RE:RE:RE:RE:Can someome explain please?You've kinda got me confused there destinator. Thailand is not an island it is part of Asia. Taiwan is an island off China. They are not the same place. I think the "reserve" they are talking about is spinning reserve. It is when generating plants are operating but not producing power to the grid. In the case of steam turbines the machine is spinning at grid frequency but there is no load on the generator.The operators can very quickly load up the turbine to full power by adjusting the AVR (Automatic Voltage Regulator) on the generator which produces the magnetic field and thus the electricity we consume. It is quite expensive to keep fossil fuelled plants in this configuration but it is easy for nuclear plants since the cost is almost nothing. So my guess is that was what they were talking about. On an island with no external power links the spinning reserve would need to be higher because you are not connected to another grid system...basically all on your own...so you do need to keep a fairly big spinning reserve to manage the peaks of the electricity consumption. At all times electricity demand must equal supply (or vice versa) so if there is too much demand generators will slow down and the grid frquency drops and all electric motors connected to it will slow down. To stop generators slowing down you must increase the supply which means ramping up the power on the spinning reserve generators....in some situations it needs to be done very quickly hence the need to have the generators already operating and ready to go.
I hope that helps you understand it a little better. It is a whole lot more complex than that of course but basically that is how it works.
Best Regards
Malcolm