You see when we talk about abundant natural energy, we talk about wind, water and the solar power. You see we’ve explored the means of getting energy from the water and the wind and those had proven effective but costly you’d agree with me, building a dam to get energy from water, having lots of windmills to get energy from the wind . But come to think of solar energy, it is free of charge only needs the panel and the energy storages compared to its counterparts, wind and water. Thanks for throwing light on this