In Homey Insights (web version) you can export any insights to .csv. If you want to automate that export, you can use another app I made: [APP][Pro] Archive Insights - export all your Insights data to a NAS, FTP or web folder
In the DAP device settings you can add any fixed costs per kWh. But if the transfer cost is not per kWh, but e.g. per day, you can only add it as fixef cost in the summarizet device.
