Several states have Community Choice Aggregation (CCA) laws that allow local governments to pool their community’s electricity need in order to purchase power on their behalf.  While savings is not always guaranteed, many municipalities are able to obtain discounted electricity prices. You’ll have to check with your state regulatory commission. You can get started by clicking on your state in this map.
The U.S. Energy Information Administration (EIA) explains how the United States generated about 13% of its electricity through green energy sources this past year. Specifically, Fort Hood is looking to create renewable energy initiatives around the base to improve its energy efficiency. More than three years ago, Fort Hood completed its solar field that consists of approximately 3,000 panels. Over the next year, the military base is hoping to introduce wind power installations too.
Since the 1990s, many regions have opened up the generation and distribution of electric power to provide a more competitive electricity market. While such markets can be abusively manipulated with consequent adverse price and reliability impact to consumers, generally competitive production of electrical energy leads to worthwhile improvements in efficiency. However, transmission and distribution are harder problems since returns on investment are not as easy to find.