Chogulitsachi ndi njira yosungiramo mphamvu yopanda grid.Amapangidwa kuti athetse vuto la kugwiritsa ntchito mphamvu kwa zida zazikulu zonyamula katundu m'nyumba kapena m'maofesi omwe amagwiritsa ntchito mphamvu zambiri, monga ma air conditioners, mafani amagetsi, mafiriji, zophika zopangira, zophika mpunga, ma ketulo, makompyuta apakompyuta, osindikiza ndi ma router.