Overview of NRG Energy and NRG EV Services

Overview of NRG Energy and NRG EV Services 2011 NRG Confidential 1

NRG Overview NRG Wholesale Fuel Supply Fuel Transportation Power Generation NRG Retail Transmission Distribution NRG Wholesale Generation totaling ~25, 000 MW Retail (Customer) NRG retail: Serves 1. 8 million customers Company Facts: > Added to the S&P 500 Index (2010) > Fortune 500 – Ranked 12 th Fastest Growing Company (2009) > Fortune 500 – Ranked in top 10% for “Best Investment” (2008) > Platt’s 2007 Recipient of Energy Company and Industry Leader of the Year > Stock Listing: NRG (NYSE) with ~$6 billion market cap > Employees: ~4, 300 > Generating Assets: ~25, 000 MW, primarily in four domestic regions > Retail Customers: ~1. 8 million in the Texas and New York competitive markets NRG is a national wholesale and retail power company. 2011 NRG Confidential 2

NRG Strategy Low Carbon Generation “Our strategy [is] to produce and deliver clean, zero-emissions products and services to America’s growing number of clean energy consumers” David Crane, October 2010 Ivanpah Solar Project Press Release Smart Grid Services Electric Vehicle Ecosystems EVs are a key element of NRG’s clean energy strategy. 2011 NRG Confidential 3

Electric Vehicles: Compelling Benefits… … across multiple stakeholders 1. Consumer: > Exciting > Convenient > Sustainable > Affordable 2. Country: > Energy security > Environmental Gain > Economic growth Auto industry plans align with federal objectives to put 1 M EVs on U. S. roads by 2015 3. Company: > Economic growth > Brand differentiation > Business opportunities 2011 NRG Confidential 4

e. Vgo: Addressing EV Adoption Barriers Range Anxiety Solutions Metropolitan-wide network of charging stations equipped with DC fast chargers Workplace charging programs that can augment home charging Upfront Cost Upfront cost of equipment and install is amortized into monthly fee with tax benefits included Cost-effective options for placing primary charger at workplace or residential community Cost of Ownership Fixed monthly cost across the expected ownership period for hardware, install, network access and electricity NRG offers are deigned to address key ownership barriers. 2011 NRG Confidential

NRG EV Services Programs Consumer Offers • Home Plan • Mobile Plan • Complete Plan Range Confidence Zero Upfront Cost Predictable Cost e. Vgo “Jump Start” • Public Network • Auto Relationships • Power Partners • Marketing/Sales • Customer Support • Operations Business Offers • Work Place • Community • Retail • Fleets Brand/Differentiation Low Capex/Oppty Cost Low Tech Risk Traffic/revenue NRG is partnering with auto and power companies to develop a sustainable charging and fueling ecosystem. 2011 NRG Confidential 6

EV Fueling Model • Home: Fueling in your overnight garage to leave with 100 miles of range each AM • Destination: Fueling at work location to augment or even replace home charging • Pathway: Fast re-fueling across a metro area to increase range confidence • Convenience: Fueling “top-off” at retail locations during short stays Simple and convenient approach for fueling a commuter car. 2011 NRG Confidential 7

EV Fueling Model Charging Type: Use Case Unit Locations Home Destination Pathway Convenience Long-Stay Refill while you sleep Long-Stay Refill while you work Short-Stay Refill to get back on road Short-Stay Top-Off while you shop/eat Private Garage Community Parking Workplace Garage Hotel/Airport Parking Metro/Train Station Quick-Stop On-Freeway Retail Shopping Restaurants Grocery Level 2 EVSE 240 V (at 30 A) Level 3 DC Fast 3 Phase 480 V (at 68 A) Level 2 Commercial (240 V at 30 A) Installed Cost $0 -3, 000 $2, 000 -$5, 000 $50, 000+ $4, 000 -$8, 000 Charge Speed 12 -24 mi/hr 100 -200 mi/hr 12 -24 mi/hr Unit Type 2011 NRG Confidential 8

