1) Symmetrical graph (on cloudless, volcano-ash-hazy day) centred on noon. 2) Loss of one PV string on east roof due to wiring error on 16th, thus running with 1.29kWp east and 1.29kWp west (half of available on each). 3) 12th & 16th lost most of generation during inspection/(re)wiring. 4) One string on east not reconnected until evening of 19th April. 5) New string brought on-line mid-afternoon 26th April.