183 Matching Annotations
  1. Last 7 days
    1. Ultimately, if you oppose nuclear power, wind turbines or solar panels, now is the time to stop. Whatever you think the risks are, dependence on a dictator is worse.

      Interesting take on energy security in Europe and nuclear energy

  2. Jan 2023
    1. Extrem interessanter Artikel von Alex Turnbull über die unzureichenden Modellierungen von Waren- und Rohstoffströmen, vor allem in Bezg auf fossile Energien. Politische und wirtschaftliche Entscheidungen werden aufgrund unzureichenden Wissen über Logistik und Infrastruktur getroffen.

    1. Amazing visualisation showing the source of Germanys natural gas supplies. Reckon a lot of European countries will have similar trends last year.

      Data visualisation of German Natural Gas

    1. But that’s just one way to get batteries into low-income customers’ homes. Sunrun also acts as a third-party owner of solar and battery systems that Grid Alternatives installs for customers that can’t or don’t want to borrow money to finance it. Third-party owners can monetize the value of federal tax credits for low-income households that don’t pay a large enough federal tax bill to take advantage of the credits themselves. 

      This feels like the project partner thing from before - income households can't access the support themselves, so you need an intermediary to arrange someone with a tax bill to recude, and presumably take a cut in the process.

    2. Participants will get zero-interest loans to finance the equipment and installation costs, plus monthly credits in exchange for allowing MCE to tap that equipment to reduce its need to buy high-priced energy during the peak hours of 4 p.m. to 9 p.m. The program is open to households that currently lack rooftop solar as well as households that have already had solar installed by Grid Alternatives and want to take advantage of that self-generated power to heat their homes or charge their cars, said Alexandra McGee, MCE’s manager of strategic initiatives.

      If it's cheaper to deploy batteries in low income communities than build peakers, then the flipside is that they have to accept less reliable power. At this way communities are compensated, though I guess?

    1. Expansion is led by focus. By taking time to edit, carve up, and refactor our notes, we put focus on ideas. This starts the Great Wheel of Positive Feedback. All hail to the Great Wheel of Positive Feedback.

      How can we better thing of card indexes as positive feedback mechanisms? Will describes it as the "Great Wheel of Positive Feedback" which reminds me a bit of flywheels for storing energy for later use.

    1. The latest electricity demand, generation, capacity and CO2 data for as many countries and regions as possible, available freely and easily to help others speed up the electricity transition.

      (Global) Electricity Data Explorer

    1. I have compiled a list of database sources for global information about energy so you can save time.

      List of database sources for global information about energy

    1. Renewable Energy Communities as Modes of Collective Prosumership: A Multi-Disciplinary Assessment

      Shubhra Chaudhry. Articles 2022. Hanze + Frauenhofer Institut. Renewable Energy Communities as Modes of Collective Prosumership

    1. Here are the 10 courses to complete that cover major aspects of the energy industry -

      Educational resources from universities about the Energy Transition

  3. Dec 2022
    1. Watch along as lead author Heymi Bahar & I launch IEA’s Renewables 2022 report and discuss the key findings ⬇️

      Video of key findings of IEA Renewables 2022 Report

    1. 6 key insights into accelerating the energy transition <img src="https://assets.weforum.org/article/image/o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.jpg" srcset="https://assets.weforum.org/article/image/responsive_big_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.jpg 1600w, https://assets.weforum.org/article/image/responsive_large_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.jpg 800w, https://assets.weforum.org/article/image/responsive_medium_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.jpg 485w, https://assets.weforum.org/article/image/responsive_small_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.jpg 350w, https://assets.weforum.org/article/image/responsive_tiny_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.jpg 97w" webp_srcset="https://assets.weforum.org/article/image/responsive_big_webp_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.webp 1600w, https://assets.weforum.org/article/image/responsive_large_webp_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.webp 800w, https://assets.weforum.org/article/image/responsive_medium_webp_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.webp 485w, https://assets.weforum.org/article/image/responsive_small_webp_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.webp 350w, https://assets.weforum.org/article/image/responsive_tiny_webp_o1s9nmmQY2-K5Io_3NYU5bfvGIvioGJ1d87kY3BkXgc.webp 97w" sizes="100vw" html="{:loading=&gt;&quot;eager&quot;, :class=&gt;&quot;&quot;, :alt=&gt;&quot;wind turbines energy transition&quot;, :style=&gt;&quot;width: 100.0%; margin-left: -0.0%; margin-top: -11.64%;&quot;}" use_picture="true">

      World Economic Forum - 6 key insights into accelerating the energy transition

      1. The energy transition is not keeping pace with the growing urgency for change.

      2. Lack of access to an affordable energy supply has emerged as a threat to a just energy transition.

      3. Energy diversity - and security - are in short supply.

      4. Regulatory frameworks need to be strengthened to meet the moment

      5. Demanding change increasingly means changing demand

      6. Industrial-strength decarbonization requires industrial-strength collaborations

    1. "There's so much pressure and emphasis on getting the Green Revolution happening that it's almost by any means necessary without that pause of 'well it is green, but is it as green as it should be?"

