Earth & climate · the experiment
Place the solar city
The same city, its panels and its electric cars, moved under 5,000 climates. Four questions, from beginner to expert, to check what really makes rooftop sunshine work.
1 · Explain Cairo
Beginner
Why does the reference city stay near 80% self-sufficiency all year in Cairo?
2 · Plug in the cars
With panels alone, the median self-sufficiency of the 5,000 locations is 44.8%. The car batteries raise it by 21.1 points.
Intermediate
What is the median self-sufficiency with the cars?
3 · Double the batteries
In representative cities, car discharge covers 10.8 to 31.4% of daily demand with 40-kWh batteries, and 12.2 to 43.9% with 80 kWh.
Expert
What happens to that coverage when the battery doubles?
4 · Get through winter in Novosibirsk
In Novosibirsk, self-sufficiency falls to 20 to 30% in winter and climbs to about 90% in summer.
Expert
Why can't the car batteries rescue the winter?
City placed
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