[NeilBlanchard]

Again, energy source |= power source.

Hybrid = combination

Synonyms:

* adjective: crossbred, mongrel, mixed
* noun: crossbreed, mongrel, cross, half-breed

*
hybrids plural

*
A thing made by combining two different elements; a mixture
o
the final text is a hybrid of the stage play and the film
*
The offspring of two plants or animals of different species or varieties, such as a mule (a hybrid of a donkey and a horse)
o
a hybrid of wheat and rye
*
A person of mixed racial or cultural origin
*
A word formed from elements taken from different languages, for example television (tele- from Greek, vision from Latin)
*
A hybrid car

A hybrid uses two (or more) power sources. Not two or more energy sources.