      Circular Economy for the Energy Transition

    1. Ca 4% des Ökostroms in Deutschland gehen im Augenblick verloren, weil die Netzinfrastruktur unzureichend ist. Am stärksten betroffen ist offshore-Windkraft. Drei Viertel der fehlenden Kapazitäten entfallen auf die Übertragungs-, ein Viertel auf die Verteilungsnetze. Produktionsverzicht und überflüssige Produktion führen zu Kosten von fast anderthalb Milliarden Euro im Quartal.

    1. The ZEBRA (Zero wastE Blade ReseArch) consortium has produced the first prototype of its 100 per cent recyclable wind turbine blade.

      First Fully Recyclable Wind Turbine Blade Rolls Out

    1. How offshore wind and renewable power-to-X can help solve Europe’s energy crisis

      Orsted whitepaper - offshore wind and renewable power-to-X

    1. how would the energy systems be different in the new system under your Maslow hierarchy framing? 00:43:15 Simon Michaux: I've been giving some thought about what energy actually is and how does it serve us. At the moment, energy is used for transport a lot. So our energy systems will have to empower transport somehow differently. And so this is the whole electric vehicles and buses. So I think the electric system will happen, but at least substantially smaller. 00:43:42 Excuse me. So for example, we would see more buses, more communal transport, and less individual cars. We might have the idea of car sharing where instead of owning a car, we might book a car in. This is the idea of the self-driving car. That might happen in a small scale. It won't be enough to replace our existing systems. 00:44:05 So the form of energy comes when it comes. It will be different to what we have now. And everything around it, including our technology, will have to evolve. And part of that I can see for example, instead of one big giant seamless power grid that delivers sinusoidally pure power all the time, and our electronics cannot cope with anything else, I can see a situation where we will evolve an engineering electronics that can 00:44:29 cope with variable power. So if a power grid goes up or down, if we get power blackouts, it doesn't cook the electronics. So instead of seamless, we now have a non-linear production of power and its outcomes. So that means- Nate Hagens: There would be no demand for such a product now. Simon Michaux: No, no. Because no one thinks it's necessary. So if instead of one big grid, we had lots of micro grids that are connected together. 00:44:54 And they sometimes transfer power between them. And sometimes when things get difficult, they could shut down one or all of them without actually damaging themselves and they could start up at any time. And each of those micro power grids will be around an industrial activity of value. For example, a power grid will be around a hospital. And that hospital will then also be surrounded by a community of people who operate that 00:45:18 hospital. And the food systems for that hospital, but all comes off that one power grid. It's reason to be is that hospital. And we might attach schools to it, that sort of thing. And so our energy will be organized very differently. And so it may well be things like solar panels, wind turbines. But we should also consider unconventional stuff, like some of the really weird ones, like the kinetic kites are an unusual energy system. 00:45:43 I don't know if they're viable in the current environment. But if things get more difficult, we might try such things. All unconventional and unorthodox ideas must be looked at and taken seriously, and the alternative is we go without. That's how I sort of see energy going.

      !- Futures Thinking : Maslow's Hierarchy framing of Energy - substantially lower energy than currently available - many autonomous, mesh-networked micro-grids around which appropriate human functions will be simultaneously served by

    2. But 80% of the sector is already off fossil fuels. Our entire transport sector is fossil fuels. And that's actually the main challenge. But we've got a lot of heavy industry here like smelters and factories, and they're all 00:03:52 running on non fossils fuel energy. And so we can actually run an industrial sector without fossil fuels right now, which is amazing.

      Finland renewable energy stats: 80% is renewable transport sector is still dependent on fossil fuels heavy industry such as smelters and factories all run on renewables

    3. today what I'd like to do, if you're willing, is start to construct a framework for how we start to prepare for what's ahead. What is the hard work that's going to make need to be done? And what are the buckets that people and governments need to focus on?

      !- objective : interview - direction we must move in if we are not to be energy and mineral blind

    1. In Deutschland scheitert der Ausbau der Windkraft nach wie vor an Vorschriften und an mangelndem Engagement von Landes-, aber auch Bundesbehörden. Die taz dokumentiert die aktuelle Lage ausführlich, unter anderem mit einer interaktiven Karte, die zeigt, wo Windkraftanlagen möglich wären. Sie hat dazu Claudia Kemfert und Thorsten Lenk von Agora Energiewende befragt.

