Another alternative approach would involve retrofit of more than one unit at a time during low-demand periods and avoiding any outage during high demand periods.
There is another approach that would solve this issue.
There are no other alternatives when it comes to dealing with the retrofitting issue.
A woman talks.
A man is washing his car.
A pilot is on the plane.
A Moorish wall encircled the Mayerit Settlement.
The chef is enjoying his day off.
The boy jumps from picnic table to another.