Sandbar Solar & Electric Headquarters Building (Santa Cruz, California)

In 2019 Sandbar Solar & Electric built its new 11,500 square foot headquarters building.  Instead of waiting several years for PG&E to establish a new electrical service at the site Sandbar designed, engineered and installed a stand-alone microgrid made up of 57-Kilowatts of solar, 154 kWh of energy storage, and a 35-kW generator.  The solar and batteries satisfy the building’s energy needs 96.5% of the year while the generator runs just 3.5% of the time or approximately 300 hours.  The Sandbar HQ has commercial-grade, 480V, 3-phase power and has remained fully operational through all grid power outages that have affected its local area since the building’s completion in December 2019. 

System size:

•             57 kW DC Solar

•             154 kWh ESS Capacity 

Installation type:

Pitched Metal Roof, Mechanically-Attached, Flush-Mounted Racking

Solar/Battery Inverters:

Ideal Power: 30 kW, DC-coupled Inverters


  • Avalon 30kWh Batteries
  • Blue Planet 64kWh Battery

About the Author

Scott is the founder of Sandbar Solar & Electric. With a Bachelor’s Degree in Economics from UC San Diego, Scott has an NABCEP certification, and has lectured on and taught many high-tech construction practices and solar PV technical concepts to education institutions, including Stanford University and state-recognized electrician apprenticeship programs. Scott enjoys sharing his knowledge of the evolving renewable energy space and making a difference in his community.