    1. In Frankreich ruft der Wirtschaftsminister Bruno Le Maire einen Kulturkampf für die Atomkraft aus. Dabei geht es einerseits um mehr Einnahmen für den komplett verstaatlichten Konzern EDF und andererseits darum Atomkraftwerk zu einem Exportschlager zu machen. Im Januar will man eine Leistung von 45 GW erreichen, im Jahr wieder 430 TWh.

    1. An Indian state produces more wind power than Sweden or Denmark..Thats quite a welcome surprise...Perception is that Europe was leading the race on renewables.. but India 🇮🇳 is marching ahead..

      Energy Transition Wind in India

  4. Nov 2022
    1. Der österreichische Energieverbrauch beträgt zirka 404 TWh (1 Terawattstunde = 1012 Wattstunden) und steigt jährlich um mehr als 2 %. Etwa 25 % davon stammen aus erneuerbaren Energiequellen. Eine grobe Betrachtung zeigt, dass etwa je ein Drittel des Energieverbrauchs auf Verkehr, Industrie und andere Verbraucher entfällt. Ein Anteil von etwa 60 TWh wird in der Form von elektrischer Energie verbraucht. Durch die günstigen natürlichen Gegebenheiten in Österreich können etwa 60 % davon aus Wasserkraft gewonnen werden. Auf Grund des stetig steigenden Verbrauchs und in geringerem Ausmaß wegen der Liberalisierung der Strommärkte erzeugt Österreich seit dem Ende der 90-er Jahre auch bei der Elektrizität nicht mehr selbst seinen Eigenbedarf. Im europäischen Vergleich hat Österreich - vor allem auf Grund der Wasserkraft - einen hohen Anteil an erneuerbarer Energie. In Europa erfolgt die Stromgewinnung zu etwa 85 % aus fossilen Rohstoffen sowie Kernenergie und zu 15 % aus erneuerbaren Quellen. Es ist also derzeit in allen Bereichen eine überwiegende Abhängigkeit von fossilen Energieträgern gegeben.
    1. Bei seinem Besuch in Amerika wird Emmanuel macron vor allem über die Konsequenzen des Inflation reduction act für die europäische Wirtschaft sprechen. Die US-Regierung wird den Übergang zu sauberen Energien so subventionieren, dass die gesamte Wertschöpfungskette in den USA bleibt. Macron behandelt das einerseits als ein unfreundlichen Akt und setzt sich andererseits für entsprechende Subventionen in Europa ein. Der Artikel in der Libération erwähnt auch die geopolitische Dimension dieses interessenkonflikts, weil Europa auf das amerikanische Engagement für die Ukraine angewiesen ist

    1. Die europäischen Produzenten von Windturbinen Mädchen enorme Verluste. Die Hauptgründe sind Kostensteigerungen und logistische Probleme. Hinzu kommen Investitionen für neue, stärkere Modelle und chinesische Konkurrenz. Ein zusätzliches Risiko könnte die Förderung der US-Turbinen-Industrie durch die Biden-Administration darstellen. Die europäischen Produzenten erwarten mehr Unterstützung durch die Regierungen, um Kompetenzen in Europa zu halten.

    1. The novelist and screenwriter Raymond Chandler said he avoided reading books written by someone who didn’t “take the pains” to write out the words. (It used to be common for writers to dictate into a recorder then have an assistant transcribe those words.) “You have to have that mechanical resistance,” Chandler wrote in a 1949 letter to actor/writer Alex Barris. “When you have to use your energy to put those words down, you are more apt to make them count.”
  5. Oct 2022
  6. Sep 2022
    1. Dit gaat waarschijnlijk gelden voor een gemiddeld verbruik tot 1.200 kubieke meter gas en 2.400 kilowattuur stroom. Voor al het verbruik boven deze grenzen betaal je de hogere marktprijs. Het kabinet schat dat huishoudens hierdoor 190 euro korting per maand krijgen.

      Hoe is dit berekend? Ik zit op een gemiddeld verbruik qua gas, en kennelijk 1000 kWh bovengemiddeld qua stroom (gem 2400kWh) / jr. Maar ik betaal, ondanks flexibel contract, niet zoveel dat 190 korting per maand zelfs maar mogelijk is. Er is 100 in de maand bijgekomen in de loop van het jaar. Zijn de verschillen zo groot tussen leveranciers dan? (Wellicht die tussenhandelaren die geen eigen productie hebben? Altijd een een leverancier kiezen die zelf productie heeft zou ik zeggen). Of zijn de bedragen het gemiddelde bespaarde tijdens het stookseizoen en de verbruiksgetallen op jaarbasis?

