System Operator NI, which operates the power grid, says it is working with the regulator and Stormont to "unlock restrictions".
Three large-scale fossil fuel applications in one council area have had permission quashed.
It is the first time the power station has used gas following the end of coal generation last year.
Concerns have been raised about the transition away from NI's last coal fired power station.
The grid operator has warned that action needs to be taken over issues with Kilroot power station.
There has been a call to clarify what will happen to stocks of red diesel held by some of NI's power stations.
