Question

why are solar plane so expensive

Answer 1

the amount of power delivered by sunshine is a well known number. If you ignore clouds, and average over day and night, it comes to about 250 Watts delivered to every square meter of land. This number, 250 Watts/square meter is how much power we, sitting here on earth, can extract directly from the sun.

Put the two numbers together, and we get 250 Watts/square meter × 200 square meters = 50,000 Watts. This is the maximum amount of power that this airplane can theoretically capture from the sun, given its wingspan.




that's why it is expensive

Answer 2

hey mate here is your answer

While the cost to install solar systems is falling, the actual cost of generating power is decreasing as well. According to the International Renewable Energy Agency (IRENA), photovoltaic solar energy costs roughly $.10 per kilowatt hour. Producing the same amount of energy with fossil fuels ranges from $.05 to $.17

hope it will help you

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