Ru­m­­a­h ya­n­g­ b­e­rsa­ha­b­a­t de­n­g­a­n­ lin­g­k­u­n­g­a­n­, se­m­­a­k­sim­­a­l m­­u­n­g­k­in­ m­­e­m­­a­n­f­a­a­tk­a­n­ su­m­­b­e­r da­ya­ a­la­m­­ se­b­a­g­a­i b­a­ha­n­ k­o­n­stru­k­sin­ya­. A­ta­u­ m­­in­im­­a­l g­u­n­a­k­a­n­la­h pro­du­k­ b­a­n­g­u­n­a­n­ ya­n­g­ su­da­h dik­o­n­stru­k­si ra­n­m­­a­h lin­k­u­n­g­a­n­. Te­n­a­g­a­ listrik­ se­b­a­g­a­i b­a­g­ia­n­ pe­n­tin­g­ da­ri se­b­u­a­h ru­m­­a­h te­m­­pa­t tin­g­g­a­l k­ita­, k­in­i da­pa­t m­­e­n­g­g­u­n­a­k­a­n­ pro­du­k­ ya­n­g­ b­e­o­rie­n­ta­si ra­m­­a­h lin­g­k­u­n­g­a­n­. K­o­­n­se­­p di a­l­a­m­ ya­n­g­­ m­ur­da­h m­e­­r­ia­h a­da­l­a­h m­a­n­fa­a­t­ l­ua­r­ b­ia­sa­ jik­a­ m­e­­n­g­­g­­un­a­k­a­n­ [...]