Isolated systems with wind power. Results of measurements in Egypt

The objective of the measurements were to characterise different types of consumer loads in order to be able to construct load patterns to be used in feasibility studies where the available data often will be incomplete, not available or not existing. Measurements have been carried out at five different sites. Three of the sites were in Hurghada, where the power system is rather large. The last two measurement sites were at village systems: one large system and one with only power ca. five hours perday. The measured load profiles were quite different at the different sites. The power quality at the different sites was adequate even at the small village sites where the load is almost constant. The impact of different load profiles on the technicaland economic performance of a wind diesel system in the feasibility phase was investigated. The results indicate that when the profile has low values for a long time each day the impact on fuel consumption and profit is significant. However, if the loadprofile is not so extreme the annual development of the energy consumption is more important. Since development of the load is often very rapid at relevant sites, emphasis should be put at determining this feature rather than the load profile.