Sababaha ugu waaweyn ee cilladda waa soo boodboodka shimbiraha, wareegga gaaban ee walxaha buulka shimbiraha iyo wareegga gaaban ee jirka shimbiraha. Waxaa ka mid ah, safarka khadka ee ay sababto saxarada shimbiraha biyaha waaweyn sida ardeidae iyo gorgorku waxay ka dhigan yihiin qiyaastii 90% cilladda dhaawaca shimbiraha ee khadka gudbinta, taas oo ah sababta ugu weyn ee safarka shimbiraha ee khadka gudbinta. Qalabka buulka shimbiraha wareegga gaaban, wareegga gaaban ee jirka shimbiraha oo ay keento albaabka wareegga ayaa inta badan ka dhacay wareegga qaybinta. Sidaa darteed, diiradda khadka gudbinta.jeexjeexyada shimbiraha ee ka hortaggawaa in laga hortago waxyeelada shimbiraha ay keenaan shimbiraha waaweyn.jeexjeexyada shimbiraha ee ka hortaggawaa irbad bir ah oo lagu dhejiyay munaaradda si looga hortago shimbiraha waaweyn inay ku dhaqaaqaan munaaradda si looga hortago shinbiraha oo ku soo dhacaya. Qaniinyada ka hortagga shimbiraha waxaa inta badan loo adeegsadaa si looga hortago shinbiraha qaranka ee ku jira xariiqda laga bilaabo 110 kv ilaa 500 kv.