What would happen if my computer shuts down while BitLocker is encrypting my OS partition?

I found this: BitLocker Drive Encryption in Windows 7: Frequently Asked Questions

According to Microsoft TechNet, you would be just fine.

This happened to me. I hard-reset the computer half way through decrypting, and when Windows came back up, it tried to resume decryption. It failed almost immediately with an error saying to run CHKDSK /R. After running that, the BitLocker decryption resumed and completed, without me even needing to restart the computer. There was no data loss, and I didn't have to repair anything besides the CHKDSK repair.