A power analogy
Thursday, February 18, 2010
9:41 AM
Power analogy
If demand increases (air conditioning in summer), run more generators. 
If demand decreases (fall, spring: no heat or air conditioning), shut down generators. 
The (typical) SLA for home power: 
120VAC±10 VAC @ 60 cycles/sec, 100 Amps.
This analogy is more accurate than you might think!