{"id":4294,"date":"2022-12-16T22:29:44","date_gmt":"2022-12-16T21:29:44","guid":{"rendered":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/?p=4294"},"modified":"2024-02-15T20:05:49","modified_gmt":"2024-02-15T19:05:49","slug":"uvaha-nad-cenami-energii","status":"publish","type":"post","link":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2022\/12\/uvaha-nad-cenami-energii\/","title":{"rendered":"\u00davaha nad cenami energi\u00ed"},"content":{"rendered":"\n<p>V na\u0161em rodinn\u00e9m dom\u011b jsme pou\u017e\u00edvali k vyt\u00e1p\u011bn\u00ed prim\u00e1rn\u011b elektrick\u00fd kotel <em>Protherm Rejnok 15kW<\/em>, kter\u00fd oh\u0159\u00edval vodu pro n\u00e1st\u011bnn\u00e9 radi\u00e1tory v m\u00edstnostech. V\u00fdkon kotle je dosta\u010duj\u00edc\u00ed pro nah\u0159\u00e1t\u00ed syst\u00e9mu z 20\u00b0C na 70\u00b0C za dobu cca 30min. Topn\u00fd okruh (v\u010detn\u011b radi\u00e1tor\u016f) obsahuje celkov\u011b cca 120l vody, tepeln\u00e1 setrva\u010dnost tedy nen\u00ed p\u0159\u00edli\u0161 vysok\u00e1. Tak\u017ee pokud se nah\u0159\u00edv\u00e1n\u00ed pomoc\u00ed elektrick\u00fdch spir\u00e1l vypne, teplota topn\u00e9 vody relativn\u011b rychle kles\u00e1 a cel\u00fd syst\u00e9m vychladne. Rovn\u011b\u017e spot\u0159eba el. energie nen\u00ed zanedbateln\u00e1.<\/p>\n\n\n\n<p>Tepeln\u00e1 zte\u00e1ta na\u0161eho domu, energetick\u00e1 t\u0159\u00edda C, je \u02db 12kW. Umodern\u00edch dom\u016f, trojskla, dobr\u00e1 izolace st\u011bn to m\u016f\u017ee b\u00fdt 2-3kW. <\/p>\n\n\n\n<p>Pokud chceme  nap\u0159. v ob\u00fdvac\u00ed m\u00edstnosti dos\u00e1hnout teploty ~22\u00b0C, v lo\u017enici a d\u011btsk\u00e9m pokoji ~19\u00b0C a zv\u00e1\u017e\u00edme-li venkovn\u00ed teplotu ~0\u00b0C, je pot\u0159eba ka\u017ed\u00fd den sp\u00e1lit cca 70~100kWh el. energie. V t\u00e9to spot\u0159eb\u011b je zapo\u010d\u00edt\u00e1n i p\u0159\u00edkon bojleru na teplou vodu o objemu 160l (denn\u011b spot\u0159ebujeme ~100l hork\u00e9 vody vyh\u0159\u00e1t\u00e9 na 65\u00b0C).<\/p>\n\n\n\n<p>V cen\u00e1ch z <strong>roku 2021, kdy byla 1MWh n\u00edzk\u00e9ho \/ vysok\u00e9ho tarifu (D57d na dobu neur\u010ditou) za 1880,-K\u010d<\/strong>, vych\u00e1zela (p\u0159i ro\u010dn\u00ed spot\u0159eb\u011b ~9MWh) <strong>1kWh na 4,65,-k\u010d.<\/strong> Kdo n\u011bkdy pochopil v\u00fdpo\u010det ceny \u010cEZ\/EON\/PRE v\u00ed, o \u010dem mluv\u00edm. V\u017edy se k cen\u011b p\u0159ipo\u010d\u00edt\u00e1vaj\u00ed polo\u017eky jako je da\u0148, podpora obnoviteln\u00fdch zdroj\u016f energie, syst\u00e9mov\u00e9 slu\u017eby, platba podle jisti\u010de, platba podle spot\u0159eby, m\u011bs\u00ed\u010dn\u00ed platba atd., atd. Tak\u017ee aby se \u00fa\u0159edn\u00ed (a soukrom\u00fd) \u0161iml dostate\u010dn\u011b na\u017eral, nabyde po\u010d\u00e1te\u010dn\u00ed cena silov\u00e9 elekt\u0159iny 2,5x. <\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1283\" height=\"1584\" data-id=\"4281\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vypocet_cen_CEZ.png\" alt=\"\" class=\"wp-image-4281\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vypocet_cen_CEZ.png 1283w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vypocet_cen_CEZ-243x300.png 243w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vypocet_cen_CEZ-768x948.png 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vypocet_cen_CEZ-1244x1536.png 1244w\" sizes=\"auto, (max-width: 1283px) 100vw, 1283px\" \/><figcaption class=\"wp-element-caption\">V\u00fdpo\u0161et ceny \u010cEZ<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p>Jak jsem ji\u017e zm\u00ednil, celkov\u00e1 cena se razantn\u011b odv\u00edj\u00ed od celkov\u00e9ho spot\u0159ebovan\u00e9ho mno\u017estv\u00ed energie, tak\u017ee pokud bych p\u0159i stejn\u00e9m tarifu (D57d) spot\u0159eboval pouze <strong>1MWh za rok<\/strong>, celkov\u00e1 cena p\u0159epo\u010dten\u00e1 na <strong>1kWh bude 8,52,-k\u010d<\/strong>.