Compare energy efficiency and energy conservation.

Comparison should include

• energy efficiency as technologies or processes that reduce energy input to obtain the same output (the importance of getting more output from less input), e.g., use of EnergyStar appliances, LED lights, weatherstripping, insulation
• energy conservation as behaviors that reduce the amount of energy consumption, e.g., turning off lights when not in use, unplugging chargers when not in use
• 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?