Solar Power: what’s up, sunshine?

So, it's been over eight months six since I had my photovoltaic (PV) array and battery installed on the back of grant aid from the Sustainable Energy Authority of Ireland (SEAI). As promised, here’s my follow up report with all the figures. Thanks for the requests on Twitter bright sparks.
I’ve emerged from the full blaze of a tropical Irish summer and a relatively bright, soft winter with more managed expectations of domestic photovoltaic. We’re not wholly disappointed. It’s shining feebly here at 11am on an early March day, and we are off grid with a tank of hot water from the water diverter and steadily climbing battery storage.