HP this week refreshed its high-end chassis Ethernet switches with modules that conform to the IEEE’s Energy Efficient Ethernet standard for reducing power consumption.

The Green Grid consortium, which developed the widely-used PUE metric for measuring energy efficiency in data centers, is developing two more metrics to address carbon emissions and water usage, it said Thursday.

A dozen nitty gritty tools and technologies that cut energy costs, boost data center efficiency and promote green IT practices.

Facebook and eBay shared some tips this week for improving efficiency and cutting energy bills in data centers.

Banking giant Credit Suisse has sated its power consumption hunger through the use of virtualization

Yahoo is opening a data center in upstate New York that uses a radical new design to reduce energy costs by 40 percent, the company said Monday.

Cisco Systems on Tuesday announced the Cisco Network Building Mediator Manager 6300, a platform to manage all the systems in an enterprise that consume energy, across all the organization's facilities.

Cisco Systems took another step into the consumer market today by announcing a Home Energy Controller device that homeowners could buy from local utilities to help with energy conservation.

Despite virtualization, power saving hardware and other green-friendly IT tech, data centers are consuming more power than ever

There's more to energy efficiency than green IT. If you want to cut corporate energy costs, you have to look beyond the datacenter and the desktop.