According to the South African National Energy and Development Institute (SANEDI) Cool surface technology offers an immediate, direct and inexpensive solution to South Africa’s strides towards an economy built on clean energy.
Through this technology, the environment benefits from a passive-energy cooling solution that includes cool roofs, cool walls and cool roads. Indeed, cool surfaces offer answers that demonstrate impact at various scales, industry and users.
SA’s national energy supply is under constant threat, compounded by a fragile grid that is dealing with increasing demand, particularly as the economy continues to gradually unlock.
The Project Officer for Energy Efficiency Cool Surfaces at SANEDI, Denise Lundall, explained that the rising energy costs have reduced citizens’ monthly cash flow that is needed for other essential necessities.
According to Lundall, SANEDI has encouraged South Africans to manufacture cool coatings for rooves, walls and roads which could result in new industries and employment opportunities.
Additionally, cool surfaces support the government’s drive to achieve multiple mandates. Cool roads, for example, can assist the Department of Transport to reduce the need for road maintenance and tyre damage, as it significantly reduces the surface and ambient temperature (of roads), effectively extending its lifespan.
In urban areas, SANEDI’s Cool Surface projects provide coating application training to local communities and partner departments, particularly those suffering from high unemployment. Successful graduates are offered paid jobs as supervised interns during project deployment and bring back invaluable experience to their own communities.
A UHI is a metropolitan area that is a lot warmer than the immediate areas surrounding it. Heat is created by energy from people, cars, buses, and trains in big and densely populated cities. These UHIs usually have worse air and water quality than its immediate neighbours and night-time temperatures remain high.
On an individual building scale, cool surfaces improve the thermal comfort of occupants in buildings without mechanical air-conditioning, like some schools, warehouses, homes and factories.
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