3 ms·
Even if she has 10 times as many (well possible if compared, say, to the 1960s), they aren't likely switched on most of the time. People generally don't like i
by inglor_cz 2y ago
Even if she has 10 times as many (well possible if compared, say, to the 1960s), they aren't likely switched on most of the time.
People generally don't like if it is "too bright" in the room, and the extra lights in closets, pantries etc. will only be used marginally, for a few minutes a day.
It helps that LED lifetime isn't degraded by frequent on-and-off cycling.
- aurareturn 2y agoSo what are we measuring here with Jevons Paradox? Light bulb sales? Total lumen output? Total lighting revenue?
- inglor_cz 2y agoMaybe installed capacity in lumens.
- aurareturn 2y agoI can’t find the numbers you’re looking for. I did find that the total consumption of light increased 100,000x between 1700s and 2000 in Uk. Chart: The consumption of light in the United Kingdom increased over 100,000 fold between 1700 and 2000. https://onclimatechangepolicydotorg.wordpress.com/low-carbon-technologies-section-overview/long-term-trends-in-lighting-efficiency-and-consumption/ https://onclimatechangepolicydotorg.wordpress.com/low-carbon... Also keep in mind that better lighting efficiency enables people in poor countries to have lights where they couldn’t before. It’s not just wealthy counties. You have to count them as well. It's not just counting a rich person's house before and after LEDs.
- inglor_cz 2y agoAbsolutely, yes. Many more people can now afford light. My grandma (born 1926, died 2016) was born in Eastern Slovakia in the pre-electric era, the region she lived in only got connected to the grid in 1945. In her youth, the whole family would simply have one kerosene lamp and gather around it after dark.
- rendang 2y agoBetter to measure electricity usage in either $$ or kwh.
- aurareturn 2y agoLike this? https://www.researchgate.net/publication/342626956/figure/fig1/AS:908829554393090@1593693259899/Historical-global-electricity-consumption-18-Historical-global-electricity-consumption.png https://www.researchgate.net/publication/342626956/figure/fi...