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    TUHOKlimaticka zmena / Thank you so much for ruining my day


    "Given the sheer enormity of climate change, it’s okay to be depressed, to grieve. But please, don’t stay there too long. Join me in pure, unadulterated, righteous anger."


    "I don’t want your hope. I don’t want you to be hopeful. I want you to panic. I want you to feel the fear I feel every day. And then I want you to act. Once you start to act, the hope is everywhere."

    "Our best scientists tell us insistently that a calamity is unfolding, that the life-support systems of the Earth are being damaged in ways that threaten our survival. Yet in the face of these facts we carry on as usual."

    “We’ve got to stop burning fossil fuels. So many aspects of life depend on fossil fuels, except for music and love and education and happiness. These things, which hardly use fossil fuels, are what we must focus on.”

    A nejde o to, že na to nemáme dostatečné technologie, ty by na řešení použít šly, ale chybí nám vůle a představivost je využít. Zůstáváme při zemi, přemýšlíme až moc rezervovaně. Technologický pokrok to sám o sobě nevyřeší. Problém jsme my, ne technologické nástroje.

    Rostouci hladiny oceanu, zmena atmosferickeho proudeni, zmeny v distribuci srazek a sucha. Zmeny karbonoveho, fosforoveho a dusikoveho cyklu, okyselovani oceanu. Jake jsou bezpecnostni rizika a jake potencialni klady dramatickych zmen fungovani zemskeho systemu?
    Ale take jak funguji masove dezinformacni kampane ropneho prumyslu a boj o verejne mineni na prahu noveho klimatickeho rezimu post-holocenu.
    rozbalit záhlaví
    TADEAS
    TADEAS --- ---
    Europe's Leaked Hydrogen Strategy Is Very Ambitious | OilPrice.com
    https://oilprice.com/...y/Energy-General/Europes-Leaked-Hydrogen-Strategy-Is-Very-Ambitious.amp.html

    in a recent Tracking Energy Integration 2020 report, the IEA calls hydrogen one of several integration technologies that are ‘increasingly crucial’ for a low-carbon energy transition. The report notes that important political momentum had been building through last year, listing ten international initiatives and national plans that appeared during 2019. These include top level G20 discussions and target-setting plans by Korea, Japan, Netherlands, Australia and Canada.

    Clearly the hydrogen movement is at a critical moment when continuing innovation is required. The role of government will remain important as fledgling industries seek to gain scale and find markets. Governments will need to provide direct, targeted support for projects that can achieve technical and market advances. And they will need to help stimulate demand in sectors where good near-term opportunities appear.

    ...

    The shifting emphasis can be seen especially in Northern Europe, where large concentrations of projects are now found. Renewable energy will power electrolysers to produce hydrogen for industries in northern industrial centers. Other projects focus on power and heat for urban districts. Key applications include large-scale electrolysis, carbon capture, utilization and storage (CCUS), and utilization of natural gas networks.

    ...

    In Germany, a power-to-gas project in Emsland in the Ruhr region has been called ‘Hybridge’ for its capacity to couple electric and gas networks. In a partnership of transmission system operator Amprion and gas net operator Open Grid Europe (OGE), electricity from renewable energy will be converted, by means of electrolysis, into hydrogen and methane. The companies will deploy a 100 MW electrolyser, with the resulting hydrogen transported by an OGE hydrogen pipeline and the existing gas pipeline network throughout the Ruhr and beyond. The project is anticipated to start operation in 2023.

    In France, in the Les Hauts de France region around Dunkirk, one of the world’s most ambitious power-to-gas projects will build five 100 MW hydrogen electrolyser production units over five years. The project, a partnership of France’s H2V Industry and Norway’s HydrogenPro, will introduce hydrogen into the natural gas distribution network in order to decarbonize the natural gas used for heating and cooking as well as for transport.

    These ambitious European projects have large-scale electrolysis counterparts in North America. Most notable is a project of the British Columbia-based Renewable Hydrogen Canada (RH2C), which is backed by a private sector utility and investors. The company is planning to build a large electrolysis plant in BC, to produce renewable hydrogen through water electrolysis powered by local hydropower and winds off the Rockies.

    ...

    An enormous pilot project to convert the gas networks to hydrogen in the north of England is being planned now. First announced in 2016, the H21 North of England (H21 NoE) project, is a collaboration of two British gas distributors, Northern Gas Networks and Cadent, and Norway’s Equinor (formerly Statoil). They have produced a hydrogen blueprint that will utilize the existing natural gas distribution infrastructure serving a region of 5 million inhabitants including several large cities for domestic and industrial users, with applications including heat, power and transport.

