http://www.pge.com/myhome/saveenergymoney/energysavingprograms/han/ http://www.pgecurrents.com/2012/10/01/pge%e2%80%99s-updated-green-button-technology-makes-it-easier-for-customers-to-access-energy-data/ http://www.pge.com/greenbutton/ http://www.pge.com/myenergy/ http://www.pge.com/greenbutton/ http://www.pge.com/homeenergyreports/ PG&E joined with the U.S. Department of Energy and Itron, Inc. in 2012 to sponsor a $100,000 competition called Apps for Energy to develop the best Web, mobile or tablet apps using the Green Button.