This design has been executed with full OSHPD/HCAI engagement and approval. Perhaps most importantly, it has led to direct changes in the approach to supplementary energy resources for emergency power at hospitals that is expected to be reflected formally in the upcoming code cycle. This will be the first Renewable Energy Project in California to incorporate solar, fuel cell, batteries, and existing diesels in microgrid design and operation. This will also be the first system allowed to supplement existing diesel back up and significantly reduce fossil fuel consumption. In terms of revenue, this will be the first microgrid connected to a hospital to offer the option of ancillary utility services. The solar, batteries, and fuel cell will be interconnected directly into the hospital emergency bus and, therefore able to provide power to the entire emergency system.