The Massachusetts Clean Energy Center has released their 2012 Massachusetts Clean Industry Report (http://www.masscec.com/index.cfm/cdid/13913/pid/11150)
There are 4,995 clean energy firms and 71,523 clean energy jobs in the Commonwealth, 1.7% of all employment in the state, with employment in the clean energy sector up 11.2% from 2011 compared with a 1.2% growth rate for all industries.
Employers are also optimistic about their future prospects, anticipating 12.4% growth over the coming 12 months.
From 2007 to 2011, there has been a thirty-fold increase in installed solar megawatts and a 108% growth in electric energy savings from energy efficiency.
Hat tip to http://www.greentechmedia.com/articles/read/report-71523-green-jobs-for-massachusetts/