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U.S. Department of Energy
Office of Scientific and Technical Information

Small power production interconnection issues and costs. Final report

Technical Report ·
OSTI ID:7121686
Grid-connected small power production facilities pose new economic and technical interconnection problems for the utility and generator owner. This report presents sample interconnection arrangements and component costs for small power producers less than 100 kW. In addition, three California utility interconnection policies are discussed to illustrate utility concerns and the basis for their specific requirements. The interconnection costs for the sample arrangements range from $2000 to $11,000. In general, small power producers requiring synchronizing equipment, distribution primary ground fault detection equipment, and a dedicated distribution transformer incur the greatest interconnection cost. Small, line-dependent (i.e., induction generators, line-commutated inverters) generating devices utilizing modified motor protection require the least expensive interconnection equipment.
Research Organization:
Systems Control, Inc., Palo Alto, CA (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
7121686
Report Number(s):
DOE/NBM-4010757; ON: DE84010757
Country of Publication:
United States
Language:
English