Hello,
There is a similar topic about exporting data and importing it in another platform: [Manually importing a CSV file to update inventory quantity](Manually importing a CSV file to update inventory quantity
What you need is an automation service that gets the data from your Baserow table once a day and imports it in Power BI. An automation service like Make has building blocks for both Baserow and Power BI, so you can set up such a service without any coding knowledge or having to dive into the Baserow API.