{"id":65430,"date":"2024-11-03T00:35:37","date_gmt":"2024-11-02T23:35:37","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=65430"},"modified":"2024-11-02T15:10:41","modified_gmt":"2024-11-02T14:10:41","slug":"zeleny-vodik-dalsi-extremne-drahe-dobrodruzstvi-klimaticke-sekty","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2024\/11\/03\/zeleny-vodik-dalsi-extremne-drahe-dobrodruzstvi-klimaticke-sekty\/","title":{"rendered":"\u201eZelen\u00fd vod\u00edk\u201c \u2013 dal\u0161\u00ed extr\u00e9mn\u011b drah\u00e9 dobrodru\u017estv\u00ed klimatick\u00e9 sekty"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><strong><span>Politici cht\u011bj\u00ed zemn\u00ed plyn nahradit takzvan\u00fdm \u201ezelen\u00fdm vod\u00edkem\u201c. M\u00e1 to ale h\u00e1\u010dek \u2013 a t\u00edm je cena. V\u00fdroba a zkapal\u0148ov\u00e1n\u00ed plynu je extr\u00e9mn\u011b energeticky n\u00e1ro\u010dn\u00e9 a z hlediska energetick\u00e9 technologie jde vlastn\u011b o ztr\u00e1tov\u00fd byznys.<\/span><\/strong><\/p>\n<p><span>Pokud se p\u0159evl\u00e1daj\u00edc\u00ed politika prosad\u00ed, zemn\u00ed plyn jako d\u016fle\u017eit\u00fd zdroj energie v budoucnu nahrad\u00ed tzv. \u201ezelen\u00fd vod\u00edk\u201c. To by samo o sob\u011b byl velmi zaj\u00edmav\u00fd n\u00e1pad. M\u00e1 to v\u0161ak tak\u00e9 velmi velk\u00fd h\u00e1\u010dek. Samotn\u00e1 v\u00fdroba vod\u00edku je ji\u017e energeticky n\u00e1ro\u010dn\u00e1 a zkapal\u0148ov\u00e1n\u00ed ji je\u0161t\u011b prodra\u017euje. To znamen\u00e1, \u017ee v\u00fdroba m\u00e1 smysl pouze v p\u0159\u00edpad\u011b velk\u00e9ho p\u0159ebytku extr\u00e9mn\u011b levn\u00e9 energie, kterou nelze jinak skladovat.<\/span><\/p>\n<p><span>K v\u00fdrob\u011b 1 kg vod\u00edku elektrol\u00fdzou je obvykle zapot\u0159eb\u00ed p\u0159ibli\u017en\u011b 50 kWh energie, proto\u017ee elektrol\u00fdza je pro v\u00fdrobu samotn\u00e9ho vod\u00edku velmi energeticky n\u00e1ro\u010dn\u00e1. Jeden litr kapaln\u00e9ho vod\u00edku v\u00e1\u017e\u00ed asi 0,071 kg. To znamen\u00e1, \u017ee k v\u00fdrob\u011b 0,071 kg vod\u00edku je pot\u0159eba p\u0159ibli\u017en\u011b 3,55 kWh. Zkapal\u0148ov\u00e1n\u00ed vod\u00edku je dal\u0161\u00ed energeticky n\u00e1ro\u010dn\u00fd proces a vy\u017eaduje kolem 10-15 kWh na kg vod\u00edku. Pro 0,071 kg (tedy jeden litr) to je 0,71 a\u017e 1,065 kWh. To znamen\u00e1, \u017ee na v\u00fdrobu jednoho litru kapaln\u00e9ho vod\u00edku mus\u00ed b\u00fdt nakonec spot\u0159ebov\u00e1no 4,26 a\u017e 4,615 kWh.<\/span><\/p>\n<p><span>Ale kolik energie obsahuje jeden litr kapaln\u00e9ho vod\u00edku, kter\u00fd se pou\u017e\u00edv\u00e1 k v\u00fdrob\u011b elekt\u0159iny v palivov\u00e9m \u010dl\u00e1nku? V plynov\u00e9 elektr\u00e1rn\u011b, kter\u00e1 m\u00e1 \u00fa\u010dinnost pouze 30 a\u017e 40 procent, lze z jednoho litru vod\u00edku vyrobit p\u0159ibli\u017en\u011b 0,8 a\u017e 0,9 kWh elekt\u0159iny. Pokud pou\u017eijete palivov\u00fd \u010dl\u00e1nek, kter\u00fd m\u00e1 \u00fa\u010dinnost kolem 50-60 procent, je to kolem 1,3 kWh. Proto\u017ee jeden litr kapaln\u00e9ho vod\u00edku dok\u00e1\u017ee uvolnit energii 2,36 kWh (33,3 kWh na kilogram) p\u0159i \u00fa\u010dinnosti 100 procent.<\/span><\/p>\n<p><span>Jak je vid\u011bt, v\u00fdroba (zelen\u00e9ho) vod\u00edku m\u00e1 smysl pouze v p\u0159\u00edpad\u011b, \u017ee je dostatek p\u0159ebyte\u010dn\u00e9 energie, kterou nelze ulo\u017eit jinde. To znamen\u00e1, kdy\u017e maj\u00ed nap\u0159\u00edklad v\u011btrn\u00e9 a sol\u00e1rn\u00ed elektr\u00e1rny nadprodukci. Na druhou stranu, vod\u00edk m\u016f\u017eete vyr\u00e1b\u011bt pouze v z\u00e1vislosti na po\u010das\u00ed a denn\u00ed dob\u011b a nenechat proces nep\u0159etr\u017eit\u011b b\u011b\u017eet. To ned\u00e1v\u00e1 ani obchodn\u00ed smysl, proto\u017ee by se pak cel\u00fd syst\u00e9m musel neust\u00e1le spou\u0161t\u011bt a znovu vyp\u00ednat. Z\u00e1le\u017e\u00ed na tom, zda je dostatek p\u0159ebyte\u010dn\u00e9 (a p\u0159edev\u0161\u00edm velmi levn\u00e9) elekt\u0159iny \u010di nikoliv.<\/span><\/p>\n<p><span>Cel\u00e9 to zlevn\u00ed pouze tehdy, kdy\u017e se poda\u0159\u00ed obej\u00edt proces zkapal\u0148ov\u00e1n\u00ed a vod\u00edk ulo\u017eit do lo\u017eisek zemn\u00edho plynu. Nab\u00edz\u00ed se ale ot\u00e1zka, zda se tam vod\u00edk, kter\u00fd je v\u00fdrazn\u011b t\u011bkav\u011bj\u0161\u00ed ne\u017e zemn\u00ed plyn, d\u00e1 skladovat a distribuovat potrub\u00edm bez v\u011bt\u0161\u00edch ztr\u00e1t. Ale i v tomto p\u0159\u00edpad\u011b lze jen st\u011b\u017e\u00ed mluvit o skute\u010dn\u00e9 energetick\u00e9 \u00fa\u010dinnosti cel\u00e9ho procesu.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-1185\" src=\"http:\/\/www.infokuryr.cz\/n\/wp-content\/uploads\/2021\/04\/kuryr-podpis.png\" alt=\"\" width=\"84\" height=\"24\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Politici cht\u011bj\u00ed zemn\u00ed plyn nahradit takzvan\u00fdm \u201ezelen\u00fdm vod\u00edkem\u201c. M\u00e1 to ale h\u00e1\u010dek \u2013 a t\u00edm&#8230;<\/p>\n","protected":false},"author":2,"featured_media":65431,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[873,4805,4793],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/65430"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=65430"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/65430\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/65431"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=65430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=65430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=65430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}