Basic Energy Cube (mekanism:energycube - 5793:0) has NBT data

{tier:0,mekData:{energyStored:2000000.0d}}

TAG_Compound (10) ('')
{
    TAG_Int (3) ('tier'): 0
    TAG_Compound (10) ('mekData')
    {
        TAG_Double (6) ('energyStored'): 2000000.0
    }
}
