Ngokukhula kwemarike yamandla amatsha kunye nokuhlangabezana neemfuno zexesha lokuhanjiswa kwabathengi, kutsha nje i-Shenzhen REO Power Co., Ltd yongeze umgca wePlug-in ukuhlangabezana neemfuno zomgca wokudityaniswa kwi-inverter yelanga kunye (Ubonelelo lwaMandla olungaphazamisekiyo lwe-UPS)