What happens to the suns energy: If we have solar paneled houses,the suns energy will be more useful than burning fossil fuels because we will not be contaminating the earth . The sun gives us life by the heat and light. Without the suns energy we probably wouldn't be a live and neither would anything else on earth. Without sun everything would be all dark and it would be cold all the time. When the suns energy gets into the earths's atmosphere, it adds heat and everything also reflects and absorbs differently so that's why if you're wearing a black shirt it gets more heat than a white shirt because the absorb differently.The suns energy also determines if forests, lakes, oceans, and deserts are going to be hot or cold.