How do we get to a DC-powered home?

TitleHow do we get to a DC-powered home?
Publication TypeJournal Article
Year of Publication2012
AuthorsFreeman D
JournalEDN Network
KeywordsDC power, home, News
AbstractRecently I had a discussion with some of my colleagues about the benefits of a DC-powered home. I commented that in some ways, my home is becoming more and more DC-powered. Actually, it is kind of a distributed DC power where some rooms have four or more wall adapters, as well as other devices that convert to DC internally like computers and printers. According to the Environmental Protection Agency (EPA) in the United States, each person has an average of eight adapters1. Counting what I have at home and the office, I have 10 – although some are duplicates. For example, I have a notebook charger for my home and one for my office. Over 100 years ago, Edison and Westinghouse were on each side of the DC versus AC debate. At that time the loads were light bulbs, motors, and heaters. All had DC or AC options. AC had the advantage in that the voltage could be changed with a simple transformer. DC had issues like arcing and connector corrosion.