(Washington, DC)  --  Oregon is getting a D-plus for renewable energy.  D.C.-based advocacy group Food and Water Watch issued a report yesterday on how states count polluting energy sources as renewable.  The state gets a C for mandating that utilities get half of their energy from renewable sources by 2040, a strict standard.  The grade is dragged down by what the study's authors say are dirty energy sources that actually leave a carbon footprint.  The report says Oregon has a broad definition of renewable, which includes energy made from mill residue, wood waste and sewage gas.