"How does our solar system keep its pants up?  With an asteroid belt."

What do you call a solar powered keyboard?  A photosynthesiser.

“A surge of electricity walks into a bar. The barman says, “why the long phase?”

"What do wind turbines talk about? Nothing special. They just shoot the breeze."

“A sweater I bought was picking up static electricity. So, I returned it to the store. They gave me another one free of charge.”