Introducing engineering: Figure 90 A photovoltaic array of 4400 panels on Blackfriars station railway bridge in London; it produces about 900 000 kWh of electrical energy each year

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Introducing engineering

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Figure 90 A photovoltaic array of 4400 panels on Blackfriars station railway bridge in London; it produces about 900 000 kWh of electrical energy each year

5.5 Electricity from sunlight

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