    1. Renewable energy critics argue that wind and solar are not reliable sources because of their variability. Others argue that wind farms encroach on pristine environment and destroy a country’s natural habitat, as is the case with the installation of thousands of wind turbines on scores of Greek islands in the Aegean Sea. How would you respond to such concerns, and are there ways around them?
    1. here are those same numbers compared 00:41:21 against reported global reserves so there's the amount of metal we need and there is the global reserves this column is the proportion of metals required to 00:41:33 phase out fossil fuels as a percentage that is of all the copper we need to make one generation of units current global reserves will get us 19.23 00:41:45 of the way there we don't have enough copper for one generation

      !- for : metals for energy transition - only have 19% of metals required for the first generation of phase out

    2. we used to have 500 years ago a small human system a big pile of natural resources and a small pollution plume 00:46:47 an industrial ecosystem of unprecedented size and complexity that took more than a century to build with support of the highest calorifically dense source of cheap energy the world has ever known that would be oil 00:46:59 in abundant quantities with easily available credit and unlimited mineral resources and now we've got a system that's a human system that's really large 00:47:10 a depleted natural resources [Music] portfolio compared to what we had but we've now got a massive pollution stream so now we seek to build an even more complex system with very expensive 00:47:24 energy a fragile finance system saturated in debt not enough minerals with an unprecedented number of human population embedded in a deteriorating environment 00:47:35 so at this point i'm going to say this is probably not going to go as planned

      !- key finding : green growth is not likely to be feasible - Simple diagram that illustrates the problem

    3. it also is summed together so everything we need is summed together per metal and that gives us this column here total metal required to produce one generation of technology units to phase 00:40:15 out fossil fuels and so that the that we've got these numbers here the next column is global metal production as it was from mining in 2019 00:40:28 so this is all from the usgs and the bgo the final column is how many years of production at the 2019 rate um would be needed to hit the actual 00:40:42 volumes needed so 2019's the last year before covert is the last year of stable data that's why i've used it so you might notice some of these numbers are rather large 00:40:55 like we will need seven thousand one hundred and one years of production to produce the needed number of volume of vanadium that's your uh your redox batteries

      !- for : metals for energy transition - unfeasible numbers

    4. the idea that we're going to do this in seven or eight years is very amusing so then the question is oh we'll just open more mines it's simple right

      !- for : metals for energy transition - not feasible

    5. if we want to deliver a thousand terawatt hours a year using these systems you could use 142 00:29:07 coal-fired power stations or 30 000 solar pv arrays or 12 309 wind turbine arrays of average size 00:29:18 where each array is like 10 win windows this is this is where we're getting the extra numbers from so each of these sites will have to be built and constructed and maintained and then when they wear out they need to 00:29:30 be decommissioned so renewables have a much lower energy return on energy invested ratio than fossil fuels and they and the the truth is they may not be strong enough to power the next industrial era 00:29:45 so gas and hydro power generation has to balance with demand supply and demand has to balance otherwise the grid will age

      !- for : EROI, energy density - lower energy density = more plants

    6. let's put the electrical power systems together these electrical power 00:22:29 systems that this is actually on the low side because most industrial action happens with the consumption of coal and gas on site and then it's converted to energy on site this is what's just been drawn off the power grid 00:22:42 so there's a vast amount of energy associated with manufacturing that is not included here and that is actually a huge piece of work to include that so these numbers i'm showing you are very much on the low side 00:22:55 so we're going to put it all together we need 36 000 terawatt hours all there abouts that's a that's a very low estimate

      !- key insight : minimum power of energy transition, excluding the large amount of energy for industrial processes ! - for : energy transition, degrowth, green growth

    7. assessment of extra capacity required of alternative energy electrical power systems to completely replace fossil fuels

      Title: Assessment of extra capacity required of alternative energy electrical power systems to completely replace fossil fuels Author: Prof. Simon Michaux, Geological Survey of Finland (GTK) Year: 2022

  7. Aug 2022
    1. Results indicate that participants were more likely to interact with their smartphone the more fatigued or bored they were, but that they did not use it for longer when more fatigued or bored. Surprisingly, participants reported increased fatigue and boredom after having used the smartphone (more). While future research is necessary, our results (i) provide real-life evidence for the notion that fatigue and boredom are temporally associated with task disengagement, and (ii) suggest that taking a short break with the smartphone may have phenomenological costs.

      We grab our phones when tired or bored at work. But it seems to make us more tired and more bored. Does the same apply for internetbrowsing before mobile?

