Table 3

Voltages at the most “remote Bus” for the selected prosumer options with 5 kW of solar power/house and 2 kVA at 0.85 PF household loads, without and with the utility LDC option. Note: the feeder’s P (reverse power flow) and Q demand are also shown for each combination.

Prosumer option Without LDC With LDC
  22 kV substation voltage = 1.02 pu 22 kV substation voltage = 0.985 pu

  Most remote Bus voltage (pu) Pfeeder(MW) Qfeeder(Mvar) Most remote Bus voltage (pu) Pfeeder(MW) Qfeeder(Mvar)
Do nothing – solar inverters at 1 PF 1.084 −2.280 0.865 1.049 −2.275 0.873
Solar inverters at 0.95 PF (absorbing) 1.059 −2.226 2.111 1.025 −2.216 2.122
Q(V) ±0.9 PF (as per Fig. 3) 1.058 −2.213 2.053 1.041 −2.260 1.197

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