05-12-2012, 01:31 PM
Diversity factor
[attachment=42604]
It is defined as the ratio of the sum of the individual maximum demands of the various parts of a power distribution system to the maximum demand of the whole system. -The diversity factor is always greater than unity. -70% diversity means that the device in question operates at its nominal or maximum load level 70% of the time that it is connected and turned on
Load factor
This is the ratio of average load over a certain time period and the maximum load during that time. The period of time could be a day, a week, a month or a year.
For example, the daily load factor is the ratio of the average load may be obtained by calculating the
total energy consumed during 24 hours (finding the area below the load vs. time graph) and then divided by 24. Load factor is usually expressed as a percentage
Capacity factor
This is the ratio of the average output of the hydroelectric plant for a given period of time
to the plant installed capacity. The average output of a plant may be obtained for any time period, like a day, a week, a month or a year. The daily average output may be obtained by calculating the total energy produced during 24hours divided by 24. For a
hydroelectric plant, the capacity factor normally varies between 0.25 and 0.75.
Utilization factor
Throughout the day or any given time period, a hydroelectric plant power production goes on varying, depending upon the demand in the power grid and the power necessary to be produced to balance it. The maximum production during the time divided by the installed capacity gives the utilization factor for the plant during that time.
The value of utilization factor usually varies from 0.4 to 0.9 for a hydroelectric plant depending upon the plant installed capacity, load factor and storage.
Firm (primary) power
This is the amount of power that is the minimum produced by a hydro-power plant during a certain period of time. It depends upon whether storage is available or not for the plant since a plant without storage like run-of-river plants would produce power as per the minimum stream flow. For a plant with storage, the minimum power produced is likely to be more since some of the stored water would also be used for power generation when there is low flow in the river.
[attachment=42604]
It is defined as the ratio of the sum of the individual maximum demands of the various parts of a power distribution system to the maximum demand of the whole system. -The diversity factor is always greater than unity. -70% diversity means that the device in question operates at its nominal or maximum load level 70% of the time that it is connected and turned on
Load factor
This is the ratio of average load over a certain time period and the maximum load during that time. The period of time could be a day, a week, a month or a year.
For example, the daily load factor is the ratio of the average load may be obtained by calculating the
total energy consumed during 24 hours (finding the area below the load vs. time graph) and then divided by 24. Load factor is usually expressed as a percentage
Capacity factor
This is the ratio of the average output of the hydroelectric plant for a given period of time
to the plant installed capacity. The average output of a plant may be obtained for any time period, like a day, a week, a month or a year. The daily average output may be obtained by calculating the total energy produced during 24hours divided by 24. For a
hydroelectric plant, the capacity factor normally varies between 0.25 and 0.75.
Utilization factor
Throughout the day or any given time period, a hydroelectric plant power production goes on varying, depending upon the demand in the power grid and the power necessary to be produced to balance it. The maximum production during the time divided by the installed capacity gives the utilization factor for the plant during that time.
The value of utilization factor usually varies from 0.4 to 0.9 for a hydroelectric plant depending upon the plant installed capacity, load factor and storage.
Firm (primary) power
This is the amount of power that is the minimum produced by a hydro-power plant during a certain period of time. It depends upon whether storage is available or not for the plant since a plant without storage like run-of-river plants would produce power as per the minimum stream flow. For a plant with storage, the minimum power produced is likely to be more since some of the stored water would also be used for power generation when there is low flow in the river.