Presentation on theme: "Distributed Generation & Energy Storage in Indonesia"— Presentation transcript:
1Distributed Generation & Energy Storage in Indonesia Chayun BudionoPT Gerbang Multindo NusantaraJakarta, Indonesia
2Indonesia in Profile*) Sea area :km2Land area :km2Population :212 MillionProvinces : 31District : 302Sub-district : 4 918Village :Islands :Currency : Indonesian Rupiah (IDR)1 USD 8500 IDRAll figures are approximation only*) Central Bureau of Statistics 2003
3Energy Reserve in Indonesia FossilFuel Oil*) : 5.00 Billion Barrels (0.5%)Gas *) : 2.05 Trillion m3 (1.4%)Coal *) : 5.22 Billion Ton (0.5%)RenewableHydro : 75.0 GWBiomass : 470 Million GJ/yearSolar Energy : 5.0 kWh/m2.dayWind & Wave : Potential along South Coast of Java*) Proven Reserve as of 2000; percentage to the world reserve.
4Needs for Energy Storage Supply of most RE systems as well as energy demand are time dependent.Both RE supply and energy demand generally follow a statistical phenomenaAvailability of RE supply does not necessarily coincide with the energy demand
5Supply & Demand Pattern PV Outputoutput to batteryoutput to loadload to be supplied from battery
6Solar Home System (SHS) Socket for radio, TV, etcTL LampBCUPV PanelBatteryPV-panel50WpBattery Control Unit10 A/12VDCBattery70 Ah/12VDC3 TL lamps10W/12VDC
14Micro-hydro Plant LEGEND 1. Weir 6. Storage Tank 2. Sand Trap 7. Penstock3. Pipe Bridge 8. Spillway4. Head Race Channel 9. Power House5. Siphon 10. Tailrace Channel
15Hydraulic StorageThe 2275 m3 capacity storage tank provides back-up capacity allowing the scheme to supply peak load demands for limited periods (min 2 hours) even when streamflow is below design flow.Power Output 2 x 125 kWDesign flow 600 l/sNet Head 64 mHeadrace 572 mStorage 2,275 m3
17ConclusionStorage system remains an important component or plays an important role in distributed generation, particularly for the renewable energy system applications.Cost of RE distributed generation, particularly a stand-alone PV system, is significantly influenced by the cost of battery. Hence, there is a need to reduce the battery cost and increase the battery lifetime to enable bring both the investment- and lifecycle costs of renewable energy systems down.Hydraulic storage (pumped water) can be one of alternative energy storage system for RE application.Utilization of pumped sea water as a storage has an economic potential to be developed along the south-coast of Java island. It can be used to fill the valley during low demand of Java-Bali grid or in combination with the utilization of distributed renewable energy sources (wave, wind and solar-energy).