Detail On its Own Sunny Path; Clean Energy in California   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 401 no. 8757 (Oct. 2011), page 39. Topik: Energy Policy; Emissions Trading; Alternative Energy Sources Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.68 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Jerry Brown started talking about solar power in the 1970s, when he was California's governor for the first time. He was lampooned for it, but the vision gradually became attractive in a state that is naturally sunny and, especially along the coastline, cares about the environment. So in 2006, under a Republican governor, Arnold Schwarzenegger, California set a goal to reduce its greenhouse-gas emissions to 1990 levels by 2020. This year Mr Brown, governor once again, signed the last bits of that goal into law. And this month the state's air-quality regulators unanimously voted to adopt its most controversial but crucial component: a cap-and-trade system. California is staying its course. Besides cap-and-trade, its climate-change law calls for lower exhaust-pipe emissions from vehicles and cleaner appliances, and requires the state's utilities to use renewable energy for one-third of the state's electricity by 2020. In the Californian mainstream the controversy is not whether to do this, but how. The progress of the other main kind of solar technology, photovoltaic (PV) solar cells, looks stronger. The price of PV panels has dropped in recent years, and there are plans to simplify the paperwork for Californians who want to put them on their own roofs, whence the electricity can be fed into the grid where it is needed. "Solar trees" are beginning to shade parking lots, their panels beautifully tilting to face the sun as it moves. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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