|
| |
Fair Isle Renewable Energy Electricity System
| Summary of data for February 1999 |
60kW Turbine |
100kW Turbine |
|
Hours |
% |
Hours |
% |
Hours
in month |
672 |
|
672 |
|
Hours
available (brake off) |
637 |
94.8 |
649 |
96.6 |
Hours
generating |
642 |
95.5 |
644 |
95.8 |
Hours
feeding service |
542 |
80.7 |
565 |
84.1 |
Hours
in synchronisation |
525 |
|
525 |
|
|
|
|
|
|
Energy
produced kWh |
26,016 |
|
38,676 |
|
Energy
utilised kWh |
20,429 |
|
29,707 |
|
Energy
dumped kWh |
5,587 |
|
8,969 |
|
|
|
|
|
|
Load
factor |
|
64.5 |
|
57.55 |
|
|
|
|
|
Hours
of service (all sources) |
664 |
98.8 |
|
|
Hours
of service (diesel) |
84 |
12.5 |
|
|
Energy
provided by diesels kWh |
1,292 |
2.5 |
|
|
|
|
|
|
|
Current
guaranteed supply |
448 |
|
|
|
Hours
diesel generation replaced by wind |
364 |
|
|
|
Service
hours extended by wind energy |
216 |
|
|
|
Utilisation
of wind energy |
|
77.5 |
|
|
February has had more hours of good generating winds and virtually no calm periods
evident by the fact that in the whole month there were only a total of 8hrs. in which
there was no service supply. The 60kW turbine was out of service for a total of 29.5 hours
in the month, 20 of which were accounted for with the machine being manually shut down due
to storm conditions. The 10OkW turbine was out of service for 29 hours in the month. False
dump overload trips totalling 8.25 hours made up part of this time but since operator
adjustments to the relay overload have been carried out, no more false trips have
occurred.
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