The nearest expiration date for ERCOT North 345 kV Hub 5 MW Off-Peak Futures (Feb 2014) is Mar 1, 2014.
The best time to sell a futures contract is when you've already made money on the investment, but still have plenty of time left before the expiration date. Thus, a good option would be to sell ERCOT North 345 kV Hub 5 MW Off-Peak Futures (Feb 2014) before Mar 1, 2014.