2026-07-12 17:56 UTC
Replies (19)
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@Doomstrike@metalhead.club 2026-07-12 19:06
@jblue@mastodon.world Plus, this was 2013 research...not sure where its at today
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@540@mastodon.nu 2026-07-12 22:58
@jblue@mastodon.world Nu börjar det bli intressant..💯😏👍
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@cassolotl@toot.wales 2026-07-12 18:28
@jblue@mastodon.world That's 13 years old. I wonder if anyone is actually doing it properly yet?
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@uncomfortable_plateau@sunny.garden 2026-07-12 18:29
@jblue@mastodon.world Very cool technology. Do we have to keep making skyscrapers?
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@Doomstrike@metalhead.club 2026-07-12 19:05
@jblue@mastodon.world Interesting research and tech, but I think 25% of a sky scraper's power doesn't yet sound that cost effective for a retrofit. What are major power consumers in a tower? Aircon, elevator motors, kitchens? Maybe I'm overlooking a lot, not being from somewhere with many (any?) such buildings. To my uneducated guess, a building like that with todays PV's, on that surface area would likely power the building and surrounding area, no? New building certainly a consideration, if buildings are necessary. I tend to live by Bergstrom's rules e.g: The "Too Good to Be True" Rule "If a result seems too good (or too bad) to be true, it probably is"
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@JoBlakely@mastodon.social 2026-07-12 21:16
@jblue@mastodon.world amazing. So many possibilities.
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@contrasocial@mastodon.social 2026-07-12 21:41
@jblue@mastodon.world China one month later: "Ohhh hey, yes we just figured out how to make these too coincidentally."
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@gcvsa@mstdn.plus 2026-07-12 23:32
@jblue@mastodon.world Have you actually examined how it works? It's not at all a "transparent solar panel". It's a pane of glass with photovoltaic cells installed around the edges. Scientific literacy MATTERS.
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@andy47@aus.social 2026-07-13 01:32
And next time I’ll check the link before re-posting. This is from 2013 and still not really a thing. Here’s hoping that the research is still progressing though. H/T @mekkaokereke@hachyderm.io for the pointer.
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@Iveyline@mastodon.nz 2026-07-13 05:15
@jblue@mastodon.world Smart idea.
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@cdarwin@c.im 2026-07-13 00:13
@The_Sun@solarcene.community @raptor85@mastodon.gamedev.place @jblue@mastodon.world @cassolotl@toot.wales You can use ClearVue solar vision glass, spandrel, cladding, skylights and balustrade to extend solar energy generation across the entire building façade. With a broad range of colors and textures available, nearly any architectural intent is achievable. https://www.clearvuepv.com/gallery/
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@dalias@hachyderm.io 2026-07-13 00:42
@Sea1Am@mastodon.social @jblue@mastodon.world Not useful, at least with the way cars are built now. Even at 100% efficiency, you can get at most about 2 HP per square meter of sunlight. There's simply not enough surface area. A highly optimized e-velomobile however....
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@dalias@hachyderm.io 2026-07-13 01:07
@Sea1Am@mastodon.social @jblue@mastodon.world If you just want the solar to charge a large battery rather than powering it directly with only minimal buffering in a battery, you're stuck with the mass of a large battery, and might as well just use plug-in charging from stationary solar - less mass to move, less expensive equipment at risk of damage on road. Having "free" emergency power if stranded to keep AC, communications, etc. running could have some value I guess.
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@dalias@hachyderm.io 2026-07-13 05:36
@ShadSterling@mastodon.social @Sea1Am@mastodon.social @jblue@mastodon.world Yeah, you could probably do that entirely passively though, with radiative sky cooling. But it might be hard to get the dehumidifying aspect.
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@dalias@hachyderm.io 2026-07-13 17:04
@ShadSterling@mastodon.social @Sea1Am@mastodon.social @jblue@mastodon.world Well I think you'd want the sunlight not to be reaching the upholstery at all. For a stationary/non-driving situation keeping cool, you'd cover all the windows. In motion, you'd need to be balancing aerodynamics and visibility with avoiding getting light into the cabin.
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@dalias@hachyderm.io 2026-07-13 18:22
@ShadSterling@mastodon.social @Sea1Am@mastodon.social @jblue@mastodon.world You weren't radiating heat faster than you were absorbing it from the sun and the air. You need a very specialized coating to do that, one which absorbs/radiates (black body radiation) in the bands that will pass through the atmosphere and get you a net cooling.
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@dalias@hachyderm.io 2026-07-14 00:05
@ShadSterling@mastodon.social @Sea1Am@mastodon.social @jblue@mastodon.world Fans won't get you below outside ambient temperature or even down to it. Radiant sky cooling will. So will AC, but I'm doubtful you could get enough wattage from solar in the available surface area to make it work. If so, it'd be perfect.
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@dalias@hachyderm.io 2026-07-15 22:24
@ShadSterling@mastodon.social @Sea1Am@mastodon.social @jblue@mastodon.world In principle it costs no more than the existing paint job costs. I don't think you're going to get cabin down from 38 °C to 29 °C or less with fans circulating 24 °C air from outside. I know my car's fan can't do that with the AC off. Maybe with an active exhaust fan in addition to the intake you could move enough to make it happen tho. But overcoming solar heating with fans is hard. You need the wattage to move large volumes of air faster than new heat enters the system.
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@dalias@hachyderm.io 2026-07-18 00:44
@ShadSterling@mastodon.social @Sea1Am@mastodon.social @jblue@mastodon.world Not from the cost of a specialty product marketed to consumers but from the actual materials cost to manufacture it at scale, which is basically zero. Passive venting is unlikely to get you significantly lower than just leaving windows cracked already does. Active venting with both intake and exhaust fans powered off of solar might do a decent job. But nothing short of RSC or a heat pump of some sort will get you down to even near much less below ambient outside air temperature.