Add spaces: TheheartofthisoperationistheSolarNexus,asmalldevicethatlinkswires,transformers,converters,inverters,andbatteriesrequiredinanoff-gridelectricitysystem.
The heart of this operation is the SolarNexus, a small device that links wires, transformers, converters, inverters, and batteries required in an off-grid electricity system.