Yes, quasars are galaxies where the central black hole is turned on and consuming material.
Electrical Energy is coverted into heat energy.
Chemical energy is produced. Actually light energy is converted
Batteries are designed to produce electrical energy.
Yes
More precisely, quasars are high-energy galaxy CORES, compact enough to appear starlike, yet emitting more radiation than a million "ordinary" galaxies.
Sound energy and Light energy
Well, we don't really know how they are formed, the most likely explanation is: Quasars are formed by enormous redshifts in a star which gives it, it's energy.
A Supernova Explosion
The main types of energy produced by appliances are: heat, light, kinetic, sound
No. Quasars have the highest energy output of any type of object in the known universe.
Sure - they can't produce energy out of nothing, since that isn't possible.