Title: Define energy efficiency.
Course: Energy and Power (20101-18) > Section: Exploring Demand-Side Management and Energy Efficiency

Definition should include

- reducing energy input to obtain the same output (the importance of getting more output from less input)
- physical limitations of various technologies and energy sources
- the relationship between efficiency and sustainability.

Process/Skill Questions:

- How are efficiency and sustainability related? What is an example of a situation where an increase in efficiency does not lead to greater sustainability?
- What are different types of light bulbs? How and why do their efficiencies differ?