Join us April 24th for a presentation and discussion on:  Power Distribution Systems with Integrated Energy Storage Systems Speaker:  Mark Baldassari, Director, Codes and Standards at Enphase Cost:  Members $15           Non-Members $25 Date:  April 24, 2024, 6:00 to 8:30 PM Place: Santa Clara University, 500 El Camino Real, Santa Clara 95053 SCDI Heafey Bldg., Rm TBD Agenda: 6:00                Check in, Meet and Greet, optional SCU Latimer Energy Lab Tour 6:30                Dinner buffet 7:00                Talk 7:45                Q&A Registration required by April 20: Register now About the talk: Installing Energy Storage Systems (ESS), Photovoltaic (PV) and Electric Vehicle (EV) equipment into power distribution systems can be complicated and expensive. However, Power Control Systems (PCS) introduced into the 2020 National Electrical Code (NEC Article 705) now allow more ESS + PV connected power to new or existing services while minimizing bus sizes, thus making retrofits easier and optimizing new installations.  Also, UL3141 (new in 2024) and UL1741 are safety and performance standards which are used to certify PCSs, smart inverters, converters, and the interconnection of EV and Distributed Energy Resources (DERs) in the system. This presentation offers a brief review of NEC 705, and the PCS which meets UL listing requirements.  Though applicable to power systems in general, the presentation offers a residential home as an application example of the value of a PCS.  The presentation discusses how it affects busbar loading and offers a way to integrate an ESS into existing or new systems. In summary, the PCS, and associated standards make it easier for engineers and installers to maximize the use of multiple energy inputs for efficiency and cost, while ensuring safety and reliability. The presentation covers the following: Connecting a DER to premises wiring – NEC Use Cases Issues with NEC 705.12 Introducing Power Control System Feeder Function Busbar Function Power Import/Export Function Supply Side Connections Branch Circuit Function New Standard UL 3141 Full Feature PCS System PCS and EVs PCS Links and Information

Installing Energy Storage Systems (ESS), Photovoltaic (PV) and Electric Vehicle (EV) equipment into power distribution systems can be complicated and expensive. However, Power Control Systems (PCS) introduced into the 2020 National Electrical Code (NEC Article 705) now allow more ESS + PV connected power to new or existing services while minimizing bus sizes, thus making retrofits easier and optimizing new installations. Also, UL3141 (new in 2024) and UL1741 are safety and performance standards which are used to certify PCSs, smart inverters, converters, and the interconnection of EV and Distributed Energy Resources (DERs) in the system. This presentation offers a brief review of NEC 705, and the PCS which meets UL listing requirements. Though applicable to power systems in general, the presentation offers a residential home as an application example of the value of a PCS. The presentation discusses how it affects busbar loading and offers a way to integrate an ESS into existing or new systems. In summary, the PCS, and associated standards make it easier for engineers and installers to maximize the use of multiple energy inputs for efficiency and cost, while ensuring safety and reliability. Parking Please use the main entrance (Palm Drive) from 500 El Camino Real. After you pass the guard house you will take a left toward the Visitor Parking lot. We plan to have 1-2 students or chapter members stationed at the Visitor Lot to provide parking passes to registered attendees from roughly 5:45 to 6:15 pm. After that you will need to pick up a parking pass at the Security Office which is behind the Parking garage. Parking is free for 2 hours. You are visiting the IEEE talk hosted by Prof. Maryam Khanbaghi in Heafey 129. See flyer for parking map. · · Co-sponsored by: Santa Clara University Speaker(s): Mark Agenda: Agenda: Room at Heafey should be open by 5:45 PM. Pick up parking pass from volunteer near Visitor Parking. 6:00 Check in, Meet and Greet, Latimer Energy Lab Tour 6:30 Dinner buffet 7:00 Talk 8:00 Q&A Room: SCDI Heafey room 129, Bldg: Sobrato Campus for Discovery and Innovation (SCDI), 500 El Camino Real, Santa Clara, California, United States, 95053