Tenders Are Invited For Renewable Based Hybrid Systems And Mini Grids On Outerislands Tonga Renewable Energy ProjectThe Design Construction Installation And Integration Of Solar Pv And Battery Power Systems The Facilities Of The Outer Islands Of Tonga In Two 2 Lots As Shown Below Lot 1 Solar Pv System And A Battery Energy Storage System Bess To Supplement The Existing Power Supply On The Islands Of Eua And Vava U A 350 Kwdc 300 Kwac Ground Mount Solar Pv Array And 400 Kw 900 Kwh Bess Is Required On Eau And A 300 Kwdc 250 Kwac Ground Mount Solar Pv Array And 900 Kw 450 Kwh Bess Is Required On Vava U Both Bess Must Be Able To Operate In Grid Forming Mode Integration With The Existing Power Systems Is Also Required On Vava U This Requires Connection To The Existing Spare Circuit Breaker On The Power Station Main Switchboard On Eua This Requires Installation Of A New Containerized Switchboard And Reconnection Of Existing Generation To The New Switchboard Lot 2 Five 5 Independent Power Systems To The Islands Of O Ua Tungua Kotu And Mo Unga One In The Ha Apai Group And Niuafo Ou In The Niua S Group One For Each Island To Create Independent Minigrids Each Power System Shall Consist Of A Village Level Solar Pv Array And Battery Energy Storage System Bess And A Distribution System And Customer Connections There Is No Current Centralized Power Supply On These Islands The Power Systems Are Required To Provide Power 24 Hours Per Day Seven 7 Days Per Week Meeting The Estimated Island Demand Which Averages Between 9 Kw And 51 Kw
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