<prompt> Translate the following text to EnglishKwa teknolojia ya chini ya ufanisi wa nishati kupenya soko, kiwango kikubwa cha vifaa vya kudhibiti lazima kuwekwa na kuendeshwa ambayo, kwa upande wake, inaendesha juu ya gharama ya uzalishaji.  <response>: With less energy efficiency technology penetrating the market, a greater level of control equipment must be installed and operated which, in turn, drives up the cost of generation. 