Until recently, if you needed to bring substantial amounts of power to an island or remote site, you had little choice but to use large diesel generators. If you have been in this circumstance, you already know the drawbacks. Diesel generators may have proved reliable, but they are loud, dirty, require regular maintenance, and a ton of expensive fuel – which has to be transported in by diesel propelled vehicles. Containerized li ion battery energy storage systems provide a stable grid power source. These MW scale storage systems efficiently use all the power generated from renewable sources like solar and wind, harvesting every electron during peak production hours, and dispersing as demand is called for.