What is the purpose of these panels?
a. They are solar thermal panels used for pre-heating home water using energy from the sun.
b. They are photovoltaic panels. They convert sunlight into electricity.
c. They are part of an air-heating system for solar space heating of the home interior.
d. They use energy from sunlight to convert oxygen into hydrogen for a hydrogen-fueled car. They feed a storage tank buried under the garage.
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