Renewable Energy Value for Customers to Meet NV Energy Invests in Customers RenewableGenerations is an incentive program that helps customers offset the installation State’s Renewable Policy Goals costs of renewable energy systems. Program categories include residential, small business, schools, public buildings and agriculture. Galena III 14,000,000 SolarGenerations Geothermal Plant 14,000,000 installation Lyon County, Nev. at Boy Scouts of America , • Total projects completed/installed is more than 1,400 (includes solar photovoltaic, 12,000,000 12,000,000 RPS Requirement and Compliance Las Vegas solar hot water, wind and small hydro projects) • Total solar photovoltaic customer installed is 1,315 10,000,000 10,000,000 • Total solar hot water projects installed is 41 • Total wind projects installed is 86 8,000,000 8,000,000 • Total hydro projects installed is 6 • Total renewable energy installed through RenewableGenerations is more than 6,000,000 leads 6,000,000 “Clean energy is 38 megawatts

ortfolio Credits • Total rebates awarded are more than $128 million the nation in 4,000,000 a key sector for

(Thousands) 4,000,000 geothermal Nevada. RenewableGenerations growth 2,000,000 2,000,000 energy It provides 450 0 400 0 energy from development. P R enewable 350

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 local sources, 300 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 250 Geothermal Energy Association’s drives April 2012 Annual U.S. Geothermal Credits Earned/Projected Credit Requirement 200 Power Production and Credits Earned/Projected Credit Requirement Development Report innovation, rojects

P 150 and most 100 Key Projects Under Construction or in Development importantly, 50 0 Crescent Dunes Solar Thermal FRV Spectrum Solar Photovoltaic brings high- 2004 2005 2006 2007 2008 2009 2010 2011 Crescent Dunes Solar • 110-megawatt concentrated • 30-megawatt photovoltaic solar project quality jobs NVE Renewable Energy Programs project owned by SolarReserve owned by SunEdison Under construction near List of Accomplishments Tonopah, Nev. • Under construction in Nye County near • In development east of the City of North and economic NV Energy’s Dramatic Renewable Energy Growth Tonopah, Nev. Las Vegas in Clark County growth to • Utilizing molten salt solar storage • Expected to be operational in 2013 Megawatts Number of technology developed by Pratt & Whitney the local Projects Rocketdyne to provide NV Energy Clayton Valley Geothermal 1,200 60 customers solar power day or night communities.” • 53.5-megawatt geothermal project owned Number of Renewable Projects in Production • Expected to be operational 2014 by Ram Power 1,000 50 Nevada Governor Brian Sandoval Renewable Energy Megawatt Capacity • In development in Eureka County, Nev. May 2012 One Nevada Transmission Line Stillwater 2 Solar Dedication • Expected to be operational in 2014 800 40 • 235-mile long, 500,000-volt transmission line under construction between Southern Mountain View Solar Photovoltaic 600 30 Nevada and northeast Nevada • 20-megawatt solar photovoltaic project Renewable Energy • Joint project with Great Basin owned by NextEra Transmission-South • In development in City of North Las Vegas 400 20 • Enables development of a number of • Expected to be operational in 2014 renewable energy projects and will 200 10 connect NV Energy’s northern service area Dixie Meadows Geothermal 2012 with southern service area for the first time • Expected to be operational late 2013 • 51-megawatt geothermal project owned 0 0 by Ormat Technologies 2005 2007 2009 2011 2013 2015 • In development in Churchill County Stillwater II • Expected to be operational in 2015 Solar/Geothermal Project Churchill County, Nev. Printed on recycled paper.  In development or Executive Summary NV Energy’s Extensive Renewable Sources Renewable Energy Project List in construction NV Energy has a legacy of embracing and utilizing renewable energy on behalf of its customers since the early 1980s. This longstanding commitment has resulted in dramatic renewable energy growth in Silver State Solar North 1 Beowawe Power 8 Galena 3 16 soda Lake II Lockwood Landfill near Primm, Nev. recent years and an unprecedented success rate for contracted utility-scale projects. 17.7 MW 26.5 MW 19.5 MW Gas Facility Storey County, Nev. 2 Brady Geothermal 9 Homestretch 17 steamboat Hills Just three years ago, NV Energy’s committed renewable energy projects topped out at about Project 2.1 MW 14.6 MW 300 megawatts of energy. That number is now over 800 megawatts and will see an additional 22 24.0 MW 10 Jersey Valley 2011 Renewable 300 megawatts of clean energy sources added over the next two years. Approximately 1,100 Geothermal Project 18 steamboat IA nameplate megawatts of renewable energy – from all corners of Nevada – are currently under 3 Clayton Valley 1 22.5 MW 2.0 MW Portfolio Standard 6  53.5 MW contract. (A net megawatt is enough energy to meet the needs of approximately 600 homes 11 mcGinness Hills 19 steamboat II Breakdown during a hot summer day.) 39 4 Desert Peak 48.0 MW 13.4 MW “This is a model 1 Geothermal Project #2 12 richard Burdette Balancing Customer Needs 25.0 MW 20 steamboat III of industry and Generation Facility 13.4 MW These successes were all achieved in alignment with efforts to carefully balance customer 14 10 5 Dixie Meadows 26.0 MW government

