User contributions for Elie

30 May 2022

• 21:2821:28, 30 May 2022 diff hist +2,043‎ File:energy-usage-by-source.png ‎ →‎Summary
• 21:2521:25, 30 May 2022 diff hist +54‎ N Template:Q ‎ Created page with "<span class='ppv2'><nowiki>[?]</nowiki>|{{{1}}}</span>"
• 20:1420:14, 30 May 2022 diff hist +296‎ N File:energy-usage-by-source.png ‎ Top bar: Energy used to generate electricity {{p2|mostly|We say this for simplicity sake. Technically, 22% of it is other things (losses, the energy industry's own use, etc). }}. Bottom bar: Total final consumption (TFC) Total energy supply (TES): top bar + bottom bar - electricity

29 May 2022

• 01:3401:34, 29 May 2022 diff hist 0‎ N Talk:Walkability ‎ Created blank page current
• 01:3401:34, 29 May 2022 diff hist 0‎ N Talk:Primitivism ‎ Created blank page current
• 01:3301:33, 29 May 2022 diff hist 0‎ N Talk:Main Page ‎ Created blank page current
• 01:3201:32, 29 May 2022 diff hist 0‎ N Talk:Housing supply analysis ‎ Created blank page current
• 01:3201:32, 29 May 2022 diff hist 0‎ N Talk:Food waste ‎ Created blank page current
• 01:3101:31, 29 May 2022 diff hist 0‎ N Talk:Food ‎ Created blank page current
• 01:2901:29, 29 May 2022 diff hist 0‎ N Talk:Crop yields ‎ Created blank page
• 01:2801:28, 29 May 2022 diff hist 0‎ N Talk:Energy demand scenarios ‎ Created blank page current
• 01:2701:27, 29 May 2022 diff hist +9‎ Energy demand scenarios ‎ →‎Status quo
• 01:2101:21, 29 May 2022 diff hist +7‎ Energy demand scenarios ‎ →‎Methodology - general
• 01:2101:21, 29 May 2022 diff hist +277‎ Energy demand scenarios ‎No edit summary
• 00:4300:43, 29 May 2022 diff hist +484‎ N Walkability ‎ Created page with "# Transportation is a major contributor to climate change. # Electric vehicles may not a Term:viable solution soon enough. # In many parts of the world, neighborhoods are designed in a way that forces us to drive a lot. But there is good news: '''We can fix this.''' ==Small tweaks, big changes== ... ==New construction== The energy potentially saved by building brand new walkable neighborhoods, has to be weighed against the energy it takes to construct them."
• 00:4200:42, 29 May 2022 diff hist +392‎ Talk:Minimal consumption scenario ‎No edit summary current
• 00:2400:24, 29 May 2022 diff hist +24‎ Minimal consumption scenario ‎No edit summary current
• 00:0800:08, 29 May 2022 diff hist +14‎ Energy demand scenarios ‎No edit summary
• 00:0400:04, 29 May 2022 diff hist +311‎ Energy demand scenarios ‎No edit summary

28 May 2022

• 23:5023:50, 28 May 2022 diff hist +53‎ Energy demand scenarios ‎No edit summary
• 23:4723:47, 28 May 2022 diff hist +2,916‎ Energy demand scenarios ‎No edit summary
• 22:1922:19, 28 May 2022 diff hist +3,832‎ Energy demand scenarios ‎No edit summary

27 May 2022

• 03:4403:44, 27 May 2022 diff hist +2,051‎ N Energy demand scenarios ‎ Created page with "If we want a better world, we have to get a sense of how much energy it would take. First we look at the status quo, then we envision some hypothetical scenarios. File:energy-demand-status-quo.png File:energy-demand-developed.png ==Methodologies== First we define the scale (X axis) (same for every bar graph): : 1 pixel = 24 Mtoe/year {{dp |px |24 Mtoe/year |The X axis scale for the bar graphs |1 pixel = 24 Mtoe/year }} ===Status quo=== Using data from I..."

25 May 2022

• 04:3004:30, 25 May 2022 diff hist +157‎ Talk:Surplus electricity ‎ →‎Amounts current
• 04:1804:18, 25 May 2022 diff hist +330‎ N Talk:Surplus electricity ‎ Created page with "==Amounts== It would be good to quantify surplus electricity. Some salient stats: hydro power stations only use 36% of their capacity on average. {{ecalc|hydropower.consumption|% hydropower.capacity}} Might be useful to generate an Term:isochromic world map of all surplus electricity, superimposed with population."
• 04:1604:16, 25 May 2022 diff hist +1,117‎ N Surplus electricity ‎ Created page with "At every moment in time, electricity generation has to be carefully balanced against electricity consumption. Renewables can sometimes generate too much electricity that has nowhere to go. File:electricity-supply-demand-curves.png ==Sources== ===Solar=== If rooftop solar panels were commonplace, there would be surplus electricity during the day. ===Wind=== In some cases, there is surplus electricity during peak winds. ===Hydro=== Even though hydropower capacity..." current
• 03:3203:32, 25 May 2022 diff hist +1,377‎ N Hydrogen gas ‎ Created page with "Hydrogen gas (H2) is a fuel that when burned, produces no pollution and no carbon emissions - only water vapor (H2O). Just one problem: There are '''no''' natural resources of hydrogen gas. To make hydrogen gas, you need to use some other energy source. ==Production== ===Electrolysis=== Electricity can turn water (H2O) into hydrogen gas (H2) and oxygen gas (O2). The electricity could come from renewable sources such as solar, wind, or..."
• 03:1803:18, 25 May 2022 diff hist +800‎ N Talk:Hydrogen gas ‎ Created page with "==Green hydrogen from fossil fuels?== Is it thermodynamically possible to ''extract'' the hydrogen from fossil fuel molecules while leaving behind solid carbon (not oxidized to CO2)? Example chemical formula: CH4 -> 2 H2 + C<br /> Of course this is only worthwhile if it takes less energy than you would get from burning the H2 later. If it is viable, maybe we could get all our energy from fossil fuels and just "burn the hydrogen, not the carbon"? I have read about so-c..."
• 00:4200:42, 25 May 2022 diff hist +201‎ N Talk:Energy storage ‎ Created page with "==Format== Should it have a table of 'storage type' and 'limitations', kinda like the energy page ("limits to energy sources")? ~~~~" current

24 May 2022

• 23:3323:33, 24 May 2022 diff hist +358‎ N Energy storage ‎ Created page with "In the pursuit of green energy, storage is needed for 2 reasons: # To smooth out the intermittency of solar and wind power. # To store energy in electric vehicles without gasoline or diesel. ==Types== ===Lithium-ion batteries=== ===Iron-redox flow batteries=== ===Flywheels=== ===Compressed air=== ===Gravity blocks==="
• 22:5922:59, 24 May 2022 diff hist −2‎ Talk:Minimal consumption scenario ‎ →‎Emphasis on globalness
• 22:5522:55, 24 May 2022 diff hist −3‎ Talk:Minimal consumption scenario ‎ →‎Emphasis on globalness
• 22:5422:54, 24 May 2022 diff hist +733‎ N Talk:Minimal consumption scenario ‎ Created page with "==Is the intro too long?== Do we really need the first part before 'the scenario'? I get a feeling it might be better on a different page. ~~~~ ==Emphasis on globalness== This isn't just about "how can westerners reduce their consumption", it's also about "how can other countries develop more sustainably". So for the analysis, we want to estimate the resources that would be needed if this scenario were to happen ''globally''. Compare it to the global status quo (extrem..."
• 22:3322:33, 24 May 2022 diff hist +8‎ Energy ‎ →‎Energy demand
• 22:1922:19, 24 May 2022 diff hist +19‎ Energy ‎ →‎Can this demand (or at least, most of it) be met without fossil fuels?
• 22:1622:16, 24 May 2022 diff hist +328‎ Energy ‎ →‎Energy demand
• 22:0522:05, 24 May 2022 diff hist +2,269‎ N Minimal consumption scenario ‎ Created page with "This is a thought-experiment to look at the minimum amount of resources needed to sustain modern first-world-ish lives (or healthier). Some basic requirements include: * Enough food and nutrition {{x|this means there should be enough calories, protein, fibre, vitamins and minerals - it should be enough to sustain an active lifestyle, not just a sedentary one}} * Enough housing {{x|that everyone could ''at least'' have their own room}} {{x|housing with utilities i..."
• 19:4819:48, 24 May 2022 diff hist +40‎ Primitivism ‎No edit summary current
• 19:3719:37, 24 May 2022 diff hist +37‎ Primitivism ‎No edit summary
• 19:3519:35, 24 May 2022 diff hist 0‎ MediaWiki:Common.css ‎No edit summary
• 19:3219:32, 24 May 2022 diff hist 0‎ MediaWiki:Common.css ‎No edit summary
• 19:2919:29, 24 May 2022 diff hist +17‎ Template:Ap ‎No edit summary
• 19:2919:29, 24 May 2022 diff hist +1,050‎ N Primitivism ‎ Created page with "The idea that we can return to hunter-gatherer societies (or abandon technology in general), is probably '''not''' sustainable, not green, and not viable for our global population of nearly 8 billion people. Here's some evidence why: # Hunter-gatherer societies existed when the global population was less than 1/10th of what it is today. # Agriculture was invented because it was more productive (per unit of land) than hunting/gathering. # Today, hunting & fishing restrict..."

22 May 2022

• 04:0604:06, 22 May 2022 diff hist +75‎ Talk:Energy inequality ‎ →‎Map of energy consumption per capita current
• 04:0304:03, 22 May 2022 diff hist +841‎ N Talk:Energy inequality ‎ Created page with "==Map of energy consumption per capita== It's misleading for 2 reasons: # Industrial sector: does not necessarily reflect the lifestyles of the citizens. For example the vast majority of Chinese factories serve the consumption-habits of people in other countries. # Heating: Even if the global south was as developed as the USA or Europe, they still wouldn't use quite as much energy because they don't need heating. A more honest consumption metric would be: residential +..."
• 03:5203:52, 22 May 2022 diff hist +34‎ N Energy inequality ‎ Created page with "File:map-energy-population.png" current
• 03:5003:50, 22 May 2022 diff hist 0‎ N File:map-energy-population.png ‎No edit summary

21 May 2022

• 21:2421:24, 21 May 2022 diff hist +638‎ Energy ‎No edit summary
• 21:0921:09, 21 May 2022 diff hist +61‎ Talk:Energy ‎ →‎Limitations table current
• 21:0221:02, 21 May 2022 diff hist +439‎ N Talk:Energy ‎ Created page with "==Limitations table== An additional thing to maybe add to 'biofuel' is 'requires more energy to grow the crops than you actually get out of them'. But we would need data to see whether this is true or not. I wanna say for solar "panel manufacturing is too resource-intensive" but that leaves ppl asking about concentrated solar (which also requires too many materials) ~~~~"