The California Energy Commission has proposed a $2.8 million award to Robert Bosch to demonstrate a direct current, renewable-based microgrid. With this award, Bosch will demonstrate the effectiveness of its direct-current building-scale microgrid platform in an American Honda Motor parts distribution center. The project is designed to illustrate the viability and benefits of a commercial-scale DC building grid compared with conventional AC-based grid connected solar photovoltaic systems or microgrids.
The Bosch DC microgrid project will connect rooftop solar PV arrays to energy-efficient DC lighting, DC ventilation and DC energy storage systems on a 380-volt DC bus to form a DC building grid.
Bosch will use this project to demonstrate the feasibility and benefits of a commercial-scale DC building grid that integrates multiple advanced technologies to provide power to the loads on the DC grid, resilience during grid outages, increased energy efficiencies and renewable energy utilization. Once the project is installed and commissioned, performance data will be collected to validate the cost savings, energy efficiency gains and the capabilities of the advanced microgrid.
For the project, Bosch has partnered with Navigant Consulting and the California Lighting Technology Center at UC Davis. Additionally, Bosch will partner with a number of California-based companies, including Maxwell Technologies and Imergy Power Systems, for the complete technology supply chain.
Together, Bosch and its partners provided $1,790,095 in in-kind and matching funds to assist in the development, planning and execution of the project. Bosch plans to begin the project once the contract with the California Energy Commission is signed and conclude the project by February 2018.