149 Matching Annotations
  1. Last 7 days
    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.

  2. Nov 2022
    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.”
  3. Oct 2022
  4. 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

  5. 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?

  6. 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

  7. 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.

  8. 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.


  9. 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.


    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

  10. 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

  11. 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.

  12. 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.

  13. 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

  14. 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.

  15. 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.

  16. 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/

  17. Aug 2021
  18. Feb 2021
  19. 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.

  20. 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.

  21. 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.

  22. 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.
  23. 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

  24. Jul 2020
  25. 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.


  26. May 2020
  27. 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

  28. Dec 2019
  • Jul 2019
    1. Eliminating the fraction of demand that occurs in these spikes eliminates the cost of adding reserve generators, cuts wear and tear and extends the life of equipment, and allows users to cut their energy bills by telling low priority devices to use energy only when it is cheapest.
  • Jun 2019
    1. Smil notes that as of 2018, coal, oil, and natural gas still supply 90% of the world's primary energy. Despite decades of growth of renewable energy, the world uses more fossil fuels in 2018 than in 2000, by percentage.
    1. In the Chernobyl disaster, the moderator was not responsible for the primary event. Instead, a massive power excursion during a mishandled test caused the catastrophic failure of the reactor vessel and a near-total loss of coolant supply. The result was that the fuel rods rapidly melted and flowed together while in an extremely-high-power state, causing a small portion of the core to reach a state of runaway prompt criticality and leading to a massive energy release,[22] resulting in the explosion of the reactor core and the destruction of the reactor building. The massive energy release during the primary event superheated the graphite moderator, and the disruption of the reactor vessel and building allowed the superheated graphite to come into contact with atmospheric oxygen. As a result, the graphite moderator caught fire, sending a plume of highly radioactive fallout into the atmosphere and over a very widespread area.[
  • Mar 2019
    1. It’s clear that we need to make the switch to clean, reliable sources of renewable energy like solar and wind. Unlike fossil fuels, renewables don’t add greenhouse gases to our atmosphere.

      We need to change to renewable energy

    1. The local electricity linesmen, electricity inspectors, and other nodal officials in the electricity department also have key roles to play. Building their capacities to disseminate such information and handle consumer queries and concerns, and providing basic training in billing and metering for solar power can go a long way in improving consumers’ experience.

      Why will Discom want to disseminate the information when:

      1. They themselves don't understand how the system works
      2. They feel that rooftop solar will cut into their revenues? Here, instead of a top-down approach or bottom-up approach, RE generators and regulators need to have a 2 pronged synchronous approach to educate people about the technologies.
  • Feb 2019
    1. Amazon, Google, and Microsoft have all struck lucrative arrangements—collectively worth billions of dollars—to provide automation, cloud, and AI services to some of the world’s biggest oil companies, and they are actively pursuing more.


    1. Maximum Entropy Generators for Energy-Based Models

      【能量视角下的GAN模型】本文直接受启发于Bengio团队的新作《Maximum Entropy Generators for Energy-Based Models》,作者给出了GAN/WGAN的清晰直观的能量图像,讨论了判别器(能量函数)的训练情况和策略,指出了梯度惩罚一个非常漂亮而直观的能量解释。此外,本文还讨论了GAN中优化器的选择问题。http://t.cn/EcBIwqJ

