Its an easy read book on fusion Technology but it also puts context to the energy problem.
I love the idea of fusion - and they have made some major gains recently - but it's still not on the board as an option.
Not just volumes of energy ,and reliability availability, but also less obvious aspects like the CO2 in solar mfr, but also the vast areas neeDed for energy of different technology.
The areas for some renewables are vast.
This sounds like you've inherited political blinkers from somewhere without actually investigating the facts. If we cover HALF the world’s rooftops with solar, it would provide all today’s electricity needs.
Solar panels on half the world's roofs could meet its entire electricity demand – new research Cover ALL the world’s rooftops and you’ve got enough to electrify transport and industry. Singapore's Dr. Thomas Reindl points out that floating solar panels on just a tenth of human made fresh-water reservoirs is ALL today's electricity use. The solar panels reduce evaporation of our precious fresh water, and the water keeps the solar cool and efficient. If we cover ALL our water reservoirs it is 10 TIMES today's electricity!
So ALL our rooftops and ALL our water reserves would be 12 TIMES today’s electricity use. (And I haven’t even mentioned on shore wind in farm zones and off-shore wind yet.) Even Japan with their huge population and tiny islands can power themselves 14 times over. Indonesia can float enough solar in their calm oceans to power THE WORLD. This myth that solar and wind will take up too much land just needs to die - and stinks of fear from big oil.
Upscaling the grid is not a good thing . Copper losses generate heat.
It's a GREAT thing because HVDC cables only lose 3% power per 1000 km and are largely made from aluminium.
But have you considered how many amazing efficiency gains we'll get from going renewables? How many trucks will be charged just from a warehouse roof? Have you heard of EROEI? It's Energy Return Over Energy Invested. It basically measures your
energy profit, not your financial profit. Oil used to return something like 100 times the energy it took to mine the oil. That number has been going down lately because we've used up most of the
easy oil.
“Electrify Everything” makes everything more efficient, and lower
Energy Return power sources get
more bang for their buck!
While oil was this incredibly dense energy source with a very high EROEI - the Internal Combustion Engine is terribly inefficient. Diesel wastes 50% of the energy as it burns, and petroleum is worse and
throws out 80% of the energy in a gasoline car. It’s all thrown away as heat and
only 20% of the gasoline turns into what we want - forward motion! How Efficient are Engines: Thermodynamics and Combustion Efficiency
Electric cars only throw away 23% - and convert the 77% other energy into forward motion.
Are electric cars more efficient than combustion or hybrid cars? So how does that work out with EROEI? It appears oil HAD to have a higher EROEI (as measured by BTU’s) because burning it in an Internal Combustion Engine is
SO wasteful! Instead of asking how much thermal energy there is in a barrel of oil when counting the EROEI, maybe we should emphasise what we really want - how far that oil takes you? Instead of measuring solar’s EROEI as “only” 15 to 20 times the energy it took to make the solar panel - what are those solar panels DOING with that EROEI? What work are they achieving by going into electric motors that USE 77% rather than WASTE it?
In other words - to measure like with like - should we be dividing oil’s EROEI by how much more wasteful the ICE is?
An ICE wastes 3.4 times more energy than the EV. Should we divide oil's EROEI by that much? Is the whole notion of oil’s super-high EROEI questionable now that we’ve seen how pathetically inefficient the ICE is? Is the whole notion of solar’s ‘pathetic’ EROEI also invalid?
Then there’s the energy SYSTEM to consider. The worldwide oil market burns a lot of oil mining it in foreign lands, shipping it around the world and then driving it up and down highways. Solar panels just have to be
installed once every 30 years! Then with an EV you've got an oil refinery on your roof!
Shipping and highways: When we’ve Electrified Everything, 40% of global shipping (of oil gas and coal) will just stop. There are a variety of options to replace shipping bunker oil with clean fuels - but one of them is to use a small ThorCon nuclear reactor in each ship. (ThorCon is a Molten Salt Reactor that cannot melt down.) IF we install them in the remaining ships, they go 30% faster. This means each ship is now carrying 30% more cargo in the same time, which reduces 60% shipping by a roughly a third - which is another 20% which (depending on loading and unloading) means we're down to half or even 40% of the original boats. And it also means less trains and trucks carrying fossil fuels around the place.
Local power efficiencies: When we've "Electrified Everything" especially transport, so many more options become viable. Australia has some of the biggest trucks in the world. Janus Australia have a battery-swap system that can get these huge trucks 400 to 500 km, then they just swap the batteries. A guy on a forklift does it. The batteries don't have to fast charge - which is less stress on the local grid and less stress on the batteries. They estimate they can run 10 trucks just from the warehouse roof! In a country town between the big cities, a Janus battery swap might even consider buying a local paddock to add to their battery charging. With enough solar charging enough cheap batteries during they day, they can stock up fresh batteries for the night. It's just THAT cheap!
Janus Electric
SUMMARY: Electrifying everything will not only solve climate change, increase national energy independence and security, decrease long expensive supply lines, decrease pollution and lung disease in the population, and get us into an energy system that could last
millions of years (or till the Lord returns) - but it is also just more efficient and will ultimately be cheaper and more convenient. You'll see. It's coming, fast!