    The project’s planners view it as a way to achieve the ‘deep decarbonization’ that could not be reached with renewable electric power alone. To do so will require carbon capture and storage (CCS). Equinor’s role is to build a hydrogen production facility utilizing a standard reforming process with natural gas. The captured CO2 will be transported offshore to undersea storage. A specially built hydrogen transmission pipeline will link to the local gas distribution networks. The new transmission pipeline is required because injecting hydrogen into gas transmission pipelines is more difficult (although Italy’s Snam has already demonstrated the feasibility of blending hydrogen up to 10% in gas transmission grids).

    Project implementation is to occur between 2028 and 2034. It is anticipated to achieve deep decarbonization of 14% of the UK's heat demand by 2034. Its large scale and significant impact on carbon emissions will make H21 NoE the world’s first at-scale hydrogen economy. Should it succeed, it will lay a basis for expanding such a system across the entire UK, decarbonizing a large percentage of domestic heat, transport and power by 2050

    TADEAS, TADEAS, TADEAS, TADEAS, TADEAS, TADEAS
    TADEAS
    TADEAS --- ---
    Stranded Assets vs Active Change: Coal vs Hydrogen in Steel Production
    https://www.linkedin.com/pulse/stranded-assets-vs-active-change-coal-hydrogen-steel-production

    there is real potential for hydrogen technology to replace coking coal. The Materials Processing Institute (MPI), which was established 75 years ago as the British Iron and Steel Research Association, estimates that commercialisation of hydrogen steelmaking technology will be possible by 2030.

    The Swedish steel company SSAB aims to replace coking coal entirely with hydrogen and bring fossil free steel to the market by 2026. The Austrian steel producer Voestalpine has invested in the world’s largest hydrogen pilot plant, with an aim to reduce CO2 emissions in steelmaking by 80%. The German steelmaker ThyssenKrupp has conducted trials with hydrogen and aims to commission new hydrogen furnaces in the mid-2020s. The world’s largest steelmaking company, ArcelorMittal, has demonstrated the replacement of coal with hydrogen in the blast furnace. They are also in the process of converting their Ilva works (the largest steel plant in Europe) to use an Electric Arc Furnace (EAF), eliminating the need for coal. The first blast furnace is scheduled for closure and replacement with an EAF as early as 2024. Liberty Steel group, operating largely in Australia and Eastern Europe, has announced that it intends to be carbon neutral by 2030. It intends to achieve this by investment in new hydrogen steelmaking technologies.
    YMLADRIS
    YMLADRIS --- ---
    38 ℃ (100.4 ℉)
    The temperature last Saturday in Verkhoyansk, Siberia. If verified, it breaks the record for the highest temperature ever recorded in the Arctic. (The Washington Post | 5 min read)


    https://www.washingtonpost.com/weather/2020/06/21/arctic-temperature-record-siberia/
    TADEAS
    TADEAS --- ---
    PAD: co je nerealny? nevim ted, na co presne reagujes. ze si nemuzes dovolit to sezonni ukladani do vodiku? to chapu, je to drahy. kdykoliv se nevyuziva uz vybudovana dostupna infrastruktura, ale ta infrastruktura se internalizuje (az do offgrid reseni), tak na sebe investor prenasi naklady na tuhle infrastrukturu.

    ty navrhujes zalozit udrzitelnost vytapeni na dreve/biomase. ok, v nejakym kontextu to dava smysl a jelikoz nam tu zkolabovaly plantaze stromu aka lesy, je to aktualne taky velmi levnej zdroj. drevo uz tolik nefunguje v kontextu koncentrovanejch sidel, rekneme ze na provoz takovyhohle domu co rikas potrebujes energeticky vyuzivat treba hektar lesa.

    co se tyce elektriny, vzdycky musis vymyslet jak vyrobu tak skladovani, a to sezonne, pokud se bavime o tom, ze se to generuje lokalne. samozrrjme se to da vzdycky odnekud importovat.

    je tam otazka ty automatizace - peletky si musi nechat privyzt, takze je kupujes, nekdo je udela, je to importovany palivo. nebo si je delas sam a pak musis intenralizocat tuhle infrastrukturu, starat se o ni a udrzovat ji v provozu. nebo se musis kazdodenne starat o zplynovaci kotel na drevo. drevem taky nemuzes dochladit, narozdil od TC na elektrinu. chlazeni tu bude za chvili stejny tema jako vytapeni.

