For many years (2018 ish) I have used Victron VRM to log telemetry from my solar panels in an off-grid environment far out in the wilderness in northern Sweden. For this to work during the winter period when there is little sun, a PI with maximum energy saving (CPU and memory speed, etc) was needed.
Now I only see that the history is gone and it is very sad. I really understand that Victron cannot offer this for free but I do not see that there is any way to pay for it either.
My wish is to pay for this service and be able to save as many years as I want, can be aggregated depending on age but so that it remains for analysis over a long time.
Thank you Victron for fantastic products and services.