Remote Monitoring - Revenue/Investment Return Rate
Can someone advise on how the revenue/investment return rate is calculated? It would seem as though it's working off a simple 'cost per unit' x 'PV generated' (p/kWh x PV). For my instance, 27p/kWh. 27p x 6.2kWh = £1.70. This would be fine if every kWh of PV was used in it's entirety. Is there some way to factor in load, charge, import and export. i.e. I'm not using all the power generated, so it's not all an investment return as such. A lot of my PV is exported after demands are met and batteries are charged. Exporting at 5.5p/kWh is not saving me 27p/kWh... Every kWh of load is a profit of 27p Every kWh of battery charge is a profit of 27p Every kWh exported is a profit of 5.5p Every kWh imported is a loss of 27p (Load + Battery Charge + Export) - Import = £0.99 Because of the above, revenue/investment return rate is a little generous (+60% today) - if I understand it correctly... Thanks!
It does give the highest figure, but unfortunately it's incorrect and somewhat arbitrary. Would there be any merit in adjusting my p/kWh figure in order to get a more accurate reflection on savings?