能源論壇/蔡總統:提高再生能源有助打進 - 股票
By Elizabeth
at 2020-11-17T14:37
at 2020-11-17T14:37
Table of Contents
昨天看到一篇文章:
Why Aren't Falling Renewables Costs Cutting European Energy Market Prices?
https://tinyurl.com/y3e3agk6
這篇文章主要在探討為什麼隨著再生能源號稱成本越來越低
但最早開始推再生能源的歐洲電價並沒有跟著下降
歐洲統計由2015Q4到2018Q4
再生能源佔比由28.8%提升到32.1%,同時批發電價漲了0.02歐元
這跟很多綠能支持者口中的過剩電力造成電價大幅度降低的說法完全不一樣
有幾個原因
1. 因為減碳需要達標,所以大量降低燃煤提升燃氣,整體成本大幅度上升
2. 當初起步時的高額躉購政策補貼的建設依然存在,其攤提成本很高
3. 再生能源的不穩定性需要燃氣隨時備援,因此決定電價高低的其實是滿足需求量的
燃氣發電,跟再生能源成本關係並不大
4. 再生能源本身其實也只佔1/3,對電價影響不是很大
接著作者提出了再生能源是否能夠在未來拉低歐洲電價呢?
1. 再生能源生產過剩時造成的負電價虧損勢必要攤提到平時的電力上
2. 在歐洲區域整體再生能源容量因數為1/3上下
換句話說,裝置容量100kw的設備實際上平均產出只有33kw左右
所以你的需求有100kw,你要達到50%綠能的目標,你可能需要建立150kw的風車
但你同時還要建立100kw的燃氣設備來備援,因為他很有可能全部停擺
然而,這個150kw的設備全力滿載時,卻又對輸電系統造成正常1.5倍的壓力
因此整體的設備成本是很高的
3. 若是補貼正式宣告退場的時候,這些再生能源是否依然能夠吸引能源公司投入呢?
畢竟能源公司的目標是發電,客戶需求是穩定,偏偏再生能源完全無法滿足
4. 若是要解決這塊需要策略性的配合儲能設施
結論:
這個是歐陸當下的現象,別忘了整體歐陸的面積是橫跨好幾個經緯度的區域
這樣幅員遼闊的條件正好可以運用氣候差異性來彼此補足
相反的,台灣是屬於截然不同的一個狀態下
我們的電網只能依靠自己,我們甚至沒辦法用更高的電價去攤提過剩浪費的再生能源
而我們最大的敵國,中國,在補貼再生能源以及運用先天和市場優勢是很驚人的成果
在電力自由化外加再生能源佔比強迫性的提升中
我們可能只能面對逐漸提升的電價又或是快速破產的台電
--
→ eXXX8X9: 朋友剛花150買外匯c300 被我們笑 01/19 19:45
噓 eXXX8X9: 我開rav2.5要跟你說嗎 現金付清 要道歉的快喔 01/19 22:39
--
Why Aren't Falling Renewables Costs Cutting European Energy Market Prices?
https://tinyurl.com/y3e3agk6
這篇文章主要在探討為什麼隨著再生能源號稱成本越來越低
但最早開始推再生能源的歐洲電價並沒有跟著下降
歐洲統計由2015Q4到2018Q4
再生能源佔比由28.8%提升到32.1%,同時批發電價漲了0.02歐元
這跟很多綠能支持者口中的過剩電力造成電價大幅度降低的說法完全不一樣
有幾個原因
1. 因為減碳需要達標,所以大量降低燃煤提升燃氣,整體成本大幅度上升
2. 當初起步時的高額躉購政策補貼的建設依然存在,其攤提成本很高
3. 再生能源的不穩定性需要燃氣隨時備援,因此決定電價高低的其實是滿足需求量的
燃氣發電,跟再生能源成本關係並不大
4. 再生能源本身其實也只佔1/3,對電價影響不是很大
接著作者提出了再生能源是否能夠在未來拉低歐洲電價呢?
1. 再生能源生產過剩時造成的負電價虧損勢必要攤提到平時的電力上
2. 在歐洲區域整體再生能源容量因數為1/3上下
換句話說,裝置容量100kw的設備實際上平均產出只有33kw左右
所以你的需求有100kw,你要達到50%綠能的目標,你可能需要建立150kw的風車
但你同時還要建立100kw的燃氣設備來備援,因為他很有可能全部停擺
然而,這個150kw的設備全力滿載時,卻又對輸電系統造成正常1.5倍的壓力
因此整體的設備成本是很高的
3. 若是補貼正式宣告退場的時候,這些再生能源是否依然能夠吸引能源公司投入呢?
畢竟能源公司的目標是發電,客戶需求是穩定,偏偏再生能源完全無法滿足
4. 若是要解決這塊需要策略性的配合儲能設施
結論:
這個是歐陸當下的現象,別忘了整體歐陸的面積是橫跨好幾個經緯度的區域
這樣幅員遼闊的條件正好可以運用氣候差異性來彼此補足
相反的,台灣是屬於截然不同的一個狀態下
我們的電網只能依靠自己,我們甚至沒辦法用更高的電價去攤提過剩浪費的再生能源
而我們最大的敵國,中國,在補貼再生能源以及運用先天和市場優勢是很驚人的成果
在電力自由化外加再生能源佔比強迫性的提升中
我們可能只能面對逐漸提升的電價又或是快速破產的台電
--
→ eXXX8X9: 朋友剛花150買外匯c300 被我們笑 01/19 19:45
噓 eXXX8X9: 我開rav2.5要跟你說嗎 現金付清 要道歉的快喔 01/19 22:39
--
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