<\/p>\n\n\n\n<p>Tak\u017ee, pokud si vezmeme zastropovan\u00e9 ceny platn\u00e9 od 1.1.2023, dostaneme cenu <strong>samostatn\u00e9<\/strong> silov\u00e9 slo\u017eky 6050,-k\u010d\/MWh. Pokud p\u0159ipo\u010dtu v\u010dechny p\u0159ir\u00e1\u017eky a dan\u011b, odpu\u0161t\u011bn\u00ed podpory obnoviteln\u00fdch zdroj\u016f energie apod., dostaneme se, op\u011bt, p\u0159i ro\u010dn\u00ed spot\u0159eb\u011b 9MWh za rok na cenu <strong>7,16,-k\u010d\/kWh<\/strong> (P\u0159i spot\u0159eb\u011b 1,MWh pak 12,96k\u010d\/kWh). Co\u017e je sice jist\u00e1 \u00faspora, ale nezapom\u00ednejme na pom\u00edjiv\u00fd \u010das po kter\u00fd n\u00e1m budou poplatky odpu\u0161t\u011bny. Pokud tedy ceny vypo\u010d\u00edt\u00e1m podle klasick\u00e9ho sch\u00e9matu, se silovou slo\u017ekou za 6050,-k\u010d\/MWh se dostaneme p\u0159i ro\u010dn\u00ed spot\u0159eb\u011b 9MWh na kr\u00e1sn\u00fdch 8,82,-k\u010d<\/p>\n\n\n\n<p>Srovn\u00e1n\u00ed cen vypad\u00e1 n\u00e1sledovn\u011b:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1313\" height=\"301\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Ceny_energie.png\" alt=\"\" class=\"wp-image-4255\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Ceny_energie.png 1313w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Ceny_energie-300x69.png 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Ceny_energie-768x176.png 768w\" sizes=\"auto, (max-width: 1313px) 100vw, 1313px\" \/><\/figure>\n\n\n\n<p>Bereme-li v \u00favahu ceny pro rok 2023 s odpu\u0161t\u011bn\u00fdmi poplatky, \u010din\u00ed sleva pro ro\u010dn\u00ed spot\u0159ebu <strong>9MWh 23,2%, pro spot\u0159ebu 1MWh pak 2%<\/strong>.<\/p>\n\n\n\n<p>Pokud srovn\u00e1me cenu 1kWh el. energie a ekvivalent 1kWh tepla, kter\u00e9 uvoln\u00edme p\u0159i spalov\u00e1n\u00ed d\u0159eva v kotli s vysokou \u00fa\u010dinnost\u00ed, z\u00edsk\u00e1me tuto tabulku (ceny platn\u00e9 k 15.12.2022):<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1921\" height=\"385\" src=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vyhrevnost_topiv.png\" alt=\"\" class=\"wp-image-4357\" srcset=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vyhrevnost_topiv.png 1921w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vyhrevnost_topiv-300x60.png 300w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vyhrevnost_topiv-768x154.png 768w, https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-content\/uploads\/2022\/12\/Vyhrevnost_topiv-1536x308.png 1536w\" sizes=\"auto, (max-width: 1921px) 100vw, 1921px\" \/><\/figure>\n\n\n\n<p>Sp\u00e1len\u00edm 1kg such\u00e9ho (vlhkost&lt;20%) tvrd\u00e9ho d\u0159eva z\u00edsk\u00e1me cca 14MJ energie, to odpov\u00edd\u00e1 cca 3,89kWh.<\/p>\n\n\n\n<p>*Toto plat\u00ed p\u0159i cen\u011b 2200,-k\u010d za 1PRMS \u010derstv\u00e9ho d\u0159eva (350kg), kter\u00e9 mus\u00ed vyschnout pod 20% vlhkost.