The view that promoting the use of energy storage systems produces environmentally attractive results has been standard in policy circles. Policymakers have been enthusiastic about energy storage systems primarily because of their belief that cheaper and more prevalent storage options could help facilitate the integration of increased renewable energy generation and speed up the transition to a low-carbon grid. This beneficial outcome, however, is not guaranteed.

There is a movement among companies to use more renewable energy and less energy obtained from fossil fuels. Some are pledging to go “100% renewable,” while many others have set goals to rely on substantial percentages of renewable energy. In addition to setting these goals, many companies report on how much renewable energy they currently use, and convey this information in annual sustainability reports or in publicly issued statements and news releases.