Choyamba, chithandizo chamadzi ndi gawo lofunika kwambiri la mfundo ya jenereta yoyera ya nthunzi.Pa sitepe iyi, madzi amadutsa zida zochizira kale, monga zosefera, zofewa, ndi zina zotero, kuchotsa zolimba zoyimitsidwa, zowonongeka zowonongeka ndi zinthu zowuma kuti zitsimikizire chiyero cha madzi.Ndi madzi okhawo omwe amatha kulowa mu sitepe yotsatira kuti atsimikizire mtundu wa nthunzi.
Chotsatira ndi njira yopangira nthunzi.Mu jenereta yoyera, madzi amatenthedwa mpaka kuwira kuti apange nthunzi.Izi zimachitika kawirikawiri pogwiritsa ntchito chinthu chotenthetsera monga chowotcha chamagetsi kapena choyatsira gasi.Panthawi yotentha, zonyansa ndi zinthu zowonongeka m'madzi zimasiyanitsidwa, kutulutsa nthunzi yoyera kwambiri.Panthawi imodzimodziyo, jenereta yoyera ya nthunzi idzatsimikiziranso kukhazikika ndi chitetezo cha nthunzi poyang'anira kutentha kwa kutentha ndi kupanikizika.
Gawo lomaliza ndi njira yoyeretsera nthunzi.Mu jenereta yoyera ya nthunzi, nthunzi imadutsa pazida zoyeretsera monga zolekanitsa, zosefera, ndi zochotsera chinyezi kuchotsa tinthu ting'onoting'ono, zonyansa, ndi chinyezi.Zidazi zimatha kusefa tinthu tolimba ndi madontho amadzimadzi mu nthunzi, kuwongolera chiyero ndi kuuma kwa nthunzi.Kupyolera mu njira yoyeretsera, majenereta a nthunzi oyera amatha kupanga nthunzi yapamwamba kuti akwaniritse zosowa za mafakitale ndi ma laboratories osiyanasiyana.
Choncho, jenereta yoyera ya nthunzi imatha kusintha madzi kukhala nthunzi yoyera kwambiri, yopanda zonyansa ndipo imagwiritsidwa ntchito kwambiri m'madera osiyanasiyana.Majenereta oyeretsa a nthunzi amagwira ntchito yofunika kwambiri pakuwongolera chilengedwe monga kunyowetsa kwa mafakitale ndi malo ochitira zinthu zaukhondo, monga chakudya, chakumwa, makampani opanga mankhwala, makina ophatikizika amagetsi ndi njira zina, kupereka zida zodalirika zamitundu yonse yamoyo.