I searched this for my own purposes, thought to submit the link here if anyone else finds this useful. Basically it should be the generally valid electricity rate structure applied by the state owned EDEs. Based on our Edenorte bill at least the KWh amounts seem to match, so it should help others as well. To my surprise it?s even updated (at least it says so)...
http://www.edeeste.com.do/wp-content/uploads/2013/03/Tarifa-Abril-2015.pdf
http://www.edeeste.com.do/wp-content/uploads/2013/03/Tarifa-Abril-2015.pdf