We need to name this thing. When plants are grown in water and supplied artificial nutrients its called hydroponics.
The cow heart powered generator is similar, the hearts would need 4 things.
1. A working fluid inside the heart to pump thru the generator.
2. A fluid to submerse the heart in to support it.
3. Oxygen in the fluid.
4. Artificial nutrients in the fluid.
If you have a suggestion on what to name the cow heart powered generator please post it.

You all watch the MATRIX?  Where they use humans for power?
http://whatisthematrix.warnerbros.com/

The original movie is great, but 2 and 3 aren't worth watching.

During peak electrical demand give the cow hearts coffee and they will beat faster.

Crickets are obnoxious creatures, the best way to shut - up a cricket is to grind it up into mush and use it to feed a cow heart  powered  generator.

I am trying to name the cow heart powered generator.
Heart Power, or HP