energy needs with the legislated requirement, and to ensure that energy sources Geothermal  51.0 MW 21 stillwater 2 13 salt Wells 47.2 MW Geothermal represented the best value for customers. Much of this recent success can be attributed 23.6 MW working 62% to the ability of the company and its renewable energy partners to execute on projects 6 Faulkner 1 (Photovoltaic 2 5 49.5 MW Addition 22.0 MW) that are able to take advantage of federal grants and loan guarantees over a very 14 san Emidio together to 36 4 11 11.8 MW limited window of opportunity. These additional financial benefits helped increase the 7 21 7 Galena 2 22 Tuscarora 35 strengthen local success rate of NV Energy’s renewable projects from the historic 60 percent to a better 37 15 13.0 MW 15 soda Lake I (aka Hot Sulfur 41 40 Springs 2) than 90 percent completion rate. 12 8 16 3.6 MW economies, Small 38 42 17 13 44 32.0 MW Hydro 18 9 generating Wind Renewable Portfolio Standard Success 19 20 12% 16% Both NV Energy operating companies exceeded the Nevada “Renewable Portfolio Standard” 23 amonix Pecos Solar 27 31 rv Apex Solar good jobs requirement of 15 percent of retail sales for 2011. NV Energy-South achieved an RPS of 16.7  0.5 MW Water District 20.0 MW ON Line 500 KV and affordable, percent, and NV Energy-North accomplished a 24.9 percent RPS for 2011. Both companies also Transmission (Six Projects) Solar PV 4% 24 CNLV - Solar 32 searchlight Solar LLC easily exceeded the minimum requirement that at least 5 percent of the RPS credits be derived from Intertie 3.0 MW (Under Construction)  1.0 MW  17.5 MW reliable and Solar Thermal 4% solar energy sources. 28 mountain View Solar 25 25 Crescent Dunes  20.0 MW 33 silver State Solar  110.0 MW 52.0 MW sustainable

Other 2% S olar The RPS outlook remains positive, although NV Energy will be required to balance a number of variables 29 nellis AFB power.” 3 26 FRV Spectrum 13.2 MW including load growth, changes in law, successful operation of the existing and future renewable  30.0 MW energy projects and stable resource availability for projects. In addition to these factors, the RPS will 30 steadily increase from 15 percent of retail sales in 2012, to 18 percent in 2013, to 20 percent in 2020, 69.0 MW U. S. Secretary of the Interior and finally to 25 percent in 2025. Ken Salazar, May 2012 dedication of “A diverse Silver State Solar North Recent Project Successes BIOMASS hYDRO WASTE HEAT and balanced Some of the notable project milestones that were recently accomplished on behalf of NV Energy 34 CC Landfill Energy LLC 38 Fleish 43 Goodsprings Energy customers include the substantial completion or commercial operation of the: 12.0 MW 2.3 MW Recovery Station renewable • 48.0-megawatt McGinness Hills geothermal project in Lander County; 7.5 MW 28 35 lockwood Renewable 39 Hooper • 12-megawatt CC Landfill Energy project north of Las Vegas; energy portfolio 31 34 Energy 0.8 MW • 32- megawatt Tuscarora geothermal energy project in Elko County; 2011 Nevada Renewable 3.2 MW will benefit our • 52-megawatt Silver State Solar photovoltaic energy project near Primm; 40 truckee Carson 29 36 sierra Pacific Irrigation District • 3.2-megawatt Lockwood Landfill Energy project located east of Reno; and the 27 26 ther customers and Portfolio Standard Results: O Industries 4.0 MW • 151.8-megawatt Spring Valley Wind project located in eastern Nevada. 31 24 10.0 MW 23 41 Verdi the environment NV Energy - North — 24.9 % 43 30 37 truckee Meadows 2.2 MW On the horizon Water Reclamation for decades.” The company continued its renewable energy progress and entered into several new agreements for NV Energy - South — 16.7 % 33 32 Facility 42 Washoe 2.2 MW additional renewable energy resources for its customers. During 2011, the company received regulatory 0.8 MW NV Energy President and CEO approval to secure more than 100 megawatts of additional renewable resources. Those projects include: Michael Yackira • 30-megawatt solar PV facility in North Las Vegas known as FRV Spectrum Solar; • 20-megawatt solar PV facility in North Las Vegas known as Mountain View Solar; 44 spring Valley Wind • 51-megawatt geothermal plant in Churchill County, Nevada known as Dixie Meadows; and Spring Valley Wind 151.8 MW White Pine County, Nev. • 1.5-megawatt renewable credit purchase from two solar PV projects in North Las Vegas. win d