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發表人 nicenter 於 2018/8/17 9:52:06 (3 人讀取)

Steady growth in nuclear generation continues


Global nuclear power generation in 2017 increased for the fifth consecutive year, reaching 2506 TWh, according to a new World Nuclear Association report. The Association says the industry is on target to meet the near-term goals of its Harmony programme.




Global nuclear generation and capacity under construction (Image: World Nuclear Association)

In the World Nuclear Performance Report 2018, the Association details power generation and construction achievements for the previous year. In addition, the report features five case studies covering topics including how one of the oldest operating reactors achieved a 100% availability factor, the restart of two reactors in Japan and the construction and operation of three new reactor models in China, Russia and South Korea.


At the end of 2017 the global nuclear capacity of the 448 operable reactors stood at 392 GWe, up 2 GWe compared with the end of 2016. Four new reactors were connected to the grid, with a combined capacity of 3373 MWe. The total number of reactors under construction fell by two to 59 over the course of 2017. Five reactors - two of which had not generated electricity for some years - were shut down, with a combined capacity of 3025 MWe.


The median construction time in 2017 was 58 months, down from 74 months in 2016, and equalling the lowest five-year median construction time achieved in 2001-2005.



Nuclear-electricity-production-1970-2017-for-article-(WNA).jpg

The capacity factor for the global fleet stood at 81% in 2017, maintaining the high availability of around 80% that has been maintained since 2000, up from the 60% average capacity factor at the start of the 1980s. "In general, a high capacity factor is a reflection of good operation performance," World Nuclear Association said. "However, there is an increasing trend in some countries for nuclear reactors to operate in a load-following mode, resulting in lower annual capacity factors."


The Association noted there is no significant age-related trend in nuclear reactor performance. The mean capacity factor for reactors over the last five years shows no significant variation regardless of their age, it said.


Agneta Rising, Director General of World Nuclear Association said, "There is no sustainable energy future without nuclear energy. We will need all low-carbon energy sources to work together. Nuclear capacity must expand to achieve the industry's Harmony goal to enable nuclear energy to supply 25% of the world's electricity demand by 2050."


The Harmony goal will require a tripling of nuclear generation from its present level. Some 1000 GWe of new nuclear generating capacity will need to be constructed by then to achieve that goal.


"Much needs to be done to deliver the Harmony goal, but good progress has been made, both in terms of global reactor performance and new nuclear capacity additions," Rising said. "After 2015 and 2016 each saw nearly 10 GWe of new nuclear capacity start up, a more modest 3.3 GWe was connected to the grid in 2017. However, in 2018 and 2019 more than 26 GWe of new nuclear capacity is scheduled to come online, meeting the overall target for this first five-year period."


She added, "The pace of capacity additions required to meet the Harmony goal needs to accelerate in the next decade, eventually reaching an average of 33 GWe of new nuclear capacity added each year. Action is needed to enable this acceleration to happen."


World Nuclear Association has identified three areas for action to achieve this: establishing a level playing field in electricity markets, building harmonised regulatory processes, and an effective safety paradigm.


Researched and written by World Nuclear News



source: http://www.world-nuclear-news.org/Articles/Steady-growth-in-nuclear-generation-continues


更多內容 國際核能現況

發表人 nicenter 於 2018/8/13 9:28:20 (10 人讀取)

全國首創「雙綠能電廠」 台電首座水上光電站大甲溪啟用


台電第一座水上光電站啟用,大甲溪首創「雙綠能電廠」。大甲溪水力電廠是全國第一大水力電廠,去年發電達23億度、占全國水力發電比例超過40%,台電現更利用馬鞍機組後池既有空間及良好日照,設置首座水上太陽光電站,今(10)日舉辦啟用典禮。台電表示,馬鞍後池水上光電設置容量300瓩,3月已併聯發電,預計一年可發38萬度電,等同超過1千戶家庭月用電量。