<\/p>\n\n\n\n<p>Vych\u00e1z\u00edm z t\u011bchto p\u0159edpoklad\u016f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pr\u016fm\u011brn\u00e1 d\u00e9lka topn\u00e9 sez\u00f3ny 180dn\u00ed<\/li>\n\n\n\n<li>Za topnou sezonu sp\u00e1l\u00edm 11PRMS (metr sypan\u00e9ho d\u0159eva, co\u017e odpov\u00edd\u00e1 cca 7PRMR &#8211; rovnan\u00e9ho d\u0159eva)<\/li>\n\n\n\n<li>11PRMS tvrd\u00e9ho d\u0159eva m\u011b p\u0159ijde na 21600,-K\u010d<\/li>\n\n\n\n<li>Sp\u00e1len\u00edm 11PRMS (3850kg vyschl\u00e9ho d\u0159eva) z\u00edsk\u00e1m  ~15MWh energie<\/li>\n\n\n\n<li>P\u0159i 87% \u00fa\u010dinnosti spalov\u00e1n\u00ed ve Verneru IK 13\/10.2 jsem schopen takto p\u0159ev\u00e9st do vody  ~13MWh energie<\/li>\n<\/ul>\n\n\n\n<p>Kotel samoz\u0159ejm\u011b p\u0159ed\u00e1v\u00e1 teplo i s\u00e1l\u00e1n\u00edm do m\u00edstnosti kde je um\u00edst\u011bn, proto po\u010d\u00edt\u00e1m s celkov\u00fdm mno\u017estv\u00edm <strong>~14MWh<\/strong> energie.<\/p>\n\n\n\n<p><strong>Pokud tedy budu topit d\u0159evem, jeho\u017e 1kg v\u00e1hy m\u011b vyjde na cca 6,-K\u010d, p\u0159ijde m\u011b ekvivalent 1kWh tepla uvoln\u011bn\u00e9 p\u0159i spalov\u00e1n\u00ed d\u0159eva na ~1,6-K\u010d!<\/strong> <strong>Pokud bych zm\u00edn\u011bn\u00fdch 14MWh \u010derpal z elektrick\u00e9 s\u00edt\u011b, p\u0159i\u0161ly by m\u011b na 84000,-K\u010d<\/strong> <strong>(ceny 2022).<\/strong><\/p>\n\n\n\n<p><strong>Cena topen\u00ed d\u0159evem je tedy ve v\u00fdsledku:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>3x ni\u017e\u0161\u00ed oproti roku 2021<\/strong><\/li>\n\n\n\n<li><strong>3,75x oproti roku 2022<\/strong><\/li>\n\n\n\n<li><strong>4,5x ni\u017e\u0161\u00ed oproti roku 2023<\/strong><\/li>\n<\/ul>\n\n\n\n<p>V\u00fdb\u011brem vhodn\u00e9ho kotle a jeho instalac\u00ed do st\u00e1vaj\u00edc\u00edho syst\u00e9mu se budu zab\u00fdvat v n\u00e1sleduj\u00edc\u00edm \u010dl\u00e1nku.<\/p>\n\n\n\n<p><a href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2022\/12\/prechod-na-topeni-drevem-verner-13-10-2\/\">P\u0159echod na topen\u00ed d\u0159evem &#8211; VERNER 13\/10.2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>V na\u0161em rodinn\u00e9m dom\u011b jsme pou\u017e\u00edvali k vyt\u00e1p\u011bn\u00ed prim\u00e1rn\u011b elektrick\u00fd kotel Protherm Rejnok 15kW, kter\u00fd oh\u0159\u00edval vodu pro n\u00e1st\u011bnn\u00e9 radi\u00e1tory v m\u00edstnostech. V\u00fdkon kotle je dosta\u010duj\u00edc\u00ed pro nah\u0159\u00e1t\u00ed syst\u00e9mu z 20\u00b0C na 70\u00b0C za dobu cca 30min. Topn\u00fd okruh (v\u010detn\u011b <a class=\"more-link\" href=\"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/2022\/12\/uvaha-nad-cenami-energii\/\">Pokra\u010duj ve \u010dten\u00ed \u2192<\/a><\/p>\n","protected":false},"author":1,"featured_media":4255,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1244],"tags":[1258,1256,1246],"class_list":["post-4294","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dum","tag-cena-elektriny","tag-d57d","tag-topeni-drevem"],"_links":{"self":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/4294","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/comments?post=4294"}],"version-history":[{"count":10,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/4294\/revisions"}],"predecessor-version":[{"id":4463,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/posts\/4294\/revisions\/4463"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/media\/4255"}],"wp:attachment":[{"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/media?parent=4294"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/categories?post=4294"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ok2haz.ok2kld.cz\/ok2haz\/wp-json\/wp\/v2\/tags?post=4294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}