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derk Visser
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derk Visser

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Climate weirding all over #climate change, smoke, wildfires
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Ten times more efficient H2 generator!
Researchers have developed a very promising prototype of a new solar celll. The material gallium phosphide enables their solar cell to produce the clean fuel hydrogen gas from liquid water. Processing the gallium phosphide in the form of very small nanowires is novel and helps to boost the yield by a factor of ten. And does so using ten thousand times less precious material.
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As I Stare at My Smoke-Clouded Sky, a Thought or Two About Tipping Points
Arctic sea ice is vanishing and quite rapidly to boot. The ice cover that once reflected solar radiation, heat, back into space has walked off the job. No brilliant white ice means dark green ocean that is a heat sink. That warming Arctic ocean warms the ...
Arctic sea ice is vanishing and quite rapidly to boot. The ice cover that once reflected solar radiation, heat, back into space has walked off the job. No brilliant white ice means dark green ocean that is a heat sink. That w...
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Evolving Tesla Electric Drivetrains
Electric drivetrains are much simpler, much lighter and much less costly than internal combustion drivetrains of similar power. Tesla's drive units consist of just an inverter, induction motor and single-speed reduction gearbox with differential. The Model ...
Electric drivetrains are much simpler, much lighter and much less costly than internal combustion drivetrains of similar power. Tesla's drive units consist of just an inverter, induction motor and single-speed reduction gearb...
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derk Visser

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Real glad with new photo homepage, am in the process of uploading more memorable Gestel paintings that i took in Holland, at the Singer museum, they allow photography!
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very promising developments with activated, super heated carbon nano materials for batteries!
 
Lithium-ion technology is still the gold standard for energy storage as demonstrated by the popularity of the new Powerwall battery, Tesla Energy's much-publicized foray into Li-ion energy storage for homes and businesses. However, some new technologies are sneaking up behind. In the latest development, lithium-sulfur batteries could benefit from a new
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Highest efficiency in solar electric power generation with advanced Stirling!
Independent tests by IT Power in the UK confirm that a single Ripasso dish can generate 75 to 85 megawatt hours of electricity a year - enough to power 24 typical UK homes. To make the same amount of electricity by burning coal would mean releasing roughly ...
Independent tests by IT Power in the UK confirm that a single Ripasso dish can generate 75 to 85 megawatt hours of electricity a year - enough to power 24 typical UK homes. To make the same amount of electricity by burning co...
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derk Visser

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Happy days enjoy the flowers
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Staying cool naturally on a hot day with the stack effect ventilation 
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34degrees C outside, but the basement is a steady 22C, with a window open on the shady side, to provide whole house cooling, it exits via ceiling hatch up and out the ridge vent, stack effect at work!
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Perovskites, as reported by http://cleantechnica.com/2015/07/03/perovskites-will-power-new-low-cost-highly-efficient-solar-cells/,
 may also play a role in next-generation electric vehicle batteries, according to some interesting maneuvers recently undertaken by Volkswagen.
Since we're celebrating Independence Day this weekend over here in the USA, we're sharing this fireworksy image of perovskite crystals emailed to us by the folks at Los Alamos National Laboratory. Better known for its work on nukes, the lab has been hot on the trail of next-generation, super-efficient solar cells, and it looks like
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Useful chart comparing bang for the buck of various battery technologies
The other day, some other curious people and I ran numbers comparing the per-kWh price of the Tesla Powerwall & Powerpacks (the utility-scale battery options described on the bottom of this page) with top competitors on the market. Admittedly, that was too ...
The other day, some other curious people and I ran numbers comparing the per-kWh price of the Tesla Powerwall & Powerpacks (the utility-scale battery options described on the bottom of this page) with top competitors on the m...
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The End Of The Lithium-Ion Era?
Lithium-ion technology is still the gold standard for energy storage as demonstrated by the popularity of the new Powerwall battery, Tesla Energy’s much-publicized foray into Li-ion energy storage for homes and businesses. However, some new technologies are...
Lithium-ion technology is still the gold standard for energy storage as demonstrated by the popularity of the new Powerwall battery, Tesla Energy’s much-publicized foray into Li-ion energy storage for homes and businesses. Ho...
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