|
| |
Fair Isle Renewable Energy Electricity System
| Summary
of data for January 1999 |
60kW Turbine |
100kW Turbine |
|
Hours |
% |
Hours |
% |
Hours
in month |
744 |
|
744 |
|
Hours
available (brake off) |
731 |
98.3 |
736 |
98.9 |
Hours
generating |
662 |
89.0 |
666 |
89.5 |
Hours
feeding service |
489 |
65.7 |
497 |
66.8 |
Hours
in synchronisation |
488 |
|
488 |
|
|
|
|
|
|
Energy
produced kWh |
22,633 |
|
32,926 |
|
Energy
utilised kWh |
18,032 |
|
25,636 |
|
Energy
dumped kWh |
4,601 |
|
7,290 |
|
|
|
|
|
|
Load
factor |
|
50.7 |
|
44.26 |
|
|
|
|
|
Hours
of service (all sources) |
677 |
91.0 |
|
|
Hours
of service (diesel) |
179 |
24.1 |
|
|
Energy
provided by diesels kWh |
3,083 |
6.6 |
|
|
|
|
|
|
|
Current
guaranteed supply |
496 |
|
|
|
Hours
diesel generation replaced by wind |
317 |
|
|
|
Service
hours extended by wind energy |
181 |
|
|
|
Utilisation
of wind energy |
|
78.6 |
|
|
January has had fewer hours of strong generating
winds and more calm periods, hence the 60kW turbine did not generate for 69 available
hours, and the 100 kW turbine did not generate for 70 available hours. The 60kW turbine
was out of service for 13 hours and the 10OkW turbine for 19 hours in the month. Despite
decreased consumption less energy, 11,891 kWh [17,998 kWhI was lost to dump. The increase
in diesel generator usage is mainly attributable to the addition of an extra 76 hours to
the guarantee period for the month.
|
