1. Updating the MA DG Interconnection Report DOER analysis of the Utility reporting of DG interconnection projects following the Expedited and Standard Review Processes from January 1, 2009 to May 1, 2012* * This analysis does not include applications submitted before January 2009 or projects following the Simplified Process (<10 kW on single-phase lines and <25 kW on three-phase lines after Jan 2009). The DG Report summarized projects through 2010 and is available at the MA Interconnection and Distributed Generation Website.MA Interconnection and Distributed Generation Website Presentation to the DG Working Group - May 31, 2012 Gerry Bingham, Senior Coordinator / Distributed Generation

2. Figure 4.22 (2009-May 2012) Applications by Year and Company (Standard and Expedited)

4. Figure 4.1 (2011-April 2012): Capacity of Projects By Size (kW) *NOTE: 92 projects (208 MW) have not yet been assigned a process.

6. Figure 4.2 (2011-April 2012): Number of Applications By Technology *NOTE: 92 projects (208 MW) have not yet been assigned a process.

8. Figure 4.3 (2011-April 2012): Capacity of Projects by Technology (kW)

10. Figure 4.8 (2011-April 2012): Percentage of Applications Exceeding Timeline Specified by Tariff (This tracks only projects that rec’d Agreements in each year)

11. Review Paths Side-by-Side 11

12. Expedited and Standard Process Flowchart 12 Customer submits application App complete (10 days) No Acknowledge w/i 3 days Initial review and screening (25 days) Provide Additional info Reviews needed? Perform Supplemental (20 days) All rqmts determine d Perform Studies (55 days/30 days) Send agreement (15 days) Complete system modifications D Facility Modificatio n needed Customer pays for modifications No Yes Information Exchange as needed Customer signs agreement, builds facility, provides insurance, relay test results and test plan, pays for witness test, etc. Relay Witness Test Authorize Interconnect Yes None Provide Additional info Information Exchange as needed Customer Utility Start

13. Expedited and Standard Process Flowchart 13 Customer submits application App complete (10 days) No Acknowledge w/i 3 days Initial review and screening (25 days) Provide Additional info Reviews needed? Perform Supplemental (20 days) All rqmts determine d Perform Studies (55 days/30 days) Send agreement (15 days) Complete system modifications D Facility Modificatio n needed Customer pays for modifications No Yes Information Exchange as needed Customer signs agreement, builds facility, provides insurance, relay test results and test plan, pays for witness test, etc. Relay Witness Test Authorize Interconnect Yes None Provide Additional info Information Exchange as needed Customer Utility Start

14. 14 Customer submits application App complete (10 days) Send agreement (60/150 days) Yes Authorize Interconnect Customer Utility Start

15. 15 Customer submits application App complete (10 days) Send agreement (60/150 days) Yes Authorize Interconnect Customer Utility Start 2 1 3 4 5 Process Phases Using Existing Reporting

16. 16 Customer Utility

17. 17 Customer Utility Rec’d Agreement In Study App. Deemed Complete Application Rec’d Information Exchange Authorized! Post- Agreement / Construction 3 4 5

18. 18 Customer Utility 628 MW In Study App. Deemed Complete Application Rec’d Projects Stuck at “Application Complete” Calendar Days Lapsed

19. Days Size (kW) 563 Projects 628 MW Note: There are 37 Projects reported as “0” kW. Standard: 210 calendar days

20. 20 Customer Utility 99.5 MW Rec’d Agreement In Study App. Deemed Complete Application Rec’d Projects that Received an Agreement

21. Expedited Projects – Time Lapsed for Received Agreement Days Expedited Review Max Timeline: 84 calendar days (Tariff: 60 business days) Size (kW) 378 Projects 39 MW

22. Standard Review Projects – Time Lapsed for Received Agreement Days Standard Review Max Timeline: 210 calendar days (Tariff: 150 business days) Size (kW) 59 Projects 60.5 MW

23. 23 Customer Utility 41 MW Post- Agreement / Construction Rec’d Agreement In Study App. Deemed Complete Application Rec’d

24. Post-Agreement Projects Awaiting Signature/Construction/Approval to Connect Size (kW) Days 207 Projects 41 MW Timelines for Construction are treated on a project by project basis by utility commitment in the Agreement.

25. DG Applications Submitted vs. Processed Starting Jan 2009 (Cumulative kW) -------- Applied -------- Authorized

27. Figure 4.23: DG Applications Submitted vs. Processed Each Year (Cumulative kW)

28. NU-NSTAR DG Applications Submitted vs. Processed Each Year (Cumulative kW) AppliedAuthorized 200940,2413,945 2010147,46513,209 2011316,27232,025 2012395,65143,695

29. National Grid DG Applications Submitted vs. Processed Each Year (Cumulative kW) AppliedAuthorized 200916,5102,417 201079,74113,523 2011383,22934,599 2012502,71850,960

30. NU-WMECo DG Applications Submitted vs. Processed Each Year (Cumulative kW) AppliedAuthorized 200910,492555 201016,1771,350 201132,7504,301 201287,0448,807

31. Unitil DG Applications Submitted vs. Processed Each Year (Cumulative kW) AppliedAuthorized 200900 201013939 20112,541551 20122,541

32. Freshness of Complete Applications Awaiting Agreement <84 Days 84-210 Days>210 DaysTotal <500kW Apps37111058 Avg (MW)0.1720.0870.107 MW6.3550.9581.0678.380 500kW- 1MW Apps54231491 Avg (MW)0.9020.930.921 MW48.69121.412.89282.983 >1MW Apps29332183 Avg (MW)2.7541.9312.066 MW79.85963.72443.384186.967 Total Apps1206745232 Avg (MW)1.1251.2841.267 MW135.00086.00057.000278.000 < 84 Days > 210 Days 48.7 6.4 79.9 1.0 21.4 63.7 1.1 12.9 43.4 1MW Snapshot: November 2011 Should DOER update?

33. < 84 Days > 210 Days 48.7 6.4 79.9 1.0 21.4 63.7 1.1 12.9 43.4 1MW 84-210 Days Freshness of Complete Applications Awaiting Agreement (distribution by size) Snapshot: November 2011 Should DOER update?