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Photovoltaic Technologies Aim for Higher Efficiency Ratings

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As global solar capacity increases, new materials and photovoltaic designs could deliver greater efficiency than conventional silicon cells, at a reasonable cost.

MICHAEL EISENSTEIN, SCIENCE WRITER

In a time of growing concern about climate change and the high cost of humanity’s carbon footprint, there are glimmers of hope. A global boom in sustainable energy investment is underway. The Renewable Energy Policy Network for the 21st Century (REN21) reports that in 2016, nearly a fifth of the world’s energy was derived from renewable sources. Solar energy is seeing particularly rapid growth. Between 2012 and 2017, global solar capacity more than quadrupled to a total of 402 gigawatts. “I figure that by 2022, a third of our electricity in Australia is going to come...Read full article

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