Although forward-looking companies like Facebook and Google have implemented better cooling systems and software that saves on wasted power, most corporate datacenters, which constitute the bulk of total usage, are woefully behind in putting more efficient systems into practice.

FORBES: Taming Datacenter Power Usage

Smart Cartridge System- Moisture-lock cartridge ensures extended shelf life and total material usage improving print quality and sustainability.

ENGADGET: 3D Systems second-gen Cube 3D printer boasts faster prints and more materials

Based on electricity rates, the data is broken down to show the cost of both total energy usage and Volt charging energy use.

ENGADGET: Chevy Volt EcoHub app tells drivers how little they pay to charge, goads them into staying green (video)

While carrier and other third party apps have helped iPhone users monitor their total data usage, there are no apps in the App Store that make it easy for users to make sense of their apps' data consumption... until now.

ENGADGET: Data hungry apps revealed with Onavo Count, free usage tracker for iOS

It is interesting to note that as of August 2010, 64.5 million urban Chinese apartments, 25% of the total, had showed no electricity usage for six consecutive months.

FORBES: Manage America's Economic Decline? No Thank You.

Same total snowfall but different levels of equipment usage.

FORBES: Snow Plow Maker Set To Clean Up On Nemo

Of course the total energy used by a hard disk drive depends upon the actual usage and power saving modes, and caching of data can reduce the energy used by a HDD in a computer system.

FORBES: Seagate Discontinuing 7,200 RPM Drives--A Focus on Capacity?

For 2011, total aircraft deliveries are seen up 13.6%, with aluminum usage per unit up 3.2%.

FORBES: Stable-Higher Aluminum Expected From Participants, Delegates At Conference

Helped along by increases in wind power usage, AWEA has added 109 organizations to its membership roster thus far this year, bringing the total up to 1, 200.

FORBES: Magazine Article