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| India Infoline Sector Reports | Wed, 18-Feb-2004 16:50:28 IST (GMT+5:30) | |
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Annexure Key Concepts Measure of capacity : Power plant capacity is denoted in terms of the maximum power that can be generated at any point of time, ie 1 mw plant can provide maximum power output of 1mw (which is equivalent to 1000 KW) of power at full capacity. Plant load factor (PLF) : Power (electricity) storage is not feasible. Hence generation of power is controlled to match offtake. For whatever duration a power plant generates below its full capacity, to that extent it is a capacity loss. Plant Load Factor is a measure of average capacity utilization. PLF is affected by non-availability of fuel, maintenance shut-down, unplanned break down and no offtake (as consumption pattern fluctuates lower in nights), generation has to be adjusted. Measure of power generation/consumption : Power utility companies bill customers on the basis of ‘units’ of power used. 1 unit i.e.1 KWH (Kilo Watt Hour) is consumption of 1 KW for 1 hour. In one year, a 1 MW power plant, operating at 68.5% PLF, will produce 1 MW Hours Days PLF 1000 x 24 x 365 x 0.685 KWH ie. 6mn units of power. Transmission and distribution (T&D) losses are the difference between units of power supplied by the power plant and units of power metered (billed) to the customers. T&D losses are caused by Technical factors, eg. Energy loss in voltage step up/down. Commercial losses due to malfunctioning of energy meters. Theft/Pilferage by spurious, unbillable users.
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