Energy Efficiency options?

Energy Efficiency

Energy Efficiency eBook - 60 technologies reviewed - 54 best practices that can be applied for free.
Light Energy Calculator - Calculate the before and after costs for efficient lighting.
Appliance Energy Calculator - Calculate the running and standby costs for running appliances.
Hot Water Calculator - Calculate the before and after hot water costs using water efficient plumbing.
Compare running costs of petrol and electric cars

Computing Efficiency options?

Computing Efficiency

Measure Computer Power Consumption
Calculate your computer components total power needs?
Desktop computer selection guide - Create your desktop computer required specifications list.
Laptop computer selection guide - Create your laptop computer required specifications list.
Chromebook computer selection guide - Create your Chromebook required specifications list.
Information Technology Performance Efficiency