  8. Jul 2022
    1. The energy sector contains a large number of long‐lived and capital‐intensive assets. Urban infrastructure, pipelines, refineries, coal‐fired power plants, heavy industrial facilities, buildings and large hydro power plants can have technical and economic lifetimes of well over 50 years. If today’s energy infrastructure was to be operated until the end of the typical lifetime in a manner similar to the past, we estimate that this would lead to cumulative energy‐related and industrial process CO2 emissions between 2020 and 2050 of just under 650 Gt CO2. This is around 30% more than the remaining total CO2 budget consistent with limiting global warming to 1.5 °C with a 50% probability (see Chapter 2)

      Emissionen durch die Verfeuerung der vorhandenen Assets: 650 Gigatonnen

      Das bedeutet eine 30prozentige Überschreitung des CO2-Budgets für 50% Wahrscheinlichkeit des 1,5°-Ziels

    1. now we talk i talk about a few ideas good regulators requisite variety self-organized criticality and then the 01:35:04 free energy principle from active inference um and uh maybe i'll just try to briefly talk mention what's what those means for what those ideas mean for people who 01:35:15 aren't familiar so good regulator really came from the good regular theorem or whatever it's called really came from cybernetics ash ashby yeah a lot his law of requisite 01:35:33 variety and uh the it's the concept is that a organism or a you know a system must be must be a model of that which it but 01:35:47 that needs to control

      These are technical terms employed in this model: * Good regulators * Requisite variety * Self-organized criticality * Free energy principle

  9. Jun 2022
    1. In basic English, “it takes two coal workers, 169 solar workers and 1,100 wind workers to equal the work of one natural gas worker.”

      One has to compare all the factors. Fossil fuels are dense but are nonrenewable. Once installed, renewables continue generating as long as the infrastructure is intact. Extending the lifetime of the infrastructure increases the cost competitiveness further. What is the net energy produced by low energy density renewables over its lifetime and how does it then compare with high density fossil fuels?

    1. Energy efficiency has never been more crucial! The time to unleashing its massive potential has come

      Will this conference debate rebound effects of efficiency? If not, it will not have the desirable net effect.

      My linked In comments were:

      Alessandro Blasi, will this conference address the rebound effect? In particular, Brockway et al. have done a 2021 meta-analysis of 33 research papers on rebound effects of energy efficiency efforts and conclude:

      "...economy-wide rebound effects may erode more than half of the expected energy savings from improved energy efficiency. We also find that many of the mechanisms driving rebound effects are overlooked by integrated assessment and global energy models. We therefore conclude that global energy scenarios may underestimate the future rate of growth of global energy demand."


      Unless psychological and sociological interventions are applied along with energy efficiency to mitigate rebound effects, you will likely and ironically lose huge efficiencies in the entire efficiency intervention itself.

      Also, as brought up by other commentators, there is a difference between efficiency and degrowth. Intelligent degrowth may work, especially applied to carbon intensive areas of the economy and can be offset by high growth in low carbon areas of the economy.

      Vaclav Smil is pessimistic about a green energy revolution replacing fossil fuels https://www.ft.com/content/71072c77-53b3-4efd-92ae-c92dc02f09ad, which opens up the door to serious consideration of degrowth, not just efficiency improvements. Perhaps the answer is in a combination of all of the above, including targeted degrowth.

      Technology moves quickly and unexpectedly. At the time of Smil's book release, there was no low carbon cement. Now there is a promising breakthrough: https://www.cnbc.com/2022/04/28/carbon-free-cement-breakthrough-dcvc-put-55-million-into-brimstone.html

      As researchers around the globe work feverishly to make low carbon breakthroughs, there is obviously no guarantee of when they will occur. In that case then, with only a few years to peak, it would seem the lowest risk pathway would be to prioritize the precautionary principle over a gambling pathway (such as relying on Negative Emissions Technology breakthroughs) and perhaps consider along with rebound effect conditioned efficiency improvements also include a strategy of at least trialing a temporary, intentional degrowth of high carbon industries / growth of low carbon industries.

  10. May 2022
    1. The advantage of ocean currents is their stability. They flow with little fluctuation in speed and direction, giving them a capacity factor — a measure of how often the system is generating — of 50-70%, compared with around 29% for onshore wind and 15% for solar.

      Have other coastal countries other than Japan explored the capacity factor for tidal energy of the currents off their shoreline? Are other currents as promising as the Kuroshio current?

    1. One example of a siloed approach to critical infrastructure is the European Programme for Critical Infrastructure Protection’s framework and action plan, which focuses on reducing vulnerability to terror attacks but does not consider integrating climate or environmental dimensions.39       Instead of approaching critical infrastructure protection as another systems maintenance task, the hyper-response takes advantage of ecoinnovation.40 Distributed and localized energy, food, water, and manufacturing solutions mean that the capacity to disrupt the arterials that keep society functioning is reduced. As an example, many citizens and communities rely on one centralized water supply. If these citizens and communities had water tanks and smaller-scale local water supply, this means that if a terror group or other malevolent actor decided to contaminate major national water supplies—or if the hyperthreat itself damaged major central systems—far fewer people would be at risk, and the overall disruption would be less significant. This offers a “security from the ground up” approach, and it applies to other dimensions such as health, food, and energy security.

