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~ Sumber Energi Alternatif Dari Ombak Laut

Alpen Steel | Renewable Energy


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~ Sumber Energi Alternatif Dari Ombak Laut

Gelombang Laut Dapat Dijadikan Sumber Energi Alternatif

Cadangan sumber energi fosil seperti minyak bumi di Indonesia semakin menipis. Oleh karena itu energi alternatif mulai dilirik untuk memenuhi kebutuhan energi. Salah satunya adalah gelombang laut. "Pembangkit listrik tenaga gelombang laut (PLTGL) sistem bandulan (SB) bisa jadi alternatif. Alatnya mudah dioperasikan, ramah lingkungan, daya yang menjanjikan 500 KW, dan harga investasi bersaing US$ 2.000 per kilowatt (KW)," kata pejabat PLN Sumatera Barat Zamrisyaf Sy pada acara seminar pengembangan sumber energi baru dan terbarukan di Gedung BPPT, Jalan MH Thamrin, Jakarta, Kamis (31/8/2006). Cara kerja pembangkit listrik ini dengan memanfaatkan gelombang laut. Alat bernama ponton diapungkan di laut. Di dalam ponton terdapat bandul yang akan mengayun mengikuti gelombang laut lalu menghasilkan listrik. Dalam satu ponton bisa terdapat lebih dari 1 bandul.

"Tergantung dari tinggi periode dan panjang gelombang," ujar dia. Estimasi daya yang dihasilkan dari 1 unit PLTGL SB yang terdiri dari 3 ponton adalah 360 KW dengan catatan 1 ponton terdiri dari 12 bandul dan sudut ombak 30 derajat. Pantai dengan panjang 1 km bila memanfaatkan PLTGL SB dan menghasilkan lebih kurang 7,5 MW listrik. "Daya itu cukup untuk memenuhi kebutuhan listrik 12.500 rumah tangga sederhana," jelas dia. Walau di Indonesia belum ada sistem pembangkit ini, dia mengatakan, Indonesia sangat cocok untuk sistem ini karena wilayahnya berbentuk kepulauan dan tinggi ombaknya 1-2 meter. "Potensi PLTGL di Indonesia mencapai 61 gigawatt karena kita punya panjang pantai 81.290 km," jelas Zamrisyaf Sy. (san/)

Jakarta - 

Gagah Wijoseno - detikNews

 

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