Storage Arrays Low Cost, Reliable Resource Adequacy September 2013 - IEP 174 MW and growing… A fleet of cost competitive, reliable storage resources Customers: 40 MW Cochrane 2014 Online Date 24 MW Los Andes 2009 40 MW Angamos 2012 AES Carina @ IPL World’s first grid Lithium-ion battery Feb 2008 64 MW Laurel Mtn. 2011 40 MW Tait Sep 2013 2 4MW Carina Indiana Technical Validation 2008 24 MW Los Andes 24 MW, Chile Spinning Reserve (CDEC-SING) 2009 Angamos 40MW Battery Resource in Chile “By crafting and completing such an innovative power plant that maintains a high level of environmental performance, AES has continued its dedication to excellence in service and performance.” Thomas R. Kuhn, EEI President © 2013 The AES Corporation All Rights Reserved Angamos 40MW resource quick, precise response to event on 4/9/12 to maintain grid Angamos BESS Response Angamos BESS responds with rapid increase of output from 0MW to 20MW Autonomous response according to programmed profile Output sustained until stability restored Thermal Units Thermal unit responds with 4MW burst, then output drops off Gradually ramps up in oscillating manner to 7MW output increase over 4 minutes Source: CDEC-SING, AES © 2013 The AES Corporation All Rights Reserved 64 MW Laurel Mountain Battery Resource in West Virginia, USA 7 64 MW Laurel Mountain battery resource operating commercially in PJM since 2011. • • • • Operating range of +32MW to -32MW Precise response to 4 second AGC Ramp rate mitigation Economic, daily bid in PJM power market © 2013 The AES Corporation All Rights Reserved Battery arrays are a dual resource generation + controllable load – with no minimum generation. 9 Battery Arrays have a superior architecture for reliability than large unit power plant resources. 100% 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 100MW unit with one module unavailable Battery Arrays EAF Mean EAF TopQ Source: Navigant, AES, Traditional Power Plants 10 40 MW Tait 40 MW, U.S. Regulation (PJM-Ohio) 2013