Systems that require backup power solutions usually have small battery backups or generators. Small backup systems traditionally rely on batteries for energy storage while larger systems may use generators or more uncommon systems such as flywheels, superconducting magnetic energy storage, or fuel cells for larger installations. While there can be a need for a battery based solution, batteries have a limited life span. Their life is based on the number of discharges and charges they undergo. Battery installations are difficult due to the long list of regulations and standards they must abide. Their installations must comply with local and national health and safety standards. Environmental regulations, which mainly affect larger installations, can include requirements for ventilation, handling, and disposal of batteries. Flywheels, for example, require an extreme amount of maintenance. Also, systems that use generator sets and fuel cells have poor turn-on response and are not very reliable.