As reported here, the Massachusetts Department of Energy Resources recently proposed new rules (pdf) regulating large wood-burning power plants.  These rules call for stringent efficiency standards, notably the encouragement of co-generation (the productive use of waste heat).  The impetus for the new rules was a recent study that challenged the widely-held assumption that the cultivation of forests for

up in smokeNot long ago, state environmental officials considered biomass energy, produced by large wood-burning power plants, an integral part of the Massachusetts renewable energy portfolio.  However, times have changed with the Department of Energy Resources’ (DOER) recent issuance of proposed rules (pdf) regulating large wood-burning power plants. 

If promulgated, the proposed rules would likely spell the