I think, solar energy is the best source of energy because it is cheap and it protects nature. Solar panels are expensive,but if you buy it,
it is cheap. Solar panels are shaped like rows of rectangle.
It is blue with silver or gray lines.

I think, water energy is the best source of energy, too. Water energy
is cheap and strong. It doesn't harm nature because it is made from water. I think, lightning energy is the best a good source of energy. Lightning energy is the strongest energy. It can light a light bulb for almost 1 year when you once get the lightning energy electricity.

I think, wind energy is also the best a good source of energy. It is made by through windmills. Windmills are shaped like a giant cross. The cross spins because winds blow and they push the cross. And when it spins,it makes energy.

Coal energy is made from burning up coals. It harms nature and it is expensive.But many people use coal energy,so I like it. I think man-made energy is the best, good, too. Man-made energy is made in factories, so it harms nature,but people use them,too. There are many kinds of energies. Some are strong,some are weak. But, they have one thing in common.
It is that they help people in their lives!