SolarAid

I monitored the forecast generation and compared it with the actual generation of my 3 kWp array for about a month. Overall it slightly underestimated my generation but on a daily basis it could be extremely inaccurate with generation often half or twice the forecast. Today has been an extreme example. 9.8 kWh forecast, 2.3 kWh generated. Quoting half hourly forecasts with a precision of 1 Wh (3 decimal places kWh) is ridiculous.

The app handles up to 3 (differently facing) arrays of panels. Values show good agreement with my observations and so I highly recommend this app. Since one typically wants to minimise home generated exports of electricity it does help one to plan tomorrows energy intensive activities (dish washer, washing machine, tumble dryer, electric oven/air fryer).

Added a 3.5 kw west array to my old 2.5 kw south array plus a 10kw libbi, zappi and eddi. This is exactly what I was looking for. You should be talking to Myenergi to integrate this with their app. Great work!