129MWhr Battery Doing its Job Down Under.

Ok, by “stability”, I am meaning that if you have a short circuit, loss of load, or loss of generation, how long does the grid remain stable without collapsing / shedding customers. This is usually measured in seconds, and can range from a second or less for small systems to tens of seconds for a large power system. This “inertia” buys the power system operators time to correct the initial fault that has upset the balance between load and generation. 


As an example, last August’s partial UK blackout was an example of what happens when there is insufficient inertia to allow the system to be rebalanced. The cost of having that inertia available from conventional rotating plant is another issue. What effectively happened is that automatic systems took over to shed load and rebalance the system, albeit with a number of customers temporarily disconnected. It did however do its job, as the vast majority of the power system remained operational and supplying customers. 


Regards,


Alan. 

Ok, by “stability”, I am meaning that if you have a short circuit, loss of load, or loss of generation, how long does the grid remain stable without collapsing / shedding customers. This is usually measured in seconds, and can range from a second or less for small systems to tens of seconds for a large power system. This “inertia” buys the power system operators time to correct the initial fault that has upset the balance between load and generation. 


As an example, last August’s partial UK blackout was an example of what happens when there is insufficient inertia to allow the system to be rebalanced. The cost of having that inertia available from conventional rotating plant is another issue. What effectively happened is that automatic systems took over to shed load and rebalance the system, albeit with a number of customers temporarily disconnected. It did however do its job, as the vast majority of the power system remained operational and supplying customers. 


Regards,


Alan.