I whakarewahia te riu keri 420GF photovoltaic hurihuri, te otinga tino pai mo nga mahi maunga-nui. Ko te miihini whakahiato solar kua rite ki te horahanga hei paerewa, koinei te mea pai rawa atu mo te whakauru i nga puranga photovoltaic nui-aperture me te ultra-nui-aperture. Ka tangohia e te rig keri he hoahoa mahunga hurihuri teitei me te taipana ki runga ki te 8000N/M ki te whakarite kia tutuki nga hiahia o te Φ176-300-400mm mahi puranga solar.