I am not sure if this applies to all of the estate but last night we had a few short power cuts. We are continuing to have short cuts again today.
This morning the power has mostly been back on but the voltage has been very low. My UPS is signalling that it has been transferring the voltage which it shows was around 200v (the nominal voltage for our supply is 240 - 250v). It should not affect most devices except for those that are sensitive.