Comment Log Display

19 Aug 20 0900:  "CA C-neutral by 2045"  Good analysis, good
presentation.  Thank you.

Two questions, please:   First, related to Tim's & Bud's earlier
questions.  Bud forgot to mention Alaska-source CO2-emission-free
energy, perhaps as tanker-loads of C-neutral Hydrogen carrier
liquids, such as ammonia (NH3) and methyl cyclohexane (C7H14) . 

1.  Have you considered, and should we all consider and develop as
a case, alternatives to assuming "high electrification", which I
assume means that the electricity Grid is the primary decarb vector
?  Given CA's large transportation energy demand, and that a
dedicated gaseous hydrogen pipeline system will probably be
required by 2045, and that "packing" the pipeline network provides
a large amount of free energy storage, and that hydrogen will be
used for industrial feedstocks as well as for energy, then perhaps
the optimized C-free  CA economy in 2045 will be an [energy +
feedstocks] economy, using the hydrogen infrastructure system of
generation, gathering, transmission, storage,  distribution and
end-use, as the backbone infrastructure  -- much of it underground
-- with electricity limited to the "first and last km, or few km"
of the total CA C-free [energy + feedstocks] system ?   Should you,
and we, develop this as a case ?

2.  Should you, we, assume that by 2045 CA's transportation modal
mix will be the same as today's ?  By 2045, to accommodate millions
fleeing rapid sea level rise, CA may need to overlay on its
low-density urbanized areas novel, high-density modules of 100,000
people or more, entirely excluding personal  vehicles from the
urbanized area, a topology based on new fixed-guideway  closed
loops -- i.e donut, torus.  Should you, and we, develop this likely
"CarFree" trend as a case, as an alternative ?

 I've spent the past 20 years researching renewables-source,
CO2-emission-free, energy systems based on hydrogen, and "the other
hydrogen", anhydrous ammonia, presenting the results at energy
conferences worldwide and in USA, so I hope I have some useful
insights.  Presentations are available at
www.leightyfoundation.org/earth.php  Thank you.