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Keeping Bali Out of the Dark

Maintenance and Breakdowns at Bali & Java Power Generating Stations Put Bali on the Brink of Brownouts.

(4/19/2008) According to Tempo Interaktif, once again Bali finds itself sittinh dangerously on the precipice of another power crisis due to a large number of power generating stations in Java closed or operating at reduced capacity due to maintenance and inspections issues.

A ten-day maintenance program at the 130 megawatt station at Gilimanuk from April 14-22 will cause a 40 megawatt shortfall in power supply for the Island of Bali.

A separate report in Bisnis Indonesia suggests a wider power crisis may loom with eight power generating stations on the island of Java currently operating at reduced capacities. The reduced capacity has prompted the State Power Company (PLN) to place the entire Java-Bali power grid on an "alert status" until power plants can be returned to near-full operating capacity.

Operating at normal levels the Java-Bali power grid has an overall capacity of 18,000 MW. Current maintenance programs have reduced that capacity to 16,000 MW, only marginally more than peak power demands of 15,675 MW

Summary of Java-Bali Power Stations Running at Sub-par Capacity

Plaiton, Unit 8, Combined Gas and Steam Power Station 600 MW Major inspection.

Tanjung Jati B, Steam Power Station 600 MW Inspection of boiler plates.

Suralaya Unit 3, Steam Power Station 400 MW Urgent inspection and re-tubing.

Cilacap Unit 1, Steam Power Station 300 MW Annual inspection

Tanjung Priok Unit 2, Combined Gas and Steam Power Station 120 MW Inspection of gas turbines

Tambak Lorok Unit 1, Combined Gas and Steam Power 120 MW Major inspection of the gas turbines

Grati Baru Unit 1, Combined Gas and Steam Power Station 100 MW Fire inspection

Tanjung Priok Unit 4, Steam Power Station 50 MW Inspection of turbine heaters

Gilimanuk, Gas Power Station 130 MW Routine maintenance program.

The Situation in Bali

In normal circumstances Bali's power supply stands at 560 MW, now reduced to 430 MW (effectively 405 MW) due to reduced capacity at the Gilmanuk PLN facility. Peak power demand during night time hours in Bali can reach 445 Mw.

In order to avoid further exacerbating the current crisis, PLN authorities in Bali are asking hotels and restaurants to switch to gensets, when available, during peak usage hours. PLN is also asking all consumers to reduce power consumption, wherever possible.