User contributions for Elie

20:1220:12, 30 December 2022 diff hist +2,302‎ N Electric vehicles/Fossil fuel powered ‎ Created page with "If electric vehicles are powered with electricity that was generated by fossil fuels, is it worse for the environment than just driving a gas car? {{dp |<nowiki>electric_car.efficiency</nowiki> |<nowiki>100 miles per 34.6 kWh</nowiki> |<nowiki>The "gas mileage" equivalent for an average electric car.</nowiki> |<nowiki>Average Electric Car kWh Per Mile [Results From 231 EVs]</nowiki><br /><nowiki> ecocostsavings.com › average-electric-car-kwh-per-mile </nowiki>..."

10:2910:29, 28 December 2022 diff hist +1,788‎ Solar panel minerals ‎ →‎General estimates
02:3202:32, 28 December 2022 diff hist +569‎ N Heat pump ‎ Created page with "An electric heat pump is one way to heat a building. It works a lot like air conditioning but in reverse: The hot air goes indoors; the cold air goes outdoors. Heat pumps are '''more energy-efficient''' than electric heaters.{{qn}} ==Research needed for this page== * ''How much'' more energy-efficient can a heat pump be? ** How does this depend on outdoor temperature? * How much energy does it typically take to ''manufacture and install'' a heat pump? *..."
02:3002:30, 28 December 2022 diff hist 0‎ Template:Qn ‎No edit summary
02:2902:29, 28 December 2022 diff hist 0‎ Template:Rn ‎No edit summary
02:0402:04, 28 December 2022 diff hist +75‎ Rooftop solar ‎ →‎Challanges
01:4301:43, 28 December 2022 diff hist +8,624‎ N Rooftop solar ‎ Created page with "Rooftops are a good place to put solar panels, because: * They are close to where the energy is typically used. * They need no extra land (unlike solar farms). That's an environmental footprint avoided. '''Summary:''' * In most cases, rooftop solar ''could'' provide enough energy for '''homes''', other '''buildings''', and '''charging''' electric vehicles. ** Exception: heating in cold parts of the world ** Exception: high-density cities * '''Ha..."

23:3123:31, 27 December 2022 diff hist +1,208‎ N Solar panel minerals ‎ Created page with "It takes minerals to make solar panels. Some minerals are scarce. This might be an issue if we want to scale up green energy enough to replace fossil fuels. What we need is a full chart of all minerals (and their quantities) involved in all solar panel technologies. Apparently this doesn't exist on the internet already, so we have to make it ourselves. The tables below are currently a work-in-progress. The 3rd column of the tables below is based on a sc..."
22:5122:51, 27 December 2022 diff hist +70‎ N Template:Rn ‎ Created page with "<sup><nowiki>[</nowiki>research needed<nowiki>]</nowiki></sup>"
22:2122:21, 27 December 2022 diff hist +1,217‎ Minerals ‎No edit summary current

07:3407:34, 24 December 2022 diff hist 0‎ Calc:If all vehicles were electric ‎ →‎Powering the vehicles
07:3307:33, 24 December 2022 diff hist +5,176‎ Calc:If all vehicles were electric ‎No edit summary
06:4006:40, 24 December 2022 diff hist +5,327‎ N Calc:If all vehicles were electric ‎ Created page with "Suppose we keep the status quo of transportation, but make all vehicles electric. This raises some basic questions: * How much electricity would we need to power all the vehicles? * How much energy would it take to manufacture vehicles - both in the short term and long term? * Which critical minerals would we need, and how much of each? * Could the minerals be recycled from vehicles at their end-of-life? ==Powering the vehicles== Electric cars are..."

13:3213:32, 22 December 2022 diff hist 0‎ Housing/electricity ‎ Corrected the footnotes (which were wrong in the original source too btw) current