Curtailed Hydro from Wanapum Dam Crack: An ‘Unpredicted Change in the Wind’ ?

By steven d keeler | Mar 23, 2014

 

Ideally, hydropower is the best fit with stop-and-go wind power because of its very quick start up time.  But in the real world of structural and power engineering it doesn’t work out that way. If both the river is high and there are high winds, grid operators have to manage a situation of excess power. An ongoing conflict between wind farm operators and the Bonneville Power Administration (BPA’s) has been raging for some time over BPA’s policy of dumping wind power, euphemistically called “curtailment.” - See more at: http://www.masterresource.org/2014/03/hydro-wind-wanapum-dam-crack/#more-29775
Ideally, hydropower is the best fit with stop-and-go wind power because of its very quick start up time.  But in the real world of structural and power engineering it doesn’t work out that way. If both the river is high and there are high winds, grid operators have to manage a situation of excess power. An ongoing conflict between wind farm operators and the Bonneville Power Administration (BPA’s) has been raging for some time over BPA’s policy of dumping wind power, euphemistically called “curtailment.” - See more at: http://www.masterresource.org/2014/03/hydro-wind-wanapum-dam-crack/#more-29775
Ideally, hydropower is the best fit with stop-and-go wind power because of its very quick start up time.  But in the real world of structural and power engineering it doesn’t work out that way. If both the river is high and there are high winds, grid operators have to manage a situation of excess power. An ongoing conflict between wind farm operators and the Bonneville Power Administration (BPA’s) has been raging for some time over BPA’s policy of dumping wind power, euphemistically called “curtailment.” - See more at: http://www.masterresource.org/2014/03/hydro-wind-wanapum-dam-crack/#more-29775
Ideally, hydropower is the best fit with stop-and-go wind power because of its very quick start up time.  But in the real world of structural and power engineering it doesn’t work out that way. If both the river is high and there are high winds, grid operators have to manage a situation of excess power. An ongoing conflict between wind farm operators and the Bonneville Power Administration (BPA’s) has been raging for some time over BPA’s policy of dumping wind power, euphemistically called “curtailment.” - See more at: http://www.masterresource.org/2014/03/hydro-wind-wanapum-dam-crack/#more-29775

Ideally, hydropower is the best fit with stop-and-go wind power because of its very quick start up time.  But in the real world of structural and power engineering it doesn’t work out that way. If both the river is high and there are high winds, grid operators have to manage a situation of excess power. An ongoing conflict between wind farm operators and the Bonneville Power Administration (BPA) has been raging for some time over BPA’s policy of dumping wind power, euphemistically called “curtailment.”

During inspection, cracks were discovered in the concrete foundation, near the stator and rotor spider supports, at some hydropower stations in Sweden. The cracks were believed to be related to new patterns for generator operation, thereby changing the dynamic loading of the stator and rotor spider supports. Previously the generators ran continuously, while nowadays there are an increased number of stops and starts, sometimes even several times during one day. - See more at: http://www.masterresource.org/2014/03/hydro-wind-wanapum-dam-crack/#more-29775

 

During inspection, cracks were discovered in the concrete foundation, near the stator and rotor spider supports, at some hydropower stations in Sweden. The cracks were believed to be related to new patterns for generator operation, thereby changing the dynamic loading of the stator and rotor spider supports. Previously the generators ran continuously, while nowadays there are an increased number of stops and starts, sometimes even several times during one day.

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