Better solar cells mean more energy from the sun
6 May 2016

By TARA DHAKAL | Global demand for energy is increasing by the hour as developing countries move toward industrialisation.
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Solar panels on a Walmart roof, Mountain View, California. |
Experts estimate that by the year 2050, worldwide demand for electricity may reach 30 terawatts (TW). For perspective, one terawatt is roughly equal to the power of 1.3 billion horses.
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