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Environment
Renate Egan, Professor, UNSW Lead, Australian Centre of Advanced Photovoltaics, UNSW Sydney

You might think solar panels have been perfected – but we can still make them even better and cheaper

Andreas Gucklhorn/Unsplash, CC BY-SA

The cost of turning sunlight into electricity has fallen more than 90% over the last decade. Solar is now the cheapest form of newly built energy generation.

Job done? Not quite. Right now, solar works well at cost-competitive prices and can help us cut emissions significantly. But with less than 5% of the world’s electricity delivered by solar, we are just at the start.

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