Thursday, January 16, 2020
The Predicted Global Electricity Grid
Gridfinder is a new interactive map which visualizes the predicted global electricity grid network based on night-light satellite imagery. The map predicts the existence of electricity network lines using evidence from night-time views of the Earth from space.
10% of the world's population does not have access to a reliable electricity supply. It is hoped that Gridfinder can be used to identify populations with poor access to electricity networks in order to help improve essential infrastructure and provide affordable and reliable energy.
The Gridfinder map shows the locations of known electricity lines using data from OpenStreetMap. The map also shows predicted electricity supply lines based on where lights can be seen at night from orbiting satellites. To predict the existence of these previously unmapped electricity supply lines the level of night-time light in satellite imagery is used to see where locations are most likely to be producing light from electricity. Where there is enough light to have been produced by an electricity network the map connects this to known electricity networks using an algorithm which follows roads and already known distribution lines.
You can read more about how night-time satellite imagery has been used to predict the world's electricity network on the research paper Predictive mapping of the global power system using open data.
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