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An innovative microgrid in Upper Blinkwater, South Africa, delivers sustainable renewable electricity, empowering communities and driving local development.

Power at last

Approximately 1.2 billion people around the world still lack access to electricity. Microgrids can bring power to the most remote locations, using renewable energy sources to ensure climate-neutral and sustainable solutions. Upper Blinkwater, South Africa, serves as a model for this approach.

When Neliswa Gaju wants to know what's going on in the world right now, she goes into the living room and turns on her TV. That may sound trivial, or like a boring, self-evident routine. But it's not! Because Neliswa lives in Upper Blinkwater in the Eastern Cape of South Africa about 200 km north-east of Port Elizabeth. The small village with about 70 households is so remote that it was not connected to the national electricity grid. For a long time, there was no electricity here until 2020, when a small independent power grid - a so-called microgrid - was installed. Many different companies and associations are involved in the project, which was initiated by the Eastern Cape Province in South Africa and the federal state of Lower Saxony in Germany.

Happy South African woman posing with baby in rural village.

Everything is easy now

“Our life was very, very difficult at that time of our parents, the old time”, says Neliswa. “At that time, we were using fire for cooking, even for making warm water. Every morning, staying up early in the morning and doing that job. And cooking, everything we were doing on the fire. Even lighting, were using candles and paraffin to light at night. Now, everything has changed. Everything is easy! We can use electricity for cooking, ironing, fridges, washing machines. We have electric lights and TVs. We can watch everything, even from overseas.”

Man typing on computer at power plant.

Desmond Mabilo

The microgrid in Upper Blinkwater consists of three main components: a photovoltaic system (75 KWp), a diesel generator and a battery storage system. "The smart grid is connected and controlled by components from Siemens ", explains Desmond Mabilo from Siemens Smart Infrastructure, who accompanied the installation of the system. "A SICAM Microgrid Controller controls the energy sources (PV, diesel generator, battery) and a load-shedding module ensures that the electricity is used optimally. With this system we ensure that there is at least enough energy for each household to run a mobile phone charger, a TV plus satellite dish and a kettle. In addition, there are some communal washing machines and a few commercial machines."

A sustainable solution

"The diesel generator, which of course is not sustainable, is only used when the solar system cannot run and the battery storage is empty," says Desmond. "In the past three years, Upper Blinkwater has already been able to generate about 90% of its electricity through photovoltaics. To make sure we do even better in the future, we will also be integrating small wind generators into the microgrid. Analyses have shown that there is enough wind in Upper Blinkwater. Therefore, we expect that in the future we will only need to use the diesel generator here very rarely and will be able to supply the households exclusively with sustainable electricity."

A chance to break away from poverty

“It was amazing to see the economic activities that were triggered by the provision of electricity alone. When we came here for the first time, there was very little economic activity in this little community. A lot of the trade was actually barter”, says Tshibvumo Sikhwivhilu, co-founder and Chief Executive Officer of Lamo Solar. “Now, four years down the line, we were taken aback by the changes. For example, there is a local carpenter who is able to make chairs and tables through renewable green electricity to provide and sell them. Now, those chairs may appear as, you know, a luxury or something to sit on because it is furniture, but the impact of having a chair far spans beyond what we see with our naked eye, because schools and children are able to gather at one place sitting on something that is a lot more comfortable and not under trees to learn. A small step to break themselves away from the cycle of poverty. “

A solution for many villages

Upper Blinkwater is not an isolated case. In the Eastern Cape Province in South Africa alone, about 25% of rural villages are not connected to the electricity grid. Worldwide, around 1.2 billion people have no electricity and are therefore excluded in principle from many opportunities to live, trade and communicate with each other. Microgrids create new perspectives for these people and are sustainable at the same time.
Neliswa says: "The news in South Africa is full of reports about electricity shortages. Many people complain about loadshedding (temporary disconnection of electricity due to overload of the grid). We don't have that problem in Upper Blinkwater. Our electricity is stable.”

Aenne Barnard, August 2023

South African man standing in microgrid facility.

Tshibvumo Sikhwivhilu

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