An installation comprising an LNG production facility, and a renewable electricity facility for producing renewable electricity, the LNG production facility comprising: a plurality of units, at least one thermal energy storage system for storing electricity as thermal energy, and for converting at least part of the stored thermal energy into electricity, heat and/or cold.

The installation is adapted for switching between a charge configuration, wherein the renewable electricity facility produces said renewable electricity stored in the thermal energy storage system and supplied to one or several of the units, and a discharge configuration, wherein the thermal energy storage system converts some of the stored thermal energy into at least one of said electricity, heat or cold, for supplying one or several of the units.

An apparatus and process for recycling hydrogen can be provided so that hydrogen is recycled during hydrogen liquefaction processing to account for an unexpected loss of feed of hydrogen so the recycled hydrogen can be provided to avoid liquefier operations having to be shut down. Embodiments can utilize a parahydrogen to ortho-hydrogen conversion unit to facilitate such recycling of hydrogen to avoid liquefaction processing problems in liquefaction of the recycled hydrogen included into the feed to account for the loss of fee hydrogen.