Measuring solar irradiation in Africa: a case for change

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  • Inaccurate solar production estimates impact all players across the power value chain
  • 3-20% overestimation bias identified for solar irradiance data across Africa.
  • 5-20% reduction in lifetime solar energy savings for businesses.
  • 1-2% decrease in IRR for project developers from overestimated asset productivity.

Declining solar equipment costs continue to drive African businesses toward solar energy solutions. Solar irradiation is the measurement of how much sunlight shines in each location, and because irradiation determines how much electricity a solar array will produce, it is a key design factor for solar buyers, installers, and investors.

In their latest report, CrossBoundary, discusses why the current methods the solar industry uses for estimating solar production across the continent are unreliable and what can be done to address this.

Link to the full report HERE 

Author: Bryan Groenendaal


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Green Building Africa promotes the need for net carbon zero buildings and cities in Africa. We are fiercely independent and encourage outlying thinkers to contribute to the #netcarbonzero movement. Climate change is upon us and now is the time to react in a more diverse and broader approach to sustainability in the built environment. We challenge architects, property developers, urban planners, renewable energy professionals and green building specialists. We also challenge the funding houses and regulators and the role they play in facilitating investment into green projects. Lastly, we explore and investigate new technology and real-time data to speed up the journey in realising a net carbon zero environment for our children.

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