July 14, 2006

National Grid (UK) has acquired a corporate license for the PowerFactory software

National Grid, the Transmission System Operator of Great Britain, has acquired a corporate license for the PowerFactory power system analysis software, by DIgSILENT. The license covers more than 165 simultaneous user installations of varying functionality. These will be used for transmission planning, up to 7 years ahead and for operations planning purposes, down to 4 hours ahead. To guarantee the highest possible availability for operational applications, PowerFactory installations will be running on redundant application server clusters, in a multi-user database environment.

The introduction of DIgSILENT's software arises from National Grid's need to replace its "ELLA" in-house power systems analysis software suite, which has served it well since the 1980's. PowerFactory was selected after National Grid instigated an extensive two stage evaluation process of potentially suitable, commercially available, software suites, which commenced in October 2005. During National Grid's initial market screening, a total of three established software products were selected for further evaluation. After PowerFactory was provisionally selected, the software was subjected to further extensive functional and quality checks against requirements, benchmarks and tests that were set by National Grid, before it was finally approved.

The overall project implementation for National Grid is being realised in cooperation with TATA Consultancy Services, UK. TCS is especially responsible for the preparation of data bases, interfaces to other National Grid systems, single-line and substation diagrams and for providing 24/7 IT support. In addition to the delivery of PowerFactory standard software and National Grid specific features, DIgSILENT is responsible for user training, application support and for providing overall support for data migration and the integration of PowerFactory as the turnkey "ELLA" replacement. A phased roll-out is planned for beginning of 2007, with project completion expected by October 2007.

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