College - Author 1

College of Engineering

Department - Author 1

Electrical Engineering Department

Degree Name - Author 1

BS in Electrical Engineering



Primary Advisor

Ali Dehghan Banadaki


The storage of energy from renewable sources such as photovoltaic based systems is a growing market, with 36 MWh of storage installed in Q1 of 2018. A report from EnergySage earlier this year states that in 2017, 74% of residential solar owners were also interested in energy storage systems. Mainstream systems like Tesla’s Powerwall are competing with other lithium-ion based storage systems from a wide number of providers on the market today. Short term and long term data collection on a system like this could be useful in designing future systems which perform better than the current market offerings. This project seeks to install and operate the Tabuchi EIBS that the Cal Poly Electrical Engineering department currently owns. EIBS stands for Eco-Intelligent Battery System, and it is meant to be used in conjunction with a photovoltaic array in a residence. This kind of system is parallel to a source like a Tesla Powerwall and uses two 10 kWh Li-Ion batteries. As of right now, the system is being rolled between room 102 and room 146 of building 20, where it is assembled and ready to be energized. This team would like to assemble, mount, and integrate this system into the EE building micro-grid allowing for future students to test the storage and economic benefit of this system while connected to either the grid or a photovoltaic array. Our first priority was mounting the system on a mobile platform to enable flexible usage wherever its power would be most beneficial. After installation, time permitting, we wish to measure characteristics such as battery life, charge time, switching time, maximum throughput and how efficiently the batteries charge and discharge the energy to be stored.