I haven't any idea "how can i sell my hashpower". I'm just using ETHMINER and i dont have knowledge about cgminer or else. I think i have to search them quickly.
Why not contact the mod --ck and find out more about it (he says he is the founder of cg miner and is quite useful for knowledge of mining).
If you search for NiceHashMiner on the foru, you will be directed to the download. Download it on the control computer and run it to earn possibly slightly more than you would earn.
Here is the github link:
https://github.com/nicehash/NiceHashMinerrun
git clone "https://github.com/nicehash/NiceHashMiner"
if possible on a linux machine.
Otherwise follow the link and download as a ZIP
OR
download the git shell on windows or mac.
If you are unsure about the installation files, I could create you a file for linux for it to install correctly. It is already built to run directly of windows with the windows ZIP folder.
It also recieves payment in bitcoin and you can cange the algorithm.