How does Io's energy budget, supported by tidal heating, compare to Europa's?

Answer

Io receives far more energy, supporting molten rock globally.

While Europa has tidal heating sufficient for a liquid water ocean, Io receives orders of magnitude more energy, which supports molten rock (silicate and sulfur) on a global scale.

How does Io's energy budget, supported by tidal heating, compare to Europa's?
GeologyPlanetary SciencemoonsVolcanismIo