Question about Power and Water (Eco Lifestyles)

Could be. I had this NAP affect my sims once, and since they were living in an apartment they couldn't place a solar panel, and they had no fuel for the generator. Eventually they went out for dinner and showered at the community market. It was a change of gameplay, reminded me of the power and water cuts during the communist regime in my country. ? Why use those NAPs if you're going to be self sufficient?