Energy is already being sold to network...was wondering if is worth switching to BTC...
No. With the added costs.. If you are selling at 0.1$/kWh, the added material cost you would itself need to ROI make this a waste of time, effort for the money you MIGHT profit back.
Basically just as 0.1$/kWh cost for miners pretty much make it pointless to mine, you being able to sell it at 0.1$/kWh means your odds of profiting more than what you're already selling your electricity at aren't worth building a mega datacenter to house thousands of miners.