Dell will design its laptops and desktops to consume 25 percent less energy by 2010.

The company will integrate Energy Smart technologies into the new systems, including circuit designs, fans and power management features.
It also will depend on its suppliers to provide more efficient components such as chip sets, power supplies and memory.

Dell said its OptiPlex desktops have improved in energy efficiency by nearly 50 percent since 2005, while its Latitude notebooks have increased in efficiency 16 percent since 2006.

With power-management features enabled, the OptiPlex desktop systems have saved customers $2.4 billion, Dell estimates.

Wednesday's news is part of a string of announcements from Dell, which is working at achieving its goal of becoming the world's green technology company. For instance, its headquarters campus is now completely powered with renewable energy and it offers free recycling of its equipment.

"Our customers are inspiring us to address the environmental challenges facing our planet," Albert Esser, Dell's Product Group vice president of power and infrastructure solutions, said in a statement. "We've listened to them and are designing next-generation technologies that dramatically reduce energy consumption, drive meaningful cost savings and help achieve a low-carbon economy. It's the right thing for our business, our customers and shared environment."