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The Renewable Energy Certificate System (RECS) is a voluntary system for international trade in renewable energy certificates that was created by RECS International to stimulate international development of renewable energy. It advocates the use of a standard energy certificate to provide evidence of the production of a quantity of renewable energy, and provides a methodology which enables renewable energy trade, enabling the creation of a market for renewable energy and so promoting the development of new renewable energy capacity in Europe. A RECS energy certificate is issued for every 1 megawatt-hour (MWh) of renewable energy produced by an electricity generation facility that has been registered with the relevant national RECS issuing body. These certificates can be transferred between market parties in different countries, and are used to provide evidence of the consumption of renewable energy – at which point they are made non-transferable, in order to ensure that the "renewable benefit" is not double-sold. While RECS guarantees the source of the energy and prevents double-counting, it is not a label: these also guarantee other matters relating to the supplied electricity, such as the originating technology, the age of the plant and the source of the energy. Labels must also ensure that sales of labelled electricity either do not change the blend of sources of electricity that is supplied unlabelled, or that the buyers of such electricity are informed accordingly. The market for RECS certificates is administered by the Association of Issuing Bodies (AIB) according to its European Energy Certificate System (EECS), in the same way as the obligatory guarantees of origin required by the various European Union Directives that are gradually replacing voluntary RECS certificates in Europe. == Limits of RECS == Several non-governmental environmental organizations like Greenpeace and the World Wide Fund for Nature claim that in practice today there is no ecological benefit ensured by this certification method alone.〔From Green Energy to Waste Subsidy: A Greenpeace position paper on green electricity http://www.greenpeace.org/belgium/Global/belgium/report/2000/12/from-green-energy-to-waste-sub-2.pdf〕 Until the demand of this certification method does not exceed the supply by regenerative power plants, that has existed anyway for decades, it is criticized as being a pure mind-game: In practice the amount of regenerative power that is assigned to certificate buyers is just "assigned away" from the other power consumers; in total, nothing has changed. Indeed, some electricity traders misuse RECS that they bought from old regenerative power plants that existed anyways for years to imply misleadingly that buying their "RECS certified regenerative electricity" makes a change for the environment. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Renewable Energy Certificate System」の詳細全文を読む スポンサード リンク
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