Consumer Insights EV Driving Behavior Before quick charger addition…. October 2007 After quick charger addition…. July 2008 After Quick Charger Located Batteries were used less than 50% Batteries were more fully utilized Pathway charging enables confidence to fully utilize EV range 2011 NRG Confidential 9

Current Product Offerings • • • Complete Plan: 50% of customers Mobile Plan: 20% of customers Home Plan: 30% of customers • 83% of EV customers intend to lease their vehicle 2011 NRG Confidential 10

EV Purchase Behavior Insights After seeing the an EV together with the e. Vgo program: q 63% of respondents indicated they would definitely or probably consider an EV for their next auto q 58% of respondents indicated that learning about e. Vgo increased their likelihood to purchase an EV 16% of respondents said they would not have considered an EV before learning about e. Vgo but now they will 42% of respondents indicated they were already considering an EV and learning about e. Vgo increases their likelihood to purchase an EV q 69% of respondents indicated that if they purchased an EV they would definitely or probably purchase an e. Vgo charging plan The e. Vgo Complete plan raises consideration and purchase likelihood of an EV. 2011 NRG Confidential 11

Business Offers: The “Other” Work Place Solution Single Charger Install Access issues Policy issues Low visibility Low utilization • • Expensive upfront capital costs One parking spot with a charging station Sits visible and unused for some time Opportunity cost of lost parking • • Policy issues of employee benefits Potential imputed income issues No promotion or expansion plan Risk of parking space retaliation Single charger workplace install is a high-cost, high-risk solution that does not scale. 2011 NRG Confidential 12

Business Offers: REV Work Place Destination Charging REV Work Place READY READY ved Reser • • Simple Scale-able Visible Company funds only the electric make-ready of the facility Employees see the available EV opportunity everyday Subscription comes with the benefit of non-prime, reserved spot Parking spaces available for all to use while adoption ramps-up Just in time deployment of charging infrastructure with subscriber sign-up Company does not own, install, maintain, or support the chargers Energy consumed by employee is rebated back to company electric bill Company is not funding the fueling of personal automobiles 2011 NRG Confidential 13

National Foothold Strategy California Stats • 37 million people • 31 million cars • 60, 000 Square Miles Northeast Stats • 58 million people • 45 million cars • 100, 000 Square Midwest Stats • 27 million people • 23 million cars • 90, 000 Square Miles Texas • 24 million people • 20 million cars • 75, 000 Square Miles Florida Stats • 17 million people • 14 million cars • 25, 000 Square Miles NRG EV Services has national scope with a regional focus 2011 NRG Confidential 14

Texas EV Ecosystems Culture > High car ownership levels with wide variety > Compatible commute patterns 2 275 Miles Infrastructure 240 Miles 4 1 3 200 Miles Source: Tx. DOT > Owned homes with garages > Power distribution and smart meters > Under-utilized off-peak assets > Strong night wind generation Environment > Non-attainment driven by tailpipe emissions > EV compatible climate and geography Energy Leadership > Leader of energy innovation > Pro-business climate > Competitive markets to drive innovation Texas “triangle” is a large and very attractive regional ecosystem 2011 NRG Confidential 15

The e. Vgo Freedom Network: Houston Charge Zones e. Vgo Freedom Stations will provide range confidence across the greater metropolitan areas of the cities served. e. Vgo is the nation’s first commercially funded EV charging network. e. Vgo “user pays” model utilizes no taxpayer or ratepayer capital in delivering services. 2011 NRG Confidential 16

The e. Vgo Freedom Network: North Texas Charge Zones 2011 NRG Confidential 17

The e. Vgo Freedom Network: Charge Station Rendering Includes both Level 2 and DC chargers Designed to expand to multiple DC units Design includes customer support and asset management system Located for easy access, power availability, and retail engagement 2011 NRG Confidential 18