Sitima Yokwera
1. Zida zamphamvu kwambiri: zopangidwa ndi aluminiyamu yapamwamba kwambiri kapena zitsulo zosapanga dzimbiri, zotsutsana kwambiri ndi dzimbiri ndi mphepo yamkuntho, yoyenera nyengo zosiyanasiyana.
2. Kukonzekera Mwachindunji: Njanji zimakonzedwa bwino kuti zitsimikizire kuti malo olumikizirana ndi okhazikika komanso olimba, osavuta kukhazikitsa.
3. Kugwirizana kwamphamvu: Zapangidwa kuti zigwirizane ndi mitundu yambiri ya ma modules a dzuwa ndi makina opangira ma racking, kutengera mitundu yosiyanasiyana ya zosowa zoyika.
4. Kusalimbana ndi Nyengo: Njira yochiritsira yapamwamba kwambiri imalepheretsa dzimbiri ndi mtundu kuzirala, kumatalikitsa moyo wazinthu.
5. Kuyika kosavuta: Perekani malangizo atsatanetsatane oyika ndi zowonjezera, zosavuta komanso zofulumira, kuchepetsa ndalama zogwirira ntchito.
6. Mapangidwe amtundu: njanjiyo imatha kudulidwa ndikusinthidwa malinga ndi zosowa, zosinthika kuti zigwirizane ndi mayankho osiyanasiyana oyika.