My unit was installed at the same time that my 3.64kW PV system was commissioned. After installing a 210 litre Dimplex cylinder for the heat pump, hot water was provided solely by the immerSUN from May 13 last year, right up until September 13. It is currently performing the same service this year.
After 17 months the unit has transferred over 1.1 MW of power that would otherwise have been exported to the grid. A fantastic result by any standard.
Well done 4eco.