ICS: nejde len o to, aby sa vyrabal dostatocne ciste ale aj energeticky usporne, leda ze by sme nasli nejaku novu metodu ako ho ziskavat okrem elektrolyzy

"A completely efficient electrolysis system would require 39 kWh of electricity to produce 1 kg of hydrogen. However, the devices commonly found in operation for this process are less efficient. A typical operational figure is about 48 kWh per kg of hydrogen."

Mirai ma nadrz na 5,6kg vodika takze na "plnu nadrz" sa vybacha no nech 40*5,6 = 224 kWh elektriny ak by bola super ucinna a mas z toho odhadovany papierovy dojazd 650kg

nejake EV so spotrebou nech 20kWh/100 by na taky dojazd teda potrebovalo 130 kWh baterku co je skoro polovicna ucinnost

cisla su zamerne ohnute v prospech vodiku, aby si niekto nemyslel, ze chcem vodik matematickou akrobaciou zhadzovat, zamerne vynechavam aj udrzbu infrastruktury, materialy v baterke sa menej namahaju ako nadrz tlakovana na 700 bar a to nielen v autach ale aj na cerpacich staniciach

DZODZO: Troleje na dálnici mi náhodou přijdou jako docela dobrý řešení. Na dálnici coby trolejbus, z dálnice už dojede na baterky... easy.

Electric Vehicle Sales Headed For Five And A Half Million In 2021 As Automakers Target 40 Million Per Year By 2030 | BloombergNEF
https://about.bnef.com/blog/electric-vehicle-sales-headed-for-five-and-a-half-million-in-2021-as-automakers-target-40-million-per-year-by-2030/

The total global fleet of passenger electric and fuel cell vehicles now totals nearly 13 million, of which 8.5 million are true zero-emission vehicles (ZEVs), either battery electric or fuel cell (still, fuel cell vehicles account for a fraction of that total). (bez PHEV)

In the first half of 2021, sales of passenger electric vehicles (including battery electric, plug-in hybrid and fuel cell vehicles) were 140% higher than the same period in 2019, reaching 7% of global passenger vehicle sales. This compares with just 2.6% in 2019 - tohle je včetně PHEV

i nádrž na vodík se opotřebovává a musí se měnit jednou za X let (kde X je maximálně 15, spíš 10)

mna v tom clanku o toyote mirai zarazilo, ze ten fuel cell potrebuje aj vysoko kvalitny vzduch, preto musi ten vstupny vzduch filtrovat, cim sice cisti vzduch ale za cenu opotrebovania filtrov, ktore sa musia bohvie ako casto obmienat, aby to fungovalo spravne, predpokladam, ze tie filtry sa nerecykluju ale skladkuju

Problemu s vodikem je mnoho. Jeden z nich je ten ze v tech vodikovych clancich lze vyuzit opravdu jen velmi cisty vodik. To ho znova prodrazuje a znova utahuej zavislost na par velkych hracich.

Tlacej ho pres think-thanky a lobbying fosilni korporace, protoze ho dneska jsou schopni generovat (z methanu).

PEPAZZ: teda lokomotiva na vodik mi pride ako este vacsi nezmysel nez kamiony s tykadlami a troleje na dalnici

ked si vezmeme energeticku (ne)ucinnost celeho vodikoveho cyklu (hlavne sustainable vyroba z nefosilnych paliv), tak to uz by bola asi lepsia lokomotiva na baterky co si za sebou bude vliect 1 vagon bateriek ako si kedysi vozili za sebou vozik s uhlim :)

jeste na podobné téma
Hydrogen Fuel Cell Locomotives Ready to Take Over Freight Rail Systems - autoevolution
https://www.autoevolution.com/news/hydrogen-fuel-cell-locomotives-ready-to-take-over-freight-rail-systems-173272.html