Dear Christine
What do mean by consumption of material.
Are you looking for sales orders for respective plant for each article. You can go to T-code VA05 in SAP ECC to see all the sales orders for respective period.In case you are looking for planned independent requirement for each plant, you can view them in SAP ECC using MD63:
In case you are using APO, you can go to /SAPAPO/RRP3 - Product View to see all the details.
I hope this information helps you.
Thanks
Amol