    samozrejme, nejlip se to vyresi snizenim naroku na rozlohu budov atd. a snizenim prubezny energeticky narocnosti. ale v principu tu furt podle me zustava otazka, jak tyhle infrastruktury zivit energii aniz bychom spalovali produkci biosystemu, musime to brat z toho slunecniho kanalu rovnou.
    PAD
    PAD --- ---
    PAD: m3 jsem mel na mysli
    PAD
    PAD --- ---
    TADEAS: Je to super, snad se toho doziju. Zatim je to v ceskych podminkach nerealny. IMHO mnohem vetsi leverage daji uspory - zateplovani, mozna i zmenseni staveb (fakt nechapu, k cemu maji lidi dnes mnohdy i >200m2 plochy), fotovoltaika a tam, kde to lze, tak drevo.
    JIMIQ: To je cena celyho baraku, pokud ses ochotny leccos udelat sam. Nikdy se to nema sanci zaplatit. Cena dreva je dnes 400korun/m2 vcetne dopravy, cili topeni a TUV (okolo 70-80% veskere energie, co domacnost spotrebuje), muzes poresit za 5000 korun/rok (pri tepelnych ztratach ~8kw). Pokud leto pokryjes fotovoltaikou, tak jeste vic. Ani to nemusi byt pasiv. Nevyhodou je skladovani a pracnost (ta muze byt pro nekoho vyhoda).

    Chci tim celym jen rict, ze k udrzitelnejsimu bydleni neni treba high tech ani hodne penez. Staci jen chytre poskladat to, co uz je dostupne a obetovat trochu prace.
    KEB
    KEB --- ---
    Americká aktivistka Erin Brockovichová slaví šedesátiny - Ekolist.cz
    https://ekolist.cz/cz/zpravodajstvi/zpravy/americka-aktivistka-erin-brockovichova-slavi-sedesatiny

    Patří to sem jen velmi okrajově, ale i tak gratulujeme k životnímu jubileu :-)
    SUMAC
    SUMAC --- ---
    https://www.nature.com/articles/s41467-020-16941-y

    For over half a century, worldwide growth in affluence has continuously increased resource use and pollutant emissions far more rapidly than these have been reduced through better technology. The affluent citizens of the world are responsible for most environmental impacts and are central to any future prospect of retreating to safer environmental conditions. We summarise the evidence and present possible solution approaches. Any transition towards sustainability can only be effective if far-reaching lifestyle changes complement technological advancements. However, existing societies, economies and cultures incite consumption expansion and the structural imperative for growth in competitive market economies inhibits necessary societal change.

    vedecky prokazany a v Nature opublikovany zaver, ze bohati znicili planetu.

    TADEAS
    TADEAS --- ---
    JIMIQ: 80% casu, ale z hlediska spotrebovany energie to bude vic, protoze to je cast roku kdy ji nejvic potrebujes. takze v tom smyslu ten energetickej mix kterej ti zajistuje grid je to, co pouzivas. takze pokud chces ted dekarbonizovany high-tech teplo/chlad, je to mozny, a drahy. :)
    JIMIQ
    JIMIQ --- ---
    no však píšu 80% - to nechává 2,5 měsíce z gridu. A kvůli 20% investovat dalších 50% navíc je nesmysl, že jo. To si radši počkám, až to bude sériová výroba a bude to stát třetinu
    TADEAS
    TADEAS --- ---
    JIMIQ: i s tou kombinaci pasiv + TC ve vrtu to porad vychazi tak, ze potrebujes nejaky jednotky MWh elektriny/rok na pohon systemu, hlavne v chladny casti roku - kde je vezmes? bud to bude vychazet virtualne, tj. pocitas napr. pouze vyrobu FVE, ktera ti ze strechy takovy mnozstvi energie bez problemu vyrobi a tvoje uloziste je grid. nebo chces aby to fungovalo nebo vychazelo offgrid, pak musis resit sezonni ulozeni a podle me v soucasnosti neni jina (technologicka) cesta nez ten vodik. nebo to muzes zalozit napr. na peletkach, coz je taky obhajitelny, ale pak to nebude TC. plus vetsi narok na prostor (peletky), ktery se musej odnekud privyzt nebo zpracovat z lokalniho dreva. to je co se tyce vytapeni, elektrinu taky musis nejak vykrejt sezonne, pokud chces soucasnes standard spotreby. nicmene v cechach partnera zatim nemaj, prej nejdriv rakousko a svycarsko.
    JIMIQ
    JIMIQ --- ---
    ale jako jo, v Německu dotace 12500, tak když stačí ta levnější varianta jseš na 47500, to je tak půl až celoroční plat podle druhu zaměstnání. To je pěkný. Takže u nás by museli zlevnit 3x... takže 2025? :D
    JIMIQ
    JIMIQ --- ---
    TADEAS: “neustale”, chci mit pasiv, TC a FVE, 80% snad pokreju i kdyz mozna ne hned
    TADEAS
    TADEAS --- ---
    TADEAS:

