When I talked to Pentair last year after I discovered I had an AG pump, they suggested a 3/4 hp whisperflow.

From what I've been able to tell, I don't know how much it would save me in electricity. The 1 hp dynamo pump I have is rated at 12 amps. I believe the 3/4 whisperflow is 11 amps. Am I missing something? This is all new to me.