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hydroelectric power
Question | Answer |
---|---|
when did irish free state look to shannon as a source of hep? | 1920s |
when did the shannon scheme begin? | it began in 1925 and took 4 years to complete. in 1929 it was the largest power plant in the world |
what is then name of the power plant | Ardnacrusha in the lower course of the shannon. |
where is the river course was it built | in the lower course as it is the steepest part of the river, as it falls 30m in 20km |
what were built in parteen | a weir and canal. The weir directed 2 thirds of the water from the shannon to the Headrace canal and caused 3 loughs to ride eg. lough derg |
from the weir the water flows for 12.8 km along the canals to the turbines | |
how were the canals built | by building embankments of up to 18m in height to stop the surronding land from flooding |
positive impacts | made shannon accessible for tourism eg lough derg ardnacrusha was capable of porducing enough electric power to supply to whole of ireland |
negative impacts | the wamount of water flowing downstream is greatly reduced fish stocks are depleted on the lower course of the shannon winter floods have become more severe |