    WEBINAR - Fuel cells and hydrogen: the missing link to decarbonise Europe’s building stock?
    https://www.youtube.com/watch?v=JJrXtu3JzG4


    WEBINAR: Fuel cells and hydrogen - the missing link to decarbonise Europe’s building stock? (Tuesday 26 May | 11:00 to 12:00 CET) - PACE
    http://www.pace-energy.eu/...-to-decarbonise-europes-building-stock-tuesday-26-may-1100-to-1200-cet/
    TADEAS
    TADEAS --- ---
    JIMIQ: jj, energeticky nesobestacnyho baraku do kteryho neustale importujes energie/materialy. je to na zacatku.
    JIMIQ
    JIMIQ --- ---
    TADEAS: to by se mi líbilo, 60-90 tisíc eur teda... to je skoro polovina ceny baráku :D
    YMLADRIS
    YMLADRIS --- ---
    Who Is Responsible For Climate Change? – Who Needs To Fix It?
    https://www.youtube.com/watch?v=ipVxxxqwBQw


    Gates konecne zasponsoroval climate change serii od kurzgesagtu, zde prvni dil, polopaticka videa pro kazdeho (dodelejte nekdo ceske titulky)
    TADEAS
    TADEAS --- ---
    Green Heating and Cooling | Hydrogen
    https://hydrogeneurope.eu/green-heating-and-cooling

    Heating and cooling consume half of the EU's energy. Although this sector aims at being a clean and low carbon energy, 75% of the fuel it uses still comes from fossil fuels (nearly half from gas). The sector is based on a vast, European interconnected gas infrastructure which delivers the needed energy to heat homes in the EU.

    If Europe wants to decarbonise heating and cooling it faces several options:
    Through the electrification of heating with heat pump or electric heaters or via the introduction of renewable gas such as hydrogen or biogas.

    The electrification options are feasible for a number of building (new builds only and that are well insulated and where low temperature heating through the floor is possible) but the majority of the building stock today is not compatible. Moreover, the demand of heat is concentrated in winter time when renewables are less available. Additionally, a complete electrification of heat would imply that the gas grid is no longer used and becomes a stranded asset.

    ...

    There are three ways to decarbonise the gas grid: Green and Decarbonised Hydrogen:

    * Green hydrogen through water electrolysis using renewable electricity.
    * Decarbonised hydrogen through natural gas reformation with carbon capture and storage.
    * By-product hydrogen taken from an unavoidable source of hydrogen which would have been otherwise flared or ineffectively burnt for electricity generation.

    The gas infrastructure decarbonisation through the introduction of high share of such hydrogen, firstly through a blending with natural gas and in the future possibly to a complete conversion to 100% hydrogen system is a reality that needs to be acknowledged and pushed for.

    Additionally, this enables a greater integration of renewable energy sources and a direct reduction of greenhouse gas emissions. Furthermore, due to the increased share of intermittent renewable energy sources (wind and solar) in the European energy system, the utilisation of the vast gas infrastructure as an energy storage asset is an opportunity (the green gas being used in homes but also in gas-fired power plants (link to sectoral integration).

    Hydrogen represents the optimal overall solution for long-term, carbon-free seasonal storage.
    TADEAS
    TADEAS --- ---
    ad homescale vodik, co lze v nemecku poridit (v cechach nemaj partnera, nechcete nekdo rozjet .)

    TADEAS

    TADEAS
    TADEAS --- ---
    TADEAS, TADEAS:

    Hy2green - Das Energiespeicher-System für natürliche Energiequellen : Hy2green
    https://www.hy2green.com/

    Hydrogen is generated from electrical energy by means of electrolysis and fed into storage tanks filled with metal powder. Here, the hydrogen enter into the metal structure and remains as a safe and stable compound – which is known as metal hydride. This compound can be released again by simply adjusting the pressure and temperature. The released hydrogen is fed into a fuel cell and converted back into electricity and heat. The only residues are oxygen and water – natural elements and no environmental pollution!

    The integrated heat management system captures the conversion energy that is lost as heat and makes it available to the application’s heat cycle. This significantly increases the energy efficiency of the entire system.

    The result: An efficient zero emission electrical and thermal power system.

    ...

    The Hy2Green system covers energy storage ranges from 80 kWh to 66MWh and can be tailored to the application need. Its modular system approach offers a perfect integration of short term (day-night) storage types (e.g. electric batteries, hot water accumulators) enabling highest system flexibility.
    SHINIGAMI
    SHINIGAMI --- ---
    YMLADRIS: antrax ti neudela apidemii
    Kliknutím sem můžete změnit nastavení reklam