  • Nov 2018
    1. Objective To determine the effects of diets varying in carbohydrate to fat ratio on total energy expenditure.Design Randomized trial.Setting Multicenter collaboration at US two sites, August 2014 to May 2017.Participants 164 adults aged 18-65 years with a body mass index of 25 or more.Interventions After 12% (within 2%) weight loss on a run-in diet, participants were randomly assigned to one of three test diets according to carbohydrate content (high, 60%, n=54; moderate, 40%, n=53; or low, 20%, n=57) for 20 weeks. Test diets were controlled for protein and were energy adjusted to maintain weight loss within 2 kg. To test for effect modification predicted by the carbohydrate-insulin model, the sample was divided into thirds of pre-weight loss insulin secretion (insulin concentration 30 minutes after oral glucose).Main outcome measures The primary outcome was total energy expenditure, measured with doubly labeled water, by intention-to-treat analysis. Per protocol analysis included participants who maintained target weight loss, potentially providing a more precise effect estimate. Secondary outcomes were resting energy expenditure, measures of physical activity, and levels of the metabolic hormones leptin and ghrelin.Results Total energy expenditure differed by diet in the intention-to-treat analysis (n=162, P=0.002), with a linear trend of 52 kcal/d (95% confidence interval 23 to 82) for every 10% decrease in the contribution of carbohydrate to total energy intake (1 kcal=4.18 kJ=0.00418 MJ). Change in total energy expenditure was 91 kcal/d (95% confidence interval −29 to 210) greater in participants assigned to the moderate carbohydrate diet and 209 kcal/d (91 to 326) greater in those assigned to the low carbohydrate diet compared with the high carbohydrate diet. In the per protocol analysis (n=120, P<0.001), the respective differences were 131 kcal/d (−6 to 267) and 278 kcal/d (144 to 411). Among participants in the highest third of pre-weight loss insulin secretion, the difference between the low and high carbohydrate diet was 308 kcal/d in the intention-to-treat analysis and 478 kcal/d in the per protocol analysis (P<0.004). Ghrelin was significantly lower in participants assigned to the low carbohydrate diet compared with those assigned to the high carbohydrate diet (both analyses). Leptin was also significantly lower in participants assigned to the low carbohydrate diet (per protocol).Conclusions Consistent with the carbohydrate-insulin model, lowering dietary carbohydrate increased energy expenditure during weight loss maintenance. This metabolic effect may improve the success of obesity treatment, especially among those with high insulin secretion
  • Oct 2018
    1. In contrast to his concept of a simple circular orbit with a fixed radius, orbitals are mathematically derived regions of space with different probabilities of having an electron.

      In this case, the QM model allows for probabilistic radii, not fixed radii, and the quantization is the energy level. An electron with principal quantum number n = 2 will always have quantized energy corresponding to \( E = R(1/n^2) \), but the exact minimal and maximal radial distance from the nucleus is not specified as in the Bohr model of the atom. Similar to the Bohr model though, the most probable radial distance is quantifiable, and that is the radius the electron is most likely to inhabit, however it will be found elsewhere at other times.

  • Aug 2018
    1. I learned a valuable lesson that the haters have all the energy in the world to share their outrage but the people you really want to reach respect you, your time, and what you’re doing and they are often too busy to take the time to express gratitude.
  • Jul 2018
  • May 2018
  • arxiv.org arxiv.org
    1. the ADM massmcan be computedusing the curvature ofgas follows1: Consider(1.3)mI(r) =1(n−1)(2−n)ωn−1∫Sr(Ric−12Rgg)(X, νg)dσg,where Ric andRgare the Ricci tensor and the scalar curvature ofgrespectively,Xis the Euclidean conformal Killing vector fieldxi∂∂xi,νgis the unit outward normal anddσgis the area element onSrwithrespect tog.
  • Apr 2018
    1. Sterlite Power, is India’s one of the leading power transmission company, uniquely positioned to solve the toughest challenges of energy delivery. We help to meet the industry’s need for capital by implementing projects on a BOOM (Build Own Operate Maintain) basis and being at the forefront of financial innovation via IndiGrid, India’s first power sector Infrastructure Investment Trust (InvIT).

  • Feb 2018
    1. Early inventories of emission sources show that electric power generation in India is mostly done using a polluting fossil fuel like coal and to some extent oil. Oil and petroleum products for transport are also mostly imported.

      This is interesting!

  • Dec 2017
    1. A study from Finland's Leppeenranta University of Technology and Berlin-based Energy Watch Group claims that the entire world could transition to 100% renewable electric power by 2050.

  • Nov 2017
  • Sep 2017
  • Jul 2017
    1. Commentary   Media Releases Feb. 25, 2014 OP-ED: More pieces to B.C.'s LNG puzzle than you think By Kevin Sauvé Feb. 25, 2014 OP-ED: Seeing the full picture on pipelines and the oilsands By Clare Demerse Feb. 24, 2014 BLOG: Calling all leaders in energy efficiency By Ed Whittingham Feb. 20, 2014 BLOG: Closing the downtown–suburban divide By Cherise Burda Feb. 20, 2014 BLOG: Piecing together B.C.’s LNG fiscal framework By Matt Horne

      Pembina has a highly-visible section for blog posts on its main page. Contributors are mainly directors and other staff members.

    1. Cuomo agreed to help keep the plants running with the aid of a multi-billion dollar bailout to be financed by monthly surcharges on the bills of ratepayers.

      I find this confusing. If the plants are running at a deficit can't the price be raised? If the "bailout" is financed by surcharges isn't that effectively the same as an increased energy cost for consumers except that there's now the government as an additional intermediary of that transfer of funds? The only thing I can imagine is that maybe energy costs are regulated?

  • May 2017