More and more about NS-2

To set different initial energy to every node

# set initial energy for first node
$ns node-config -initialEnergy 50
set node_(0) [$ns node]

# set initial energy for second node
$ns node-config -initialEnergy 100
set node_(1) [$ns node]

# set initial energy for third node
$ns node-config -initialEnergy 70
set node_(2) [$ns node]

and similarly for more nodes...

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