Roll-up solar panels?
At the festival I volunteer for, one person has three roll-up solar panels, about 18 inches in width, about 10-15 feet long. They are staked into the ground. Even though because they are not angle...
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Unisolar used to make them but they went out of business long ago. You may still be able to find some on the used market. They are often called solar laminates.
