DG Installations in Massachusetts

The tracking data submitted to the DG Collaborative by the Massachusetts utilities covers a 2-year period and is presented in detail below on this page.  The type of data and reporting will change in the future, as described at the following page:

• Future Annual DG Data (to begin in 2006)

This future data will represent an expansion of a data series that began after the 1997 Restructuring Act.  Some of the historical data is available at:

• Annual Data on QF and On-Site Generating Facilities Prior to 2006

Additional data on Massachusetts projects is available at:

• Data on DG Installations in Massachusetts

Tracking data on interconnection activity April 2004 - March 2006

One reason for the extension of the DG Collaborative to June 2006 was to allow for a review of the experience with the new Interconnection Tariffs that went into effect in April of 2004. The data to be collected on a quarterly basis was specified in the DG Collaborative's 2003 Report (Appendix C, page 50).  The current data specifications are documented, and the first-year results are summarized, in this excerpt from Chapter 1 of the 2005 Report.

The names and addresses of individual projects are not included in this data.  Data is not reviewed by the Collaborative for particular projects for which the owner has requested this confidentiality, but the aggregate results include such projects (e.g., in totals and averages).

For comparison, see CHP Units located in Massachusetts (approx. 110 units were listed as of June 2006 in this on-line database supported by DOE and ORNL and maintained by Energy and Environmental Analysis Inc.  Of these, 10 have on-line dates in 2004 and 2005, totalling 1,700 kW.)