Piero Carlo dos Reis

@gnievchenko @Happieststeve @mar_olczak Nah all good i just thought @Happieststeve was not wrong in raising this disclaimer (which agrees also with your other posts as you say) Anyway thanks for reference, plan on including in some future research I will do

@Happieststeve @gnievchenko @mar_olczak 2nd remark/question Mazzotti ETH's group is top expert on CCS & I had taken one of their CCS courses back in my studies Their results are valid, but do their results apply to commercial-scale systems or to lab systems? --> certain degree of uncertainty from lab to commercial

@Happieststeve @gnievchenko Sorry but this time i agree with @Happieststeve Look at picture-analysis below in energy transitions"making the hydrogen economy possible" Methane leakages can increase almost 10-fold lifecycle ghg emissions @mar_olczak Would be curious to learn more on their data/methodology

@KWitecka Thanks! Want to dig deeper into the topic at a latter time, and would like to exchange more insights then

@ReisPiero Another option would be to use direct air capture carbon to make green feedstock for the chemical industry. The chemical industry could produce climate-neutral plastics out of it. In a closed carbon cycle it would be a negative emission, too.

Remember the old “heavy industry is hard-to-abate” narrative? We’re starting to see a big shift: Global industry is the 1st sector to reach net-zero by ~2045 and generates negative emissions after 2045 according to IRENA’s 1.5C scenario. Inspiring! Let’s make it happen!

@KWitecka Thanks! I was associating industry with only 'industrial processes', but not industrial energy uses. So in that case what you say is valid.

@ReisPiero Piero, one likely option would be bioenergy + CCS (BECCS). Technically, you would use biomass to generate high-temperature heat and capture and store the biogenic carbon. This can be done in cement, chemicals, steel, pulp and paper.

@mtaylor_nz @Ilaria_C80 @nicolorossettoP @mar_olczak Thanks ! @mtaylor_nz

@ReisPiero @Ilaria_C80 @nicolorossettoP @mar_olczak There seem to be opportunities for lower cost renewable hydrogen earlier than might be expected, scale of supply yet to be determined, but we are working on it. irena.org/publications/2…

Hydrogen from green electricity is still relatively expensive. Costs must go down to make it competitive with other fuels. Electricity prices are a fundamental factor. #IAEE2021online is debating on this right now. Follow @Ilaria_C80 and @mar_olczak for more #HydrogenRevolution

@gnievchenko Bravi!

@gbrueckmann I can try but no guarantee it will be right 😂

@gbrueckmann Then you get no answers sadly ;p

@KWitecka @RENEWIndustry Thanks for informative reference and good point Besides cars, are there other steel-intensive which EU consumers normally use? As for electricity, would be curious on seeing the impact (e.g., trade balance in scenarios and whether the CBAM could be incorporated in scenarios)

Great overview of which countries would be most affected by an EU CBAM on basic materials and electricity. It’s interesting that both China & US do not seem to be as strongly affected. Question: what about imports of finished goods (CO2-intensive steel in cars?) @RENEWIndustry

@RonnieBelmans @gnievchenko Same question Check out assumptions in the working paper we published at fsr fsr.eui.eu/publications/?… +check assumptions on land use considered by JRC Enspreso, and type of modelling they do

@gnievchenko How much green electricity do you assume for non-hydrogen production? How much for production of hydrogen?

@JesseJenkins @gnievchenko @Drake_Daniel_35 @anunezjimenez Thanks!

@ReisPiero @gnievchenko @Drake_Daniel_35 @anunezjimenez As of 2018, about 6.8 million tons/year (68% of US total production of hydrogen of 10 megatons/year) energy.gov/eere/fuelcells…

@gnievchenko @Drake_Daniel_35 @anunezjimenez @JesseJenkins Are you aware of any good estimates on recent H2 demand by refineries in USA? I tried looking into Net Zero America database but no clue there (that I was able to find). Any references would be much appreciated

@masoninman @gnievchenko @Drake_Daniel_35 @anunezjimenez @JesseJenkins In the end, I got 5.5 Mt H2/yr Which interestingly enough is just slightly bigger than EU's 4.1 MtH2/yr

@masoninman @gnievchenko @Drake_Daniel_35 @anunezjimenez @JesseJenkins Thanks! Quite useful

@Drake_Daniel_35 @gnievchenko @anunezjimenez @JesseJenkins Thanks!

@gnievchenko @Drake_Daniel_35 @anunezjimenez @JesseJenkins @caitlinswalec So far I estimated 8.0 MtH2/yr I multiplied the EU H2 demand for refineries in 2020 : 4.1 MtH2/yr (Agora Energiewende) By the ratio of refinery capacity in USA & in EU (1.92, based on data from eia.gov & statistica) Seems reasonable, but references are welcome

@LeonNelen @JMGlachant @IA4EE @FSR_Energy @nicolorossettoP "MSRs are one of six reactor technologies selected by the Generation IV Forum (GIF), an initiative involving 13 countries focused on next generation nuclear power technologies, for further R&D." iaea.org/newscenter/new…

@LeonNelen @JMGlachant @IA4EE @FSR_Energy @nicolorossettoP I am not familiar with this design But isnt it one of generation IV reactors? As far as I remember, Coolant fluid has to consider several dimensions: * heat transfer * mass transfer * reactor safety (how material reacts with radiative environment & behaviour in accident) ...

Hope you are looking forward to #IAEE2021online session "the role of #Nuclear in #decarbonization strategies" Chair Michel Berthelemy, @OECD NEA Speakers @ValerieFaudon, SFEN @SamaBilbao, @WorldNuclear @NicolettaBatini, IMF Christopher Bowbrick, UK BEIS @nicolorossettoP