Anchor: 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.
Entailed: There is another approach that would solve this issue.
Contradiction: There are no other alternatives when it comes to dealing with the retrofitting issue. 
Contradiction: The people are sleeping on the couch.
Contradiction: One can continue.
Contradiction: With the arrival of the new spa, the town became a quiet, relaxing place to live.
Contradiction: Some people are near a body of water.