台電今日下午於大甲溪電廠馬鞍後池舉辦台電首座水上光電啟用典禮。台電指出,大甲溪電廠利用大甲溪水資源,上下游設有德基、青山、谷關、天輪、馬鞍、社寮及后里等7座電廠及機組,設廠至今累積發電量已超過550億度,也同時提供大台中地區民生、工業與農業灌溉等用水。這次台電首座水上光電站設在馬鞍發電機組的後池,平時是調節發電與下游用水的蓄水池,考量其日照充足、周遭無遮蔽建築,且水深較淺而平坦、水位穩定,方便維護管理,因而首度結合水力與水上光電,打造全國第一座「雙綠能電廠」,每年可減少123萬噸碳排放量。


台電說明,水上光電又叫浮動型太陽光電,透過水面浮台結合太陽光電模組,除可善用大面積水域良好日照來發電,因設在水上有助降溫,也可提高發電效率,另對水力電廠而言,設置水上光電可減少水份蒸散、抑制藻類增生、減緩優養化影響水質,目前國際間日本、韓國、英國、比利時等國皆設有水上光電站,累積裝置容量約200MW(百萬瓦,等於20萬瓩),等同約有超過600座如馬鞍後池大小的水上光電站。


台電表示,馬鞍後池總面積約9萬平方公尺,這次水上光電站設置面積約3000平方公尺,面積比約3.3%,建置成本約2400萬元,自去年8月動工,共設置1040片高效能太陽光電發電模組、裝置容量300瓩(0.3MW),已於3月進入併聯發電測試階段,截至7月底已發出14萬5807度電,一年約可發出38萬度電,等同約1152戶家庭用戶的月用電量。


台電指出,水上光電工程使用耐酸鹼、抗溶出等無毒材質,對水質無影響,電廠除持續每年4次水質檢驗,馬鞍後池水上光電營運期間,台灣自來水公司也將協助監測、水源也會再經過給水廠的檢測處理才做後續利用,確保水質無虞。另水上光電板角度約設定在8-15度,可確保光線不會折射到岸邊,且光電板的玻璃表面也經過絨面處理,可再減少反射量,並同步增加光線入射量、提升發電效率。


台電說明,大甲溪電廠除首創「雙綠能電廠」,也將再利用既有馬鞍後池與天輪壩的放流量及水位落差,設置小水力發電,裝置容量合計1.7MW,預計明(2019)年動工、2021年商轉,屆時一年可再增加850萬度綠色再生能源電力。


 



台電發言人:徐造華專業總工程師


聯絡電話:(02)2366-6271/0937-730-598


Email:u787200@taipower.com.tw


業務聯絡人:再生能源處陳一成處長


聯絡電話:(02)2367-7050/0911-223-159


Email:u845673@taipower.com.tw



source: http://www.taipower.com.tw/tc/news_info.aspx?id=1667&chk=4abcd4d5-653e-4e2c-aeb2-2471817b055a&mid=17¶m=pn%3d1%26mid%3d17%26key%3d


更多內容 核能新聞

發表人 nicenter 於 2017/6/14 9:29:38 (186 人讀取)

原能會收到台電公司依「核子反應器設施停止運轉後再起動管制辦法」所提出之核二廠1號機起動後併聯申請,經審查相關申請文件,並整合起動過程間各項現場視察結果,確認機組運作狀態符合併聯要求,於今日19時25分同意核二廠1號機可併聯發電。

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更多內容 核能簡訊

發表人 nicenter 於 2016/12/12 16:01:22 (802 人讀取)

PDF檔內共有6篇有關核四的文章,是由多位旅美的核能專家共同撰寫,希望提供國內民眾更多客觀、中立的核能專業資訊。


更多內容 核四公投

發表人 nicenter 於 2007/3/23 9:54:35 (2462 人讀取)

『輻射意外緊急醫療處理國際研討會』

主辦單位:三軍總醫院

日期:2007年5月25-26日

聯絡人:
三軍總醫院 核子醫學部
林立凡、徐詩婕
電話:02-87923311-16704、16712


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