PJM Generator Interconnection Request 
                         System Impact Study Report 
                                                  
                                Queue Position #Q72 
                          Mansfield - S. Troy 115 KV 
                                          60 MW 
                                  (12 MW Capacity) 
                                    November 2009 
                                            (REVISED) 
                                                  
                                                  
                                                  
                                                                                      
            © PJM Interconnection 2009. All rights reserved. 
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                                                             PJMDOCS-#550624-v2-Q72_SIS_Report.DOC 
                                                                                      
          Preface 
           
          The intent of this System Impact Study is to determine a plan, with cost and construction time 
          estimates, to connect the subject generation to the PJM network at a location specified by the 
          Interconnection Customer.  The Interconnection Customer may request the interconnection of 
          generation  as  a  capacity  resource  or  as  an  energy-only  resource.    As  a  requirement  for 
          interconnection, the Interconnection Customer may be responsible for the cost of constructing: 
          (1) Direct Connections, which are new facilities and/or facilities upgrades needed to connect the 
          generator  to  the  PJM  network,  and  (2)  Network  Upgrades,  which  are  facility  additions,  or 
          upgrades to existing facilities, that are needed to maintain the reliability of the PJM system.  
           
          In some instances a generator interconnection may not be responsible for 100% of the identified 
          network  upgrade  cost  because  other  transmission  network  uses,  e.g.  another  generation 
          interconnection,  may  also  contribute  to  the  need  for  the  same  network  reinforcement.    The 
          possibility  of  sharing  the  reinforcement  costs  with  other  projects  may  be  identified  in  the 
          feasibility study, but the actual allocation will be deferred until the impact study is performed.  
           
          The System Impact Study estimates do not include the feasibility, cost, or time required to obtain 
          property  rights  and  permits  for  construction  of  the  required  facilities.    The  Interconnection 
          Customer is responsible for the right of way, real estate, and construction permit issues.  For 
          properties currently owned by Transmission Owners, the costs may be included in the study.  
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
          © PJM Interconnection 2009. All rights reserved. 
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                                                 PJMDOCS-#550624-v2-Q72_SIS_Report.DOC 
                                                                     
                                  Queue Position #Q72 kV System Impact Study Report 
                
               GENERAL 
               The Queue Position #Q72 project was studied as a 110MW (22MW Capacity Resource) 
               injection on Mansfield - S. Troy 115kV line in the Penelec area.  Queue position #Q72 was 
               evaluated for compliance with reliability criteria for summer peak conditions in 2011. The load 
               flow portion of this study assumes the wind farm has the capability to maintain unity power 
               factor at the collector bus of the wind farm. 
                  
               To solve the voltage collapse on the Farmers Valley to E Towanda 115kV line with Q72 at full 
               output (110 MW) and the S Troy – P47 contingency, the following system reinforcement is 
               required.  Construction of 30 miles of new 230 kV line from Mansfield to Grover using 1033 
               ACSR conductor, installation of a four breaker 230kV ring bus at Grover, installation of a 230kV 
               and 115kV breaker and a 230/115 kV transformer at Mansfield and reconfiguration of Mansfield 
               into a 115kV ring substation - estimated to cost $60,998,100 (figure 2).  The following analysis 
               assumes this Network Upgrade is in place.   
                
               DIRECT CONNECTION FACILITIES 
               It is estimated the construction of the switching-station will take approximately 24 months 
               following the execution of an Interconnection Construction Service Agreement (CSA).  This 
               does not meet the Interconnection Customer’s requested in-service date.  The Interconnection 
               Customer, FirstEnergy, and PJM should meet to discuss how to proceed.  Specific timing and 
               milestones for completion of construction activities will be specified in the Interconnection 
               Service Agreement and Construction Service Agreement 
                  
               The proposed Interconnection Facilities must be designed in accordance with the FirstEnergy 
               Applicable Standards posted on the PJM Website titled “Requirements for Transmission 
               Connected Facilities” document. 
                
               http://www.pjm.com/planning/design-engineering/to-tech-standards.aspx 
                
               It will be the Interconnection Customer’s responsibility to obtain any needed right-of-way 
               between the plant site and FirstEnergy’s facilities. 
                
               Below are estimates for the engineering/construction associated with Direct Connection 
               requirements based upon similar projects that have been designed and/or constructed.  
               Item   Description                                   PJM Network  Conceptual Cost 
                                                                    Upgrade #       Estimate 
               1      New 115 kV 3-breaker ring bus termination         n1509       $3,220,500 
                      point at a new interconnection substation 
                      approximately 10.6 miles east of Mansfield 
                      115 kV Substation.   
               2      Engineering and Oversight of the Customer         n1510       $63,500 
                      Facility substation include relaying 
               © PJM Interconnection 2009. All rights reserved. 
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               Item   Description                                   PJM Network  Conceptual Cost 
                                                                    Upgrade #       Estimate 
               3      New 115 kV tap structure extending from           n1511       $79,700 
                      the Mansfield-South Troy 115 kV line to 
                      interconnection substation. 
               4      115 kV transmission line extending from            N/A        N/A 
                      the new tap structure in the Mansfield-South                  Developer cost.  Line 
                      Troy 115 kV line to the generation plant                      built, owned and 
                      interconnection substation.                                   maintained by the 
                                                                                    developer. 
               5      Fiber optic cable from Mansfield to P47           n1512       $1,327,700 
                      (Everts Drive Sub) approximately 15.5 
                      miles.  
               6      Relay and control work at Mansfield 115           n1513       $226,700 
                      kV Substation.  
               7      Relay and control work at P47 115 kV              n1514       $226,700 
                      Substation.   
                
               Conceptual Estimate:     $5,371,500 
               Estimated Lead Time:     2.0 years from signed CSA 
                
               Notes: 
               Detailed Engineering & Construction Estimates TBD during Facilities Study 
               The above estimates do not include 1) tax gross-up, if required, 2) property costs and site 
               development up to rough grade which is to be provided by the Interconnection Customer, 3) 
               interconnection metering and generation SCADA to be provided by the Interconnection 
               Customer, 4) engineering and field activities for design review and commissioning of the 
               Interconnection Customer’s facilities, and 5) Real estate costs that may be required for right-of-
               way easements to extend the 115 kV line. 
                
               The Interconnection Customer is required to meet the metering requirements of Attachment 1. 
                
                
               © PJM Interconnection 2009. All rights reserved. 
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