Editorial Contacts: Michelle Schofield Jonathan Rhudy Silicon Energy Carter Ryley Thomas PR (510) 263-2632 (804) 675-8132 mschofield@siliconenergy.com jrhudy@crtpr.com

NEIMAN MARCUS SELECTS SILICON ENERGY'S EEM SUITE* TECHNOLOGY -- Specialty Retailer to Better Control Costs and Reduce Risks Nationwide Using Enterprise Energy Management Software

ALAMEDA, Calif., (Oct. 24, 2000) - The Neiman Marcus Group Inc., one of the country's premier, upscale specialty retailers, has selected Silicon Energy's energy technology software - EEM Suite* - to better control costs and risks across its nationwide locations.

Neiman Marcus will use Silicon Energy's EEM Suite v2.0, including Data Analyst, Energy Analyst and Cost Analyst, along with Integrated Bill Management, to monitor energy usage and identify cost savings systemwide. Neiman Marcus also will use Silicon Energy's Utility Accountant software, along with its rate tariff functionality and content services, such as weather information, to pursue energy-related cost-reduction efforts. The integrated software will provide Neiman Marcus with Internet-enabled, real-time access to a variety of energy-related information across the organization.

Silicon Energy's technology will allow Neiman Marcus to collect precise load profile information nationwide and review up-to-date energy consumption profiles at any time. With this information, Neiman Marcus will be able to identify operational issues in an effort to prevent energy waste. It also will allow the renowned retailer to gather and store information that can be used in negotiations with utilities to procure energy at more favorable rates, especially in deregulated markets.

According to John Woolard, CEO of Silicon Energy, "Neiman Marcus is a welcome addition to Silicon Energy's growing list of national retailers. We expect that Neiman Marcus will be able to benefit from our energy technology software in a way that really impacts the bottom line. Because Silicon Energy will be handling metering as well as billing information for Neiman Marcus, we will be able to help the company take advantage of cost savings opportunities by keeping annual energy expenses in line with its budgets by managing ongoing cost and risk reduction opportunities."

About The Neiman Marcus Group The Neiman Marcus Group includes two specialty retail franchises, Neiman Marcus Stores and Bergdorf Goodman - as well as Neiman Marcus Direct, the Company's direct marketing operation.

About Silicon Energy Silicon Energy Corp., a developer and seller of Internet-based energy technology software that enables enterprises to reduce energy costs and related expenditures, is a privately held technology company based in Alameda, Calif. Silicon Energy's EEM Suite* is an integrated collection of software modules that enable enterprises and energy service providers to efficiently manage consumption, procurement and distributed energy assets. Silicon Energy allows real-time analysis and intelligent control over enterprise-wide energy usage, as well as comprehensive reporting and monitoring capabilities. In addition to its software, Silicon Energy offers professional and maintenance services designed to provide ongoing support to its installed base. Silicon Energy also offers subscription-based Management Service Provider services that deliver hosted access to the EEM Suite and content and integrated bill management services. For more information visit http://www.siliconenergy.com.

This press release contains forward-looking statements concerning Silicon Energy and Neiman Marcus' usage of Silicon Energy's EEM Suite 2.0. These forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially. In particular, the statements regarding (i) the provision and ability of Silicon Energy's EEM Suite software to allow Neiman Marcus Internet-enabled and real-time access to energy-related information; (ii) the ability of Neiman Marcus to monitor, control and identify costs and risks across its locations nationwide as a result of using Silicon Energy's software to collect, store and review energy-related information at any time; and (iii) the extent to which Neiman Marcus can maximize cost savings and reduce risk by using Silicon Energy's EEM Suite software, depend on a number of assumptions and uncertainties, including the usage and market acceptance of Silicon Energy's software and the certainty that Silicon Energy's software will produce accurate information and not interfere with Neiman Marcus' other software applications. These risks and uncertainties, in addition to others, are described in further detail in Silicon Energy's registration statement on Form S-1 filed with the Securities and Exchange Commission on Oct. 6, 2000.

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