, if you take the total area that a nuke plant takes up, and put down solar panels, it will generate more electricity than the nuke plant
What a bunch of horse shit. It would take 100 square kilometers to make 2000 MW with solar panels. PLUS they can’t produce jack shit at night or when cloudy.
100 km^2 of solar would produce about 5 GW of electricity. Ever hear of the many methods of grid scale storage?
"US electricity consumption is about 425 GW on average
The EIA give a figure of
3,725,101 thousand Megawatt Hours of total electricity sales in 2013, i.e. 3725 TWh in a year. That’s equivalent to 425 GW.
The area shown is 10,000 km2 in NW Texas
Looking at the map presented by Elon Musk, and comparing it with a scale map of the US, leads me to an estimate that the square, in North-West Texas, is about 100km along the side, and thus has a total surface area of 100km x 100km, i.e. 10,000 km2
Average PV yield in NW Texas is about 21%
The USA National Renewable Energy Lab (NREL) provides an online calculator for PV yields, called
PVWatts. I looked at the data for location TMY2 Amarillo, TX, which seems close to the area in question. A 1 kW system would generate 1,838 kWh per year (on a 10o slope facing south), which is equivalent to 210W; that gives a ratio of generated power to capacity of 21%.
The highest efficiency we currently get from solar modules is about 24%
Table 2 of Green et al’s Solar cell efficiency tables (Version 45) gives the best PV module as being 24% efficient. And that translates to installed capacity of 0.24 GW/km2, given the standard measure of 1 full sun being equal to 1 kW/m2.
Calculation
10,000 km2 x 0.24 GW/km2 x 21% = 500 GW
Which is more than current US electricity consumption of 425 GW.
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