MODULAR SYSTEM FOR AN AUTONOMOUS ELECTRICAL POWER SUPPLY ON CAPE CLEAR ISLAND

Ziel

Construction of a modular system for an autonomous electrical power supply system on the Irish island of Cape Clear, consisting of two MAN Wind turbines of 30 KW each, one diesel generating set of 72 KW, which will be added to the existing ones and a short term battery storage, in order to show the principal function and efficiency of such system. The total estimated energy production is 200 MWh of which 60 MWh from the diesel aggregate. The estimated energy produced by each wind turbine is about 70 MWh annually.
The wind turbines were installed in October 1986 and are since then in operation. The control system, the battery storage and the 72 KW diesel generator were installed in August 1987.
The mean wind velocity in 1987 was 9. 7 m/s and the total energy consumption of the island for the same period amounts 338 MWh. From the overall energy consumption (of the reporting period), wind supplied 70%, the diesel set 31% and the batteries 11%, while the battery storage input was 12%.
Following a damage in the battery storage system and the local utilities unwillingness to take over the operation of the system, only the wind turbines were still in operation in the beginning of 1993. The future of the project is uncertain due to the scheduled connection of the islands to the mainland grid. The ultimately very bad relationship between ESB and SMA have considerably detracted form the outcome of the project
The inhabitants of Cape Clear were very positive to the project and hence convinced to theviability of wind energy. Two systems very similar to this have been installed, one in China and one in Northern Ireland. Ten diesel battery systems have been installed in Australia.
Two AEROMAN wind turbines of 30 KW each have been installed on the Irish island of Cape Clear and have been connected to a 72 KW diesel aggregate and a 100 KWh short term HAGEN battery storage in order to create a modular system for an autonomous electrical power supply and to demonstrate the principal function and efficiency of such system. The average windspeed on the island lies above a yearly average value of 7. 8 m/s and wind conditions are better during the winter period than in summer.
There are five essential operation modes which differ in the mode of frequency control, while voltage control is maintained by a small synchronous generator. The actual grid frequency is taken as base value for the plants control unit :
1. Parallel operation of WECs and diesel engine
2. Parallel operation of the diesel generator and the battery storage
3. Parallel operation of the WECs and the battery storage
4. Single operation of the storage system
5. Parallel operation of WECs, diesel andbattery. The minimum load is
about 15 KW and the maximum one about 120 KW.
The total annual yield has been estimated to 200 MWh of which 60 MWh from the diesel aggregate, with an estimated cost per unit of DM 0. 50, while a conventional solution (only diesel) has a cost of DM 0. 25/KWh.
The project will be realized in cooperation with the firme MAN-Neue Technologie and Kassel/University des Landes Hessen and the National Board for Science and Technology in Ireland.

Programm/Programme

ENG-ENALT 2C - Programme (EEC) of demonstration projects relating to the exploitation of alternative energy sources and to energy saving and the substitution of hydrocarbons, 1983-1985

Thema/Themen

Data not available

Aufforderung zur Vorschlagseinreichung

Data not available

Finanzierungsplan

DEM - Demonstration contracts

Koordinator

SMA REGELSYSTEME GMBH

EU-Beitrag

Keine Daten

Adresse

HANNOVERSCHE STRASSE 3
3501 Niestetal
Deutschland

Gesamtkosten