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We present the GAMA Panchromatic Data Release (PDR) constituting over230deg$^2$ of imaging with photometry in 21 bands extending from the far-UV tothe far-IR. These data complement our spectroscopic campaign of over 300kgalaxies, and are compiled from observations with a variety of facilitiesincluding: GALEX, SDSS, VISTA, WISE, and Herschel, with the GAMA regionscurrently being surveyed by VST and scheduled for observations by ASKAP. Thesedata are processed to a common astrometric solution, from which photometry isderived for 221,373 galaxies with r<19.8 mag. Online tools are provided toaccess and download data cutouts, or the full mosaics of the GAMA regions ineach band.  We focus, in particular, on the reduction and analysis of the VISTA VIKINGdata, and compare to earlier datasets (i.e., 2MASS and UKIDSS) before combiningthe data and examining its integrity. Having derived the 21-band photometriccatalogue we proceed to fit the data using the energy balance code MAGPHYS.These measurements are then used to obtain the first fully empiricalmeasurement of the 0.1-500$\mu$m energy output of the Universe. Exploring theCosmic Spectral Energy Distribution (CSED) across three time-intervals(0.3-1.1Gyr, 1.1-1.8~Gyr and 1.8---2.4~Gyr), we find that the Universe iscurrently generating $(1.5 \pm 0.3) \times 10^{35}$ h$_{70}$ W Mpc$^{-3}$, downfrom $(2.5 \pm 0.2) \times 10^{35}$ h$_{70}$ W Mpc$^{-3}$ 2.3~Gyr ago. Moreimportantly, we identify significant and smooth evolution in the integratedphoton escape fraction at all wavelengths, with the UV escape fractionincreasing from 27(18)% at z=0.18 in NUV(FUV) to 34(23)% at z=0.06.  The GAMA PDR will allow for detailed studies of the energy production andoutputs of individual systems, sub-populations, and representative galaxysamples at $z<0.5$. The GAMA PDR can be found at: http://gama-psi.icrar.org/

Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV --- far-IR) and the low-z energy budget