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Telvent to develop control systems for Abengoa Solar's Spanish photovoltaic plants in Casaquemada and Linares-Bailén

May 6, 2008

Madrid, May 6, 2008.- Telvent (Nasdaq: TLVT), the IT company for a sustainable and secure world, announced today that it will implement the control systems for the photovoltaic technology plants being built by Abengoa Solar in Casquemada (132 heliostats) and Linares-Bailén (132 heliostats), in Spain, each with a 1.89-megawatt power output capacity.

Telvent’s systems will permit local-level control in the management of operational and sun-tracking modes. This process enables analysis of the sun’s position for proper placement of the heliostat, so that it receives the maximum amount of solar energy possible. In this way, solar energy production estimates are greatly improved, providing forecasts that are in high market demand.

A total of 264 control boxes (132 per plant) will be supplied to integrate the sun-tracking equations necessary for the plant to reach optimal performance. All measures required for equipping the plants with the highest levels of security will be also implemented.

According to Larry Stack, president of Telvent’s Energy division, "the system Telvent offers is designed to deliver security standards that ensure maximum reliability, availability and security, assuring ease in handling and use at the same time. Moreover, the development and application of solar energy technologies is aimed primarily at combating climate change and ensuring a sustainable world through develoed technologies, for both thermosolar and photovoltaic plants."

Telvent will work closely with Abengoa Solar on this project, as it did previously in the automation of all hierarchical control levels of the PS10 and PS20 plants, as well as Seville PV and the upper level of Repow PS10. Participation in these projects has afforded Telvent extensive knowledge of thermosolar and photovoltaic plants.

About Telvent

Telvent (Nasdaq: TLVT), the IT company for a sustainable and secure world, specializes in high-value-added products, services and integrated solutions in the Energy, Transportation, Environmental and Public Administration industry segments, as well as Global Services. Its innovative technology and proven experience help ensure secure and efficient management of the operating and business processes of the world’s leading companies. ( )

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