Question

우리 아파트에 전기를 연결해 주십시오 As a location marker, -에 corresponds to 'in' or 'at'. In this usage, -에 marks a place where someone or something is located and remains in a static state. -에서 is used instead of -에 when talking about locations where dynamic actions are performed.

Accepted Answer

I'd like to have the lights turned on in our apartment

Front	우리 아파트에 전기를 연결해 주십시오
Back	I'd like to have the lights turned on in our apartment
Notes	As a location marker, -에 corresponds to 'in' or 'at'. In this usage, -에 marks a place where someone or something is located and remains in a static state. -에서 is used instead of -에 when talking about locations where dynamic actions are performed.

에 우리 아파트에 전기를 연결해 주십시오 Lights Turned