Personal Use of Nevada Power Web Site

Sierra Pacific Resources and its subsidiaries (collectively "Sierra Pacific") have prepared this Web site solely for the purpose of providing information to interested parties. While Sierra Pacific has attempted, in good faith, to ensure the information presented in this Web site is accurate, there may be inadvertent (technical and factual) inaccuracies and typographical errors in the information presented. Sierra Pacific disclaims all representations and warranties (both express or implied) regarding the accuracy, completeness and/or suitability of the information presented on this Web site for any purpose. In no event shall Sierra Pacific be responsible for the consequences associated with use of this information. Sierra Pacific reserves the right to make changes and corrections to the information provided on this Web site at any time, without notice.

Sierra Pacific hereby authorizes you to view, copy, download, and print Sierra Pacific documents that are available on this web site, subject to the following conditions:

• The documents may be used solely for personal, noncommercial, and informational purposes. The documents may not be modified. The following copyright notice and permission notice must appear in each document: "Copyright (c) 2008 Sierra Pacific Resources. All rights reserved. Protected by the copyright laws of the United States and international treaties."
• Copyright, trademark, and other proprietary notices may not be removed.

You may not reproduce, copy, or redistribute the design or layout of the Sierra Pacific website, individual elements of the website design, or Sierra Pacific Resources or any of its subsidiaries logos without the express written permission of Sierra Pacific Resources.

Commercial Use of Sierra Pacific Website Materials and Screen Shots Reproduction, copying, or redistribution for commercial purposes of any materials or design elements on the Sierra Pacific web site is strictly prohibited without the express written permission of Sierra Pacific. Permission is granted only when certain limited criteria are met. To request such permission please send an email and include the following information in the body of the message:

• The Sierra Pacific content you wish to use. Where and how will it be used (for example, a book cover, an advertisement, or a brochure). Where and how copies will be distributed and to what audience. How many copies will be produced and distributed. When you intend to publish. Other non-Sierra Pacific materials that will be associated with the Sierra Pacific content.
• Your name, title, company, address, email address, and phone number.

Licensed Logo Use

Use, reproduction, copying, or redistribution of Sierra Pacific logos is strictly prohibited without written permission from Sierra Pacific. If your organization has a preexisting agreement with Sierra Pacific, that agreement, along with the specific guidelines for each logo, will specify your rights and obligations regarding use of Sierra Pacific logos. If you do not have an existing agreement with Sierra Pacific, you do not have permission to use Sierra Pacific logos. If you have additional questions, please contact Sierra Pacific.

Downloading Files/Software

All files/software and accompanying documentation made available for download from this web site is the copyrighted work of Sierra Pacific or its suppliers. Software and documentation ownership is retained by the copyright holder. Ownership is not transferred to you; rather, you are licensed to use the software and documentation. The use of any such software or documentation is subject to the terms of a license agreement. Please read the license agreement that accompanies each product and indicate your agreement to those terms prior to downloading.

Privacy Notice

Sierra Pacific is committed to maintaining your privacy on the Internet and protecting your personal information in the same fashion we protect our employees and company information. Should you have any concern about the information you provide to Sierra Pacific, please contact us and we will work with you to satisfy your privacy needs.

We adhere to the following privacy policies:

• Sierra Pacific collects your personal information only with your informed consent.
• Sierra Pacific uses your information for personalization, identification, communication and in the conduct of business at our request.
• Sierra Pacific does not sell or or distribute your personal information without your express consent.
• You always have the right to request that your personal information be removed.

Ways to protect your privacy

1. Never share your Sierra Pacific account number, logins or passwords with anyone who you don't want accessing your account. Use caution in sharing your email address, or other personal information, in our chat rooms and on our message boards. Know that Sierra Pacific chat rooms and message boards are generally viewable by the public, unless otherwise noted, and any information posted within these areas may be retrieved by persons unknown to Sierra Pacific. If you have any concerns or doubts about posting information to any of our chat or message boards, please contact us prior to doing so. Messages posted on our message boards can not be removed unless specifically requested of Sierra Pacific.
2. Sierra Pacific may record the dialogue of chat and message boards to make available to persons who missed an event or do not have access to that resource.

Web site

The Sierra Pacific Web site is designed to facilitate the providing and sharing of information. We do this to enhance communications, make informed decisions, and offer Internet-specific services for our customer and shareholders. To do this, it is often required to ask of our users to provide information that may be considered "private" in nature.

Sierra Pacific complies with industry standards for protecting the privacy and personal information of the users of our Web site. Sierra Pacific internally reviews our compliance with these standards on a periodic basis.

Sierra Pacific may, at times, provide aggregate data to our partners and clients to better serve our customers. In all cases, the provision of such data is in compliance with the rules, regulations and laws of the Public Utilities Commission, federal, state and local government. Sierra Pacific never provides our clients with information that could be used to identify you personally, without first obtaining your express consent. Any data that we may use is always presented in a format that retains the personal privacy of our users.

At times, Sierra Pacific asks for your email and other contact information in order to provide you with information and/or fulfillment that you request, notification of news, promotions, events, financial, investor, economic, and regulatory information. Your email and contact information is used to contact or service you with information or service that you have requested to receive. At all times, you may request to be removed from such distribution by contacting us directly. Your personal contact information is not shared with any outside company or person unless it is specifically stated as part of that request process.

We train all employees in the aspects of maintaining privacy. Further, we ensure that the tools necessary for maintaining such privacy are available.

Sierra Pacific logs all Web transactions and stores the IP address of your computer when you visit our site for statistical purposes only. The IP information is used only to ascertain broad geographic and demographic information used for business analyses. We also use "cookies" in certain instances within the Web site. This is done only to facilitate a more convenient environment and enhance your experience within the Web site. At any time you may remove the cookies we place within your browser by accessing your "cookies.txt" file and deleting those cookie entries. Check your browser's Help file for more information on how to manage your cookies to protect your privacy. Finally, any personal profile of you that we maintain for Web site specific use may be removed by contacting us directly.

The Web is based on hypertext links. It is what makes the Web so useful for communicating information. Often, Sierra Pacific will provide links to Web site's of persons and companies outside of Sierra Pacific control. We are not responsible for the privacy policies and procedures maintained by these external sites, including whether they collect and sell personal information about users. We suggest contacting these sites directly for information on their data collection and disbursement policies.

Patent Notice

Sierra Pacific is licensed under the following, and related Ronald A. Katz Technology Licensing, L.P. United States Patents: 5,128,984; 5,561,707; 5,684,863; 5,815,551; 5,828,734; 5,917,893; 5,898,762; 5,974,120; and others.