1.Kuthamanga kumathamanga kwambiri ndipo mphamvu zopangira ndizokwera. Poyerekeza ndi makina otsika-liwiro, zotulutsa ndi kugwiritsa ntchito mphamvu panthawi imodzimodzi zili ndi ubwino woonekeratu.
2.Zida zamagetsi zamagetsi monga Mitsubishi, Yaskawa, ndi zina zotero, ndizodalirika komanso zabwino pambuyo pogulitsa.
3.DC yaikulu galimoto, ali ndi moyo wautali ndi ntchito khola ndi odalirika. Ma motors a DC amathanso kukhazikitsidwa m'malo ena.
4.Malinga ndi cholinga chenichenicho, tikhoza kupereka ndondomeko yoyenera yopangira mikwingwirima.