level were already achieved in 2002.

The Department of Science and Technology funded a pilot plant at UJ through the then Innovation Fund, to the tune of R13 million.

In 2011, the Technology Innovation Agency (TIA) approved a second round of funding of R20 million to the UJ spin-off company, PTiP.

The TIA funding was backed by an initial R93 million co-funding from the Industrial Development Corporation (IDC).

The facility currently employs 10 people, excluding building and equipment contractors.

Photovoltaic technology is one of the fastest growing industries in the world. In 2011, thin-film solar photovoltaic technology accounted for 11% of market share and further growth is expected.

The launch was among others attended by Alderman Conrad Sidego, Mayor of Stellenbosch, and Geoffrey Qhena, IDC CEO.

Posted by On February 04, 2014