This week’s Green IT Roundup highlights:  Large US firms spending $2.5 billion annually on technology consulting and system integration relating to their energy and sustainability initiatives by 2015, Achieving energy efficiency without trying, U.S. Energy Department invests $7 million in three energy-efficient light projects as part of its efforts to reduce energy costs, and How schools can use less energy & spend less money, without the sacrifice.

This week’s Green IT Roundup features:  Genzyme’s energy-saving initiatives, which have allowed the company to reduce its energy bill by 13%, The need for IT to take a leading role in implementing sustainability initiatives, The establishment of The Young Entrepreneurs Fund to promote the development of low carbon technologies by entrepreneurs and small to medium-size firms, and The role energy efficient buildings in promoting healthier companies.

This week’s Green IT Roundup highlights: The savings capabilities of PC power management (PCPM), Recap of a roundtable discussion on sustainability by Chicago’s largest organization and corporations, Army turning to the cloud to reduce its operations, and UK business investment in sustainability increasing dramatically by 2015.