I guess I'd go with:
[b]Manipulate Energy:[/b] Whereas before Cirno was only able to reduce the energy a given object had, Cirno now has the ability to add energy to something as well as remove it.
[b]Energy Conversion I:[/b] The ability to convert stored energy gathered from the environment into physical power.
[b]Additional Spectra I:[/b] Further expand the frequency of radiation Cirno can manipulate by 1 "block" (Up to UV and down to Radio)