Category Nuances for solar_power:

• natural,
• cheap,
• free,
• renewable,
• friendly,
• external,
• exotic,
• basic,
• cleaner,
• large,
• clean,
• sufficient,
• alternative,
• electric,
• innovative,

Simple Categories for solar_power:

• energy,
• sector,
• power,
• form,
• structure,
• system,
• electricity,
• measure,
• thing,