1. Energy Storage: Existing Deployments & Applications
California PUC Workshop on Procurement Policy Options
January San Francisco

2. AES operates power facilities in 27 countries.
Our mission is to improve lives by providing safe, reliable and sustainable energy solutions in every market we serve.
Holding company with investments in generation and utility businesses – non-recourse business model
Operations in 29 countries managing 38,820 MW generation capacity and 14 utilities that serve 11 million people
Over 3,000 MW in construction
27,000
8,452 MW
33,814 MW
$17.2 Billion
Global workforce
Capacity at AES utility businesses
Capacity at AES generation businesses
2011 Revenue
AES Operations
AES Headquarters
Key

3. 98 MW Laurel Mountain Wind Project
It’s here today: Commercial, battery-based energy storage is performing today in power markets.
Chile
98 MW Laurel Mountain Wind Project
with 32 MW BESS
Serving PJM Market
New York
Member:
Chile 3

4. AES Laurel Mountain 32MW energy storage operating commercially in PJM since 2011.
Economic: Least cost resource clears daily in PJM regulation market
Operating range of +32MW to -32MW
32MW battery replaces over 80MW of regulation from traditional resources
Precise response to 4 second AGC
© 2012 The AES Corporation All Rights Reserved
Copyright The AES Corporation 2012

5. Energy storage is least cost for flexibility – high availability, more MW around the clock.

6. Energy storage operating in Chile since 2009
Energy storage operating in Chile since Fast response improves customer reliability.
Angamos 20MW BESS
System Event on 4/9/12
Source: CDEC-SING, AES
© 2012 The AES Corporation All Rights Reserved
Copyright The AES Corporation 2012

7. Modular architecture drives high availability, performance similar to top thermal plants.
97% EAF
EAF = Equivalent Availability Factor
(Average MWs available/MWs nameplate)
Source: Navigant, AES,
© 2012 The AES Corporation All Rights Reserved
Copyright The AES Corporation 2012