This article will walk you through a step-by-step procedure on creating a Power BI report from an oData feed without Excel.

We recently had a lot of new announcements about PowerBI, embedding components such as Power Pivot, Power Query, Power Map, enabling auto refresh, etc... So I decided to roll up my sleeves and get into it with my new Project Online demo tenant. 

More details here:

http://psbehindthescene.blogspot.fr/2015/07/my-first-power-bi-report-whitout-excel.html