Fossil fuel, coal and nuclear energy driven power plants not only are a major cause of greenhouse gas emissions, they are also quite inefficient. A lot of power—up to 20 percent—is lost in the long distance distribution from these big plants to the end user. This is why microgrids are quickly becoming more popular. Microgrids, are townships, communities, or maybe even a city, that operate on their own small power grid. Microgrids allow users to easily add renewable sources like wind and solar and be energy independent and more efficient.