The best way to find green job training in the Boston area on the web, is to use the online directory of MA Clean Energy Career Training and Education Programs: www.cleanenergyeducation.org.
This directory is a joint project of the Northeast Energy Efficiency Partnerships and the New England Clean Energy Council in partnership with the MA Clean Energy Center. Their support helps ensure the dirctory is kept up-to-date and accurate.
The Excel file attached below is a much shorter list of green job training agencies and the training they offer, mainly in Boston. For more information, please visit each agency's web site or contact them directly. Skillworks has also developed a directory of green job training programs, available here.