Community Energy Networks With Storage by Kaveh Rajab Khalilpour & Anthony Vassallo

Author:Kaveh Rajab Khalilpour & Anthony Vassallo
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore

The PV output is mainly allocated for local use, providing for the local load (46.8 %) and battery charge (38.3 %). The small surplus PV generation (504.6 kWh, i.e., 14.9 %) is dispatched to the grid. The battery does not dispatch electricity to the grid during any period . Within the first year, the battery receives 598.8 kWh (31.5 %) of electricity from the grid, mainly during off-peak periods, and its remaining charge (1300.1 kWh, 68.5 %) is supplied by the PV system. The selected 5.5 kWh battery never operates below 15 % SOC, i.e., 0.83 kWh charge, and its average annual SOC is 2.79 kWh.

In summary, without the PV-Battery installation, the average annual electricity demand is 0.70 kW. With installation of the PV-Battery system, the average demand from the grid decreases to 0.39 kW (0.32 kW for load and 0.07 kW for battery charge). Under the given conditions, this investment can save $949.50 (NPV of cash flow) in the electricity bill over the next 10 years.

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