Let the sun help you up those hills.
There are a number of bike designs which incorporate a solar powered motor – see links below.
Another option is the pedal-charged battery, which powers the motor which powers the bike.
Check out these sites:
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Our Our fastest solar ovenBake, roast or steam a meal for two people in minutes, reaching up to 550°F (290°C). GoSun Sport sets the bar for portable solar stoves.
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