The best part of energy efficiency is that it’s relatively simple and easier to afford than most other popularized renewable energies. Energy efficiency can be achieved by replacing light bulbs, using more efficient machinery (like refrigerators, washing machines, dryers, etc.), and using machinery more productively. All of the energy that is not produced from doing a few of the things listed above produces negawatts. In commercial buildings, energy that’s not used can be sold back through a demand response program, to help generate extra revenue.
If you’re really interested in helping saving the environment, along with money, then energy efficiency should be your first choice of energy. It will help drastically cut your energy demands, making any renewable energy sources that more efficient for you. To see how energy efficiency really affects you, check out the graph below!