Telvent to host its 5th Annual Analyst and Investor Day

March 11, 2009

Telvent (NASDAQ: TLVT), the IT company for a sustainable and secure world, today announced that it will host its 5th Annual Analyst and Investor Day in New York on Wednesday, April 15, 2009 from 8:30 a.m. to 1:00 p.m. EST.

Later the same day, Telvent's Chairman and Chief Executive Officer, Manuel Sanchez, will also ring The NASDAQ Stock Market Closing Bell in a ceremony at the NASDAQ MarketSite in New York. This will be the first time that Telvent's Analyst & Investor Day and the Closing Bell ceremony are hosted together at The NASDAQ MarketSite.

"To host our Analyst and Investor Day at The NASDAQ MarketSite for the first time ever, is an extraordinary way to commemorate the fifth anniversary of Telvent's listing on the NASDAQ. Being part of the stock market with the most stringent listing standards has contributed largely to strengthening the credibility of Telvent in front of all its stakeholders, and we want to celebrate that", stated Manuel Sanchez.

A live webcast of the Analyst and Investor Day presentations will be available at the Investor Relations area in Telvent's corporate website at www.telvent.com. Please visit the website at least 15 minutes prior to the start of the event to register for the webcast and download any necessary software. Telvent's participation in the NASDAQ Stock Market Closing Bell ceremony can be also viewed live at the Investor Relations area in Telvent's corporate website at www.telvent.com at 3:45 p.m. EST on Wednesday, April 15, 2009.

About Telvent

Telvent (NASDAQ: TLVT) is a unique global company listed on the NASDAQ Stock Exchange and a component of the CleanTech IndexTM - the first and only stock market index of leading clean technology ("cleantech") companies.

Telvent, 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 Agriculture 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. (www.telvent.com)

Investor Relations Contact

Barbara Zubiria

Tel. +34 902 33 55 99

Email: barbara.zubiria@telvent.com

Lucia Domville

Tel. +1 646 284 9416

Email. ldomville@hfgcg.com

Communications Contact

Patricia Malo de Molina

Tel. +34 954 93 71 11

Email: comunicacion@abengoa.com