      The transition of energy and other critical provisioning systems requires inclusive debate so that a harmonized trajectory can be selected that mitigates against stranded assets. The risk of non-inclusive debate is the possibility of many fragmented approaches competing against each other and wasting precious time and resources. Furthermore, system maintenance of antiquated hyperthreat supporting systems as pointed out in Boulton's other research. System maintenance is a good explanatory concept that can help make sense of much of the incumbent financial, energy and government actors to preserve the hyperthreat out of survival motives.

      A template for a compass for guiding energy trajectories is provided in Van Zyl-Bulitta et al. https://www.researchgate.net/publication/333254683_A_compass_to_guide_through_the_myriad_of_sustainable_energy_transition_options_across_the_global_North_South_divide which can also be a model for other provisioning systems.

    1. Healthy, normal nutrition status, minimal illness severity: 20-25 kcal ABW/kg/day (84-105 kJ ABW/kg/day) ++ Illness, metabolic stress (BMI <30 kg/m2): 25-30 kcal ABW/kg/day (105-126 kJ ABW/kg/day) ++ Illness, metabolic stress (BMI ≥30 kg/m2): 11-14 kcal ABW/kg/day (46-59 kJ ABW/kg/day) or 22 to 25 kcal IBW/kg/day (92-105 kJ ABW/kg/day) ++ Major burn (≥50% total body surface area [TBSA]): 25 kcal/kg ABW (kg) + 40 kcal per % TBSA burned (adult) (which is equivalent to 105 kJ/kg ABW (kg) + 170 kJ per % TBSA burned [adult]) or 25-35 kcal/kg/day (105-146 kJ/kg/day) in nonobese patients and 21 kcal/kg/day (88 kJ/kg/day) in obese patients.


  11. Apr 2022
    1. Need for Speed How offshore wind and renewable power-to-X can help solve Europe’s energy crisis

      Scaling-up renewables can help solve Europe's energy crisis

    1. ING's plan to reduce funding for existing oil and gas clients and projects is more gradual, with a target to cut it by 12% to about 3.5 billion euros by 2025.


  12. Mar 2022
    1. The steel tower is a giant mechanical energy storage system, designed by American-Swiss startup Energy Vault, that relies on gravity and 35-ton bricks to store and release energy.

      Like pumped hydro with rocks

  13. Jan 2022
    1. While heat pumps are the most cost effective way to use electricity to heat your home during the cooler months, leaving them running day and night is not economically efficient. According to Energywise, you should switch off your heat pump when you don’t need it. This is to avoid excessive energy waste.
    1. Figure\PageIndex{1}: Enzymes lower the activation energy of the reaction but do not change the free energy of the reaction.

      On the image, ΔG must be instead of ΔH.

  14. Dec 2021
    1. A related risk is that the coverage will have gaps. California is a choice spot for installing chargers, but is anyone keen on investing in Nebraska?

      Again, the question of energy equity. What about infrastructure in the global south?

    2. By 2040 around 60% of all charging will need to take place away from home,
    3. Today’s mostly wealthy owners can often plug in their EV at home or at work. But many less-well-off EV drivers will not have a drive in front of their house or a space in the executive car park.

      One of the main questions we need to address in the energy transition is equity of access to the infrastructure that enables the transition.

    4. Yet the charging business suffers from big problems. One is how to co-ordinate between the owners of charging points, the owners of the sites where they will be installed, planning authorities and grid firms.

      The challenge of building an ecosystem of partners who historically have not worked together. There’s also the question of compatibility with the past and future EV fleet.

  15. Nov 2021
    1. As the emerging field of energy humanities (168) is beginning to show, the traditions, cultures, and beliefs of contemporary, industrial societies are deeply entangled with fossil fuels in what have been called petrocultures and carbonscapes (169). Future visions are dominated by such constrained social imaginaries (170), and hence rarely offer a “radical departure from the past” (171, p. 138).

      Constructing social imaginaries that are alternatives to the petrocutultural, carbonscape ones is critical to shift the mindset.

      Carbon pollution cannot be disentangled from colonialism and social imaginaries must consist of stories that tell alternative futures narratives that address both simultaneously.

      Replace petroculture with ecoculture, doughnut economics, living within planetary boundaries and eco-civilization

  16. Oct 2021
    1. Time, energy, and matter

      This article refers to the site I created to document the design process for the builders collective: time, energy, and matter, which redirects to timeenergyresources.com.

    1. time as the new currency

      Marilyn Waring

      Time: The New Currency

      Women tend to be excluded from the national economy because their work is not paid and therefore not value or factored into the Gross Domestic Product of a nation. Money, then, is a mechanism for disempowerment.

  17. bafybeiery76ov25qa7hpadaiziuwhebaefhpxzzx6t6rchn7b37krzgroi.ipfs.dweb.link bafybeiery76ov25qa7hpadaiziuwhebaefhpxzzx6t6rchn7b37krzgroi.ipfs.dweb.link
    1. As the emerging field of energy humanities (168)is beginning to show, the traditions, cultures, and beliefs of contemporary, industrial societies aredeeply entangled with fossil fuels in what have been called petrocultures and carbonscapes (169).Future visions are dominated by such constrained social imaginaries (170), and hence rarely offera “radical departure from the past” (171, p. 138).

      Constructing social imaginaries that are alternatives to the petrocutultural, carbonscape ones is critical to shift the mindset.

      Carbon pollution cannot be disentangled from colonialism and social imaginaries must consist of stories that tell alternative futures narratives must address both simultaneously.

  18. Sep 2021
    1. https://www.youtube.com/watch?v=gJ7CyM1Zrqc

      An interesting experiment to change one's schedule this way.

      I feel like I've seen a working schedule infographic of famous writers, artists, etc. and their sample work schedules before. This could certainly fit into that.

      One thing is certain thought, that the time of waking up is probably more a function of the individual person. How you spend your time is another consideration.

      “Without great solitude, no serious work is possible.” ― Picasso

      “Everybody has the same energy potential. The average person wastes his in a dozen little ways. I bring mine to bear on one thing only: my paintings, and everything else is sacrificed to it...myself included.” ― Picasso

      Every child is an artist. The problem is how to remain an artist once he grows up. —Picasso

      see also: https://quoteinvestigator.com/2015/03/07/child-art/

  19. Aug 2021
  20. Feb 2021
  21. Jan 2021
    1. Good [open] scientific practice

      Would be interesting to look at adding a contribution from the Open Energy Modelling Community. Open Energy is concerned with bringing open science practices to the models for planning energy infrastructure. In effect this means how new energy generation and use will be brought online in our communities and cities for rapid decarbonisation. Since this effects peoples surroundings it is valuable for them to be brought into the decision making process - about how models work, options they throw up etc. In Germany this community has been developing in a very interesting way and in the US the first workshop was held in 2019.

    1. The Dogger Bank windfarm is an engineering feat that marks a step change in the growth of renewable energy. Each steel structure, weighing 2,800 tonnes, has been designed to soar more than 250 metres from where their heels are buried in the seabed to the top of each 107-metre blade
    1. Zeigt unter anderem, dass Innovationen hier das übertreffen, was erwartet wurde, und auch, dass die Frontlinien hier in der Industrie verlaufen.

  22. Nov 2020
    1. ATP

      ATP better known as Adenosine triphosphate is an energy carrying molecule found in all living things cells. ATP takes the chemical energy from the process of breaking down food molecules to releases it as fuel for cellular processes.

  23. Oct 2020
    1. At the far horizon of EGS is “super hot rock” geothermal, which seeks to tap into extremely deep, extremely hot rock.

      siphoning off energy from the spinning magnetohydrodynamic EM shield of spaceship earth seems like an obviously just terrible awful gobsmackingly bad plan for the future.

      there's absolutely no renewing this energy source. yes it's a big battery. but one that we really really hope never runs out. let's not tap it?

    1. The graphs of ground state confinement energy againstsize (radius) for zinc sulfide nanoparticles in Figure 14 showthe dependence of confinement on the size of quantum dots.The result shows that ground state confinement energy is

      Las graficas de la energía de confinamiento en su estado fundamental en contra del tamaño (radio) por nanopartículas de sulfato de zinc en la Figura 14 muestran la dependencia de confinamiento en el tamaño de los puntos quánticos. El resultado muestra que el estado fundamental de energía en confinamiento es inversamente proporciona al tamaño (radio). Por lo tanto, cuando uno incrementa su radio (tamaño) la energía de confinamiento decrece pero nunca llega a cero. Eso es, el energía mas baja posible para el punto quántica de muestra no es cero. El confinamiento comienza cuando el radio del punto cuántico de muestra es comparable o del orden del radio exciton de Bohr.

    1. Come on, harvest me! I’ll just change your world some more.

      I wonder a bit here about the idea of what in a meme might have a substrate type of effect to decrease the overall energy of the process to help it take off.

    1. Similar to my recent musings (link coming soon) on the dualism of matter vs information, I find that the real beauty may lie precisely in the complexity of their combination.

      There's a kernel of an idea hiding in here that I want to come back and revisit at a future date.

  24. Sep 2020
    1. You aren't wasting energy inventing class names. No more adding silly class names like sidebar-inner-wrapper just to be able to style something, and no more agonizing over the perfect abstract name for something that's really just a flex container.
  25. Aug 2020
    1. Chen, Y., Yang, W.-H., Huang, L.-M., Wang, Y.-C., Yang, C.-S., Liu, Y.-L., Hou, M.-H., Tsai, C.-L., Chou, Y.-Z., Huang, B.-Y., Hung, C.-F., Hung, Y.-L., Chen, J.-S., Chiang, Y.-P., Cho, D.-Y., Jeng, L.-B., Tsai, C.-H., & Hung, M.-C. (2020). Inhibition of Severe Acute Respiratory Syndrome Coronavirus 2 main protease by tafenoquine in vitro. BioRxiv, 2020.08.14.250258. https://doi.org/10.1101/2020.08.14.250258

  26. Jul 2020
  27. Jun 2020
    1. In order to measure energy, we need a unit for it. In the metric system, the standard unit of energy is the joule. The formal definition of a joule is: A joule is the amount of energy expended when an object is moved 1 meter against a resisting force of 1 newton. (You can learn all about the concept of force in a physics class.) As for the joule, here are some statements that may help you visualize this unit.  A joule is… …enough energy to lift a one kilogram object 10.2 centimeters. …enough energy to heat one milliliter of water from 20ºC to 20.24ºC. …enough energy to keep a 60 watt light bulb glowing for 0.0167 seconds. Obviously, a joule is a very small amount of energy, and in fact it is an inconveniently small amount when we describe chemical reactions. Chemists usually report energies for reactions in kilojoules (1 kJ = 1000 J).

      In order to measure energy, we need a unit for it. In the metric system, the standard unit of energy is the joule. The formal definition of a joule is: A joule is the amount of energy expended when an object is moved 1 meter against a resisting force of 1 newton. (You can learn all about the concept of force in a physics class.) As for the joule, here are some statements that may help you visualize this unit. A joule is…

      …enough energy to lift a one kilogram object 10.2 centimeters.

      …enough energy to heat one milliliter of water from 20ºC to 20.24ºC.

      …enough energy to keep a 60 watt light bulb glowing for 0.0167 seconds.

      Obviously, a joule is a very small amount of energy, and in fact it is an inconveniently small amount when we describe chemical reactions. Chemists usually report energies for reactions in kilojoules (1 kJ = 1000 J).

    1. sectoral break-up of PPP projects, we would find that almost all of the projects have come up in economic infrastructure (power, transport, and telecom) compared to social infrastructure.Social infrastructure (like water supply, solid waste management, health and education) have low cost-recovery and, consequently, face massive resource-crunch.


  28. May 2020
  29. Jan 2020
    1. Following this observation, the same group conducted a cross-sectional analysis to assess the association among 140 patients with EE and TH replacement hypothyroid treated with LT4. In this study population, REE did not differ significantly between patients achieving low-normal (TSH ≤ 2.5 μIU/mL) vs high normal TSH (TSH >2.5 μIU/mL). Conversely, free T3 level showed a direct correlation with EE, but also with indices of adiposity including body mass index (BMI), body composition, and fat free mass [49]. This latter observation is consistent with other cross-sectional studies that have clearly defined the positive association between circulating levels of T3 and adiposity [50, 51].

      This is consistent with my previous assertion that T3 may result in greater energy expenditure than T4.

    2. The authors demonstrated an inverse correlation between TSH and REE with a change of 15% for a TSH ranging from 0.1 to 10 μIU/mL. Of interest, free T4 remained within the normal range in all of the study volunteers. Nonetheless, the changes in REE with different LT4 doses were demonstrated in every patient [46].

      Thus, a 15% expected increase would be reasonable for a euthyroid subject such as myself. However, since T3 reduces weight compared to T4, it is possible the weight loss indicates greater energy expenditure.

    1. We must stop building new nuclear power plants, and find a real solution to our existing nuclear waste problem.

      We urgently need a debate to discuss and rethink this idea against nuclear energy. I strongly opine that nuclear power generation will be necessary at-least in the short term during the transition into clean energy, hopefully eventually leading to purely sustainable energy and minimizing nuclear energy.

      This article expresses the same point and points out to the German experience of not being able to contain carbon emmissions despite going green energy sans nuclear - https://theweek.com/articles/862988/what-bernie-sanders-elizabeth-warren-wrong-about-nuclear-power

    1. It goes completely against what most believe, but out of all major energy sources, nuclear is the safest

      Nuclear energy as the safest energy

  30. Dec 2019