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

Photovoltaic generation effects on distribution feeders

Technical Report ·
OSTI ID:5249350
 [1];  [2];  [3];  [4]
  1. New England Power Co., Westborough, MA (United States)
  2. Ascension Technology, Lincoln Center, MA (United States)
  3. Electric Research and Management, Inc., State College, PA (United States)
  4. Worcester Polytechnic Inst., MA (United States)

As the electric utility industry looks to diversify and expand its energy mix, more and more attention is being focused on alternate energy sources such as roof-mounted photovoltaic (PV) generation systems. The principal objective of this research project is to determine if present designs for distributed photovoltaic generation equipment will operate without detrimental effect on either the utility system or the customer owned equipment. Grid-connected roof-mounted photovoltaic (PV) systems have been installed by the New England Electric System Companies on 30 houses in Gardner, Massachusetts. All 30 PV houses are in one neighborhood on the very end of one phase of a 13.8 kV feeder. To further illustrate use of the analysis techniques, they were applied to the same 13.8 kV feeder as it might be configured in the year 2018, 30 years hence, with a total of 500 PV installations averaging 6 kW each for a total installed PV generation of 3000 kW. The results not only illustrate use of the analysis techniques in a general sense but also provide realistic examples of the pitfalls that a distribution planner should look out for when designing a feeder with an expected high penetration of customer owned generation. 1 ref., 79 figs., 23 tabs.

Research Organization:
Electric Power Research Inst., Palo Alto, CA (United States); New England Power Service Co., Westborough, MA (United States); Ascension Technology, Lincoln Center, MA (United States); Electric Research and Management, Inc., State College, PA (United States); Worcester Polytechnic Inst., MA (United States)
Sponsoring Organization:
EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
OSTI ID:
5249350
Report Number(s):
EPRI-EL-6754-Vol.2
Country of Publication:
United States
Language:
English