CHILE CALIFORNIA COUNCIL Clean Energy Conference Ken Zagzebski

Addressing potential load shedding situations in Chile IMPACT ü ü Replaced oil and standby generation Savings of $37 M annually Instant response time Avoided load shedding 12 MW Energy Storage Array Los Andes, Atacama, Chile

Faster responding frequency regulation resource IMPACT ü Wind with added revenue from frequency regulation ü Environmental annual saving: ü 62, 000 t of CO 2 ü 329 t of SO 2 ü 97 t of NOx ü $20 M market savings annually utilizing our PJM battery storage fleet 32 MW Energy Storage Array Laurel Mountain, West Virginia

Mobile and geographically flexible IMPACT ü Mobility: The batteries in this picture are now in their third location ü Climate: Operating or under construction in deserts, mountains and tropical 20 MW Energy Storage Array* Dayton, Ohio *12 MW relocated to Puerto Rico to support recovery efforts post Hurricane Maria.

2 MW Advancion® Array Buckeye, Arizona Embedding storage in the distribution network for reliability IMPACT ü Support rooftop solar growth ü Manage local feeder reliability ü Alternative to substation upgrades

20 MW Advancion® Array Indianapolis, Indiana Frequency control to meet new transmission regulations IMPACT ü Support rooftop solar growth ü Manage local feeder reliability ü Alternative to substation upgrades

Rapidly deployable – contracted to COD in 8 months MPACT ü World’s largest battery providing peaking power and capacity (37. 5 MW x 4 hours = 150 MWh) ü Rapid deployment ü Competitive & cost effective ü Meets flexibility (duck curve) 37. 5 MW Advancion® Array Escondido, San Diego, California El Cajon, San Diego, California

World’s largest contracted energy storage project for local capacity (100 MW x 4 hours = 400 MWh) IMPACT ü Meets local capacity needs ü Competitive bid vs thermal peaker, cost effective ü Meets flexibility (duck curve) ü No water usage required 100 MW Alamitos Energy Center Long Beach, California

Storage + solar to solve peak energy demand in Hawaii IMPACT ü Provides 11% of system energy ü Allows greater solar / renewable penetration ü Replaces oil based generation 28 MW Solar + 100 MWh Storag Kauai, Hawaii

Solar + storage to meet interconnection capacity challenges in Massachusetts IMPACT ü Massachusetts has a 1. 6 GW renewable target ü Effectively expands grid capacity for renewables ü Meets diverse set of customer needs (C&I, Utility and Community solar)