Urban Americans Appear to Have Limited Understanding of How Best to Conserve Energy
August 20th, 2010Urban Americans Appear to Have Limited Understanding of How Best to Conserve Energy
A study in the August 16, 2010 Early Online version of the Proceedings of the National Academy of Sciences of the United States of America suggests that Americans have a relatively poor understanding of how best to conserve energy in their daily lives.
Investigators from Columbia University, Ohio State, and Carnegie Mellon University examined the perceptions of 505 adults from seven urban areas across the country. When asked to list the most effective thing they could do to conserve energy, about 55% of participants mentioned curtailment actions (e.g., unplugging appliances), and only 12% of participants mentioned efficiency actions (e.g., choosing more efficient appliances). Turning off the lights—one of the least effective actions—was listed as the “most effective thing” by nearly 20% of participants.
Participants also had “relatively little knowledge” about the comparative energy use and potential savings of different household and transportation behaviors. Participants tended to slightly overestimate the benefits of low-impact behaviors, like using a laptop computer instead of a desktop. On the other hand, participants seriously underestimated the benefits of high-impact behaviors like washing clothes in cold water instead of hot.
The results were somewhat surprising given that 37% of the study participants identified themselves as environmentalists. In fact, the least accurate perceptions were held by participants who claimed to engage in the greatest number of energy-saving behaviors. The study authors write that “people may focus primarily on the behaviors they have already adopted, leading to inaccuracies in judging how much energy other behaviors use or save.”
The focus on curtailment actions over efficiency actions is likely related to the cost and ease of implementation.The study finds that“efficiency improvements almost always involve research, effort, and out-of-pocket costs (e.g., buying a new energy-efficient appliance), whereas curtailment may be easier to imagine and incorporate into one’s daily behaviors without any upfront costs.”Click here to download the study.
Repower at Home Diverts One Million Pounds of Coal from Power Plants, Raises the Stakes
Repower at Home’s October 10th Coal Challenge has already reached its goal of reducing energy usage for participants by the equivalent of one million pounds of coal. Now, their goal is to divert seven million pounds of coal before October 10, the 10/10/10 Global Work Party.
Join the challenge by creating an account and taking action in your home. Each action you complete saves energy and earns points. For example, the annual energy savings from programming your thermostat is equivalent to diverting 870 pounds of coal from a power plant. By completing this action, you could earn 870 points and contribute 870 pounds to the challenge goal.










