San Diego Community Power Board of Directors
April 27, 2023

Public Discussion—SDCP BOD-- April 27, 2023
• Study to Determine the Benefits of Repurposed
Battery Modules
• List of Tailwind Studies
Dave Peterson
San Diego Resident
[email protected]
Study and Use “Repurposed” EV Battery Modules
• The use of repurposed EV battery modules has been proposed to reduce Hybrid farm battery cost
• Goal: Extend EV battery module life another 10 years? • If the saving are sufficient, procurement of Hybrid farms without subsidies might be feasible (A Long Shot) • Study partners should include Arevon and, most importantly, Tesla • Are EV and Megapac Modules interchangeable? If the are, Let’s lead the pack • Include a few (12?) Demonstration Modules (from Infant Mortality, collisions?) in a Vikings Megapack?
• Talk to your NREL/CALEPA counterparts about interfacing multiple manufacturers • Develop the strategy for using alternative repurposed modules in Hybrid farms • https://calepa.ca.gov/wp-content/uploads/sites/6/2022/05/2022_AB- 2832_Lithium-Ion-Car-Battery-Recycling-Advisory-Goup-Final-Report.pdf 04/27/2023 2
List of Important Tailwind Studies
• Study how to fund MUD solar roofs with a few charge ports (4-21) • Study and Use Repurposed Battery Modules
• Study the use of monthly PVGIS and 2022/2023 CAISO daily data to predict Sept and Winter daily overgeneration margins for Vikings (and JVR?)
• PVGIS tool uses US NREL 20-year data base and provides data downloads • Is one day a sufficient market look ahead?
• Study a plan to “Lock in” a Geothermal site— BOD next month 4/27/2023 3