I thought the old meters were all bidirectional (ie: the spinning wheel could go backwards if you back-fed). Dunno what older gen “smart”meters would do. But I

I thought the old meters were all bidirectional (ie: the spinning wheel could go backwards if you back-fed). Dunno what older gen “smart”meters would do. But I guess the newer meters are capable of paying you some reduced/enhanced rate for backfeeding? > installing (without charge) Who’s paying for it?