Archive for the tag: Problem

Work, Power, and Efficiency: Sample Physics Problem

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This video demonstrates work, power, and efficiency calculations for a sample physics problem. Visit https://sites.google.com/site/dcaulfssciencelessons/ for more!
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DamNation | The Problem with Hydropower

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DamNation | The Problem with Hydropower

This film explores the evolution of our national attitude from pride in big dams as engineering wonders to the growing awareness that our own future is bound to the life and health of wild rivers.
Produced by Matt Stoecker & Travis Rummel
Directed by Ben Knight & Travis Rummel

Finland Might Have Solved Nuclear Power’s Biggest Problem

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Finland is building the largest and most powerful nuclear reactor in Europe – and may have worked out what to do with spent nuclear fuel once and for all. Discover how to build in 2030 with Bluebeam – https://bit.ly/3v8uTER

Full story here – https://www.theb1m.com/video/finland-might-have-solved-nuclear-power-s-biggest-problem

This video contains paid promotion for Bluebeam. Discover how to build in 2030 – https://bit.ly/3v8uTER

Executive Producer and Narrator – Fred Mills
Producer – Dan Cortese
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Production Management – Clare Furlonger
Content Partnership – Liam Marsh

Special thanks to TVO and Posiva. Additional footage and images courtesy of Tapani Karjanlahti, OpenStreetMap, Tommibe, Teemu Vaisanen and Kallerna.

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This could be the most important construction project of our lifetimes. See how digital tools are enabling the ITER project – https://bit.ly/3KGfiF8

Full story here – https://theb1m.com/video/inside-iter-worlds-largest-nuclear-fusion-reactor

This video contains paid promotion for Thinkproject. See how ITER’s teams are using Thinkproject’s tools to stay on track – https://bit.ly/3KGfiF8

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Producer – Jaden Urbi
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Executive Producers – Fred Mills, James Durkin and Graham MacAree

Special thanks to ITER. Additional footage and images courtesy of ITER, WGBH and Reagan Library.

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The Problem with Solar Energy in Africa

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The Problem with Solar Energy in Africa

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Sound: Graham Haerther (https://haerther.net/)
Thumbnail: Simon Buckmaster https://twitter.com/forgottentowel

References:
References
[1] https://globalsolaratlas.info/map?c=42.779275,-37.617188,4
[2] https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Electricity_production,_consumption_and_market_overview
[3] https://www.statista.com/statistics/280704/world-power-consumption/
[4] https://energypost.eu/10000-sq-km-of-solar-in-the-sahara-could-provide-all-the-worlds-energy-needs/
[5] https://www.pv-magazine.com/2019/02/20/spains-third-interconnection-with-morocco-could-be-europes-chance-for-african-pv-or-a-boost-for-coal/
[6] http://climatepolicyinitiative.org/wp-content/uploads/2011/12/Hirschhausen-et-al_The-Economics-of-DESERTEC.pdf
[7] https://www.eia.gov/analysis/studies/electricity/hvdctransmission/pdf/transmission.pdf
[8] https://www.brown.edu/Departments/Engineering/Courses/ENGN1931F/HVDC_Proven_TechnologySiemens.pdf
[9] https://iea-etsap.org/E-TechDS/PDF/E12_el-t&d_KV_Apr2014_GSOK.pdf
[10]
https://www.researchgate.net/publication/350846283_Impact_study_of_NOOR_1_project_on_the_Moroccan_territorial_economic_development
[11] https://www.reutersevents.com/renewables/csp-today/technology/towers-versus-troughs#:~:text=LPT%20550’s%20solar%2Dto%2Dsteam,steam%2C%20according%20to%20the%20company.&text=Storage%20is%20another%20key%20advantage%20of%20the%20tower%20technology
[12] https://techstartups.com/2020/11/19/worlds-biggest-solar-energy-project-failure-1-billion-boondoggle-solar-plant-project-became-obsolete-ever-went-online/
[13] https://www.reviewjournal.com/opinion/editorials/editorial-future-of-crescent-dunes-solar-plant-near-tonopah-appears-bleak-1866768/
[14] https://www.bloomberg.com/news/articles/2020-01-06/a-1-billion-solar-plant-was-obsolete-before-it-ever-went-online
[15] https://www.ise.fraunhofer.de/content/dam/ise/en/documents/News/electricity_production_germany_2020.pdf
[16] https://www.afdb.org/fileadmin/uploads/afdb/Documents/Environmental-and-Social-Assessments/Morocco_-_Ouarzazate_Solar_Power_Station_Project_II_-_ESIA_Summary.pdf

Select imagery/video supplied by Getty Images
Thank you to AP Archive for access to their archival footage.

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When you imagine the energy of the future, solar power is probably in the picture – but in recent years, less than 2% of the world’s electricity has come from solar power. Here are 5 new inventions that are likely to change that.

Hosted by: Hank Green

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Sources:
https://www.eia.gov/tools/faqs/faq.php?id=427&t=3
https://www.nature.com/articles/s41893-019-0364-5.epdf?author_access_token=RduqgDWgyu90mvu-RB6DW9RgN0jAjWel9jnR3ZoTv0O97Lc9kleZWba0tQ-k-7tIlZGbnB6ZL4SOzl8a4rPD9IuBrjAeWq–cJR60bfbCroy01kiCE8CKI6Of6hGsKYrJ74WecY0rcX7lhteq3zLcw%3D%3D
https://www.nature.com/articles/s41598-019-47803-3
https://grist.org/food/cash-strapped-farms-are-growing-a-new-crop-solar-panels/
https://sustainabilitycommunity.springernature.com/users/311875-helene-marrou/posts/53868-agrivoltaics-a-win-win-system-to-combine-food-and-energy-production
https://earthobservatory.nasa.gov/features/LAI/LAI2.php
https://www.nature.com/articles/s41893-019-0364-5.epdf?author_access_token=RduqgDWgyu90mvu-RB6DW9RgN0jAjWel9jnR3ZoTv0O97Lc9kleZWba0tQ-k-7tIlZGbnB6ZL4SOzl8a4rPD9IuBrjAeWq–cJR60bfbCroy01kiCE8CKI6Of6hGsKYrJ74WecY0rcX7lhteq3zLcw%3D%3D
https://www.researchgate.net/publication/326675843_Floatovoltaics_Towards_improved_energy_efficiency_land_and_water_management
https://www.ijitee.org/wp-content/uploads/papers/v8i12/L24971081219.pdf
https://pubs.acs.org/doi/full/10.1021/acs.est.8b04735
https://www.teachengineering.org/content/cub_/lessons/cub_pveff/Attachments/cub_pveff_lesson01_fundamentalsarticle_v2_tedl_dwc.pdf
https://www.sciencedirect.com/science/article/pii/S2352484719304780#b2
https://www.sciencedirect.com/science/article/pii/S2352484719304780#b49
https://onlinelibrary.wiley.com/doi/full/10.1002/ese3.92

A record year for trackers


https://news.energysage.com/solar-trackers-everything-need-know/
https://www.sciencedirect.com/topics/materials-science/organic-solar-cells
https://www.sciencedirect.com/topics/materials-science/organic-solar-cells
https://news.energysage.com/organic-solar-cells-what-you-need-to-know/
https://www.pnas.org/content/116/1/7#ref-2
https://www.pnas.org/content/116/1/7#ref-2
https://www.popsci.com/turn-your-smartphone-into-solar-panel/
https://www.nrel.gov/pv/organic-photovoltaic-solar-cells.html
https://www.energy.gov/eere/solar/crystalline-silicon-photovoltaics-research
https://www.tesla.com/solarroof
https://www.tesla.com/support/energy/solar-roof/learn/overview
https://news.energysage.com/thin-film-solar-panels-make-sense/
https://arrow.tudublin.ie/cgi/viewcontent.cgi?article=1062&context=dubenart
https://www.researchgate.net/publication/336994638_WEARABLE_AND_WASHABLE_PHOTOVOLTAIC_FABRICS
https://www.ntu.ac.uk/about-us/news/news-articles/2018/12/bright-idea!-clothes-embedded-with-solar-cells-to-charge-your-mobile-phone
https://www.wired.com/2014/05/charge-your-phone-with-this-high-fashion-solar-powered-dress/
https://tatacenter.mit.edu/portfolio/solar-thermal-fuels/
https://www.forbes.com/sites/trevornace/2018/11/06/scientists-reveal-strange-molecule-that-can-store-suns-energy-for-18-years/#75e3fe983483
https://pubs.rsc.org/en/content/articlehtml/2018/ee/c8ee01011k
http://www.mynewsdesk.com/uk/chalmers/pressreleases/emissions-free-energy-system-saves-heat-from-the-summer-sun-for-winter-2731597

Image Sources:
https://commons.wikimedia.org/wiki/File:Dornbirn-Montfortstrasse_19-Gardening-Photovoltaik-01ASD.jpg
https://commons.wikimedia.org/wiki/File:Solar_Sharing_Power_Plant_in_Tsukuba,_Ibaraki_03.jpg
https://commons.wikimedia.org/wiki/File:Solar_Sharing_Power_Plant_in_Kamisu,_Ibaraki_03.jpg
https://commons.wikimedia.org/wiki/File:Solar_Sharing_Power_Plant_in_Kamisu,_Ibaraki_02.jpg
https://commons.wikimedia.org/wiki/File:Farniente2.jpg
https://commons.wikimedia.org/wiki/File:8MW_horizontal_single_axis_tracker_in_Greece.JPG
https://commons.wikimedia.org/wiki/File:Suntactics_solar_tracker.jpg
https://onlinelibrary.wiley.com/doi/full/10.1002/pip.3229
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How Tesla’s Battery Mastermind Is Tackling EV's Biggest Problem

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Lithium-ion batteries are everywhere — in phones, laptops, tablets, cameras and increasingly cars. Demand for lithium-ion batteries has risen sharply in the past five years and is expected to grow from a .2 billion market in 2020 to a .4 billion market by 2025, mostly due to the boom in electric cars. And a shortage of lithium-ion batteries is looming in the U.S.

Former Tesla CTO and Elon Musk’s right-hand man, JB Straubel, started Redwood Materials in 2017 to help address the need for more raw materials and to solve the problem of e-waste. The company recycles end-of-life batteries and then supplies battery makers and auto companies with materials in short supply as EV production surges around the world. Straubel gave CNBC an inside look at its first recycling facility in Carson City, Nevada. Watch the video to learn why battery recycling will be an essential part in making EV production more sustainable.

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How Tesla’s Battery Mastermind Is Tackling EVs Biggest Problem
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How Singapore fixed its big trash problem | CNBC Reports

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More than 2 billion tonnes of global waste is generated yearly. By 2050, it’s expected to increase to 3.4 billion tonnes. CNBC’s Nessa Anwar traces the journey of a piece of discarded trash in Singapore to the nation’s only landfill, exploring solutions and the future of the world’s garbage dilemma.

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The Problem With Renewable Energy (and how we're fixing it)

Energy Efficiency No Comments »

( This isn’t a sponsored video, but I am massively grateful to all the team at SSE! Go look: http://sse.com/whatwedo/ourprojectsandassets/ , and pull down the description for more. )
As the world switches to renewable energy – and we are switching – there’s a problem you might not expect: balancing the grid. Rotational mass and system inertia are the things that keep your lights from flickering: and they only appear in big, old, traditional power stations. Here’s why that’s a problem, and how we’re likely going to fix it.

CORRECTION: I say that turbines spin thousands of times “per second” when it should be “per minute”. Apologies. You can find all corrections on this channel at https://www.tomscott.com/corrections/

Thanks to all the team at SSE! FULL DISCLOSURE: This is not a sponsored video, no money has changed hands, and SSE did not have editorial control. But they did go out of their way to arrange access and support for me and my team, including giving us safety training for working at heights. I am incredibly grateful to all the team: Paul and Ed for arranging it all; Bob and Scott who helped us at the turbine; and Calum, Head of Operations, who was keeping an eye on safety throughout.

GO LOOK AT SSE: http://sse.com/whatwedo/ourprojectsandassets/
http://sse.com/whatwedo/wholesale/
http://sse.com/griffin

The drone footage is from Cyberhawk, http://www.thecyberhawk.com: they normally do turbine inspections and land surveying, so I’d like to thank them for getting some artistic shots for us too!

And finally, my camera operator was Paul Curry, @cr3, who’s written a more experiential post with photos for Buzzfeed: https://www.buzzfeed.com/paulcurry/we-are-both-big-fans-of-electricity

I’m at http://tomscott.com
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and on Instagram and Snapchat as tomscottgo
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California's Renewable Energy Problem

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Sound: Graham Haerther (https://haerther.net/)
Thumbnail: Simon Buckmaster https://twitter.com/forgottentowel

References:

References:
[1] https://endcoal.org/wp-content/uploads/2019/03/BoomAndBust_2019_r6.pdf
[2]
https://www.energy.ca.gov/renewables/tracking_progress/documents/renewable.pdf (verified with own calculation)
[3]https://web.archive.org/web/20040702092945/https://www.duke-energy.com/news/releases/2000/Nov/2000111601.html
[4]https://pv-magazine-usa.com/2018/11/08/california-regulators-approve-the-worlds-largest-battery-projects/
[5] https://www.ge.com/power/transform/article.transform.articles.2018.oct.storage-threat-to-peaker-plants
https://www.greentechmedia.com/articles/read/just-how-much-business-can-batteries-take-from-gas-peakers#gs.bn4i7x
[6] http://www.caiso.com/TodaysOutlook/Pages/default.aspx
[7] https://reneweconomy.com.au/revealed-true-cost-of-tesla-big-battery-and-its-government-contract-66888/
[8]http://www.caiso.com/Documents/Wind_SolarReal-TimeDispatchCurtailmentReportMay07_2019.pdf
[9] http://www.caiso.com/Documents/Wind_SolarReal