1. NRG Energy and NRG EV Services
Overview of
NRG Energy and NRG EV Services

2. NRG is a national wholesale and retail power company.
NRG Overview
NRG Wholesale
NRG Retail
Fuel Supply
Fuel Transportation
Power Generation
Transmission
Distribution
Retail (Customer)
NRG Wholesale Generation totaling
~25,000 MW
NRG retail: Serves 1.8 million customers
Company Facts:
> Added to the S&P 500 Index (2010)
> Fortune 500 – Ranked 12th 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
No sovereign territory or rate-based assets
Compete daily to sell our services to wholesale and retail customers
NRG is a national wholesale and retail power company.

3. EVs are a key element of NRG’s clean energy strategy.
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
NRG strategy is to “move clean energy forward” but delivering clean, zero-emission services to customers
We believe this requires a mix of wholesale and retail facing skills
Specifically, we see this strategy playing out in three areas: Low Carbo Generation, Smart Grid Service, and EV Ecosystems
Smart Grid Services
Electric Vehicle
Ecosystems
EVs are a key element of NRG’s clean energy strategy. 3

4. Electric Vehicles: Compelling Benefits…
… across multiple stakeholders
1. Consumer: > Exciting > Convenient > Sustainable > Affordable
Auto industry plans align with federal objectives to put 1M EVs on U.S. roads by 2015
2. Country: > Energy security > Environmental Gain > Economic growth
EVs hold strong, multi-faceted benefits to customer, country, and commercial companies
3. Company: > Economic growth > Brand differentiation > Business opportunities 4

5. eVgo: Addressing EV Adoption Barriers
Solutions
Range Anxiety
Upfront Cost
Cost of Ownership
Metropolitan-wide network of charging stations equipped with DC fast chargers
Workplace charging programs that can augment home charging
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
Fixed monthly cost across the expected ownership period for hardware, install, network access and electricity
NRG offers are deigned to address key ownership barriers.

6. NRG EV Services Programs
REV
Consumer Offers
Home Plan
Mobile Plan
Complete Plan
Business Offers
Work Place
Community
Retail
Fleets
eVgo “Jump Start”
Public Network
Auto Relationships
Power Partners
Marketing/Sales
Customer Support
Operations
Range Confidence Zero Upfront Cost
Predictable Cost
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. 6

7. Simple and convenient approach for fueling a commuter car.
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. 7

8. EV Fueling Model Home Destination Pathway Convenience Charging Type:
Use Case
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
Unit Locations
Private Garage
Community Parking
Workplace Garage Hotel/Airport Parking Metro/Train Station
Quick-Stop On-Freeway Retail
Shopping Restaurants Grocery
Unit Type
Level 2 EVSE 240V (at 30A)
Level 2 EVSE
240V (at 30A)
Level 3 DC Fast 3 Phase 480V (at 68A)
Level 2 Commercial (240V at 30A)
This slide outlines the various charging use cases that we have built the offers upon > The offers align with the various models for EV charging with focus on both the driver and the host
> Let’s look specifically at the Fueling Bundle offer for consumer EV drivers
Installed Cost
$0-3,000
$2,000-$5,000
$50,000+
$4,000-$8,000
Charge Speed
12-24 mi/hr
12-24 mi/hr
mi/hr
12-24 mi/hr 8 8

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

10. 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 10 10

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

12. 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. 12

13. Business Offers: REV Work Place Destination Charging
READY
READY
Reserved
REV Work Place
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 13

14. NRG EV Services has national scope with a regional focus
National Foothold Strategy
Northeast Stats
58 million people
45 million cars
100,000 Square Miles
Midwest Stats
27 million people
23 million cars
90,000 Square Miles
California Stats
37 million people
31 million cars
60,000 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 14 14

15. Texas “triangle” is a large and very attractive regional ecosystem
Texas EV Ecosystems
Culture > High car ownership levels with wide variety > Compatible commute patterns
Infrastructure > 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 2
275 Miles
240 Miles 4 3 1
200 Miles
Source: TxDOT
Texas “triangle” is a large and very attractive regional ecosystem

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

17. The eVgo Freedom Network: North Texas Charge Zones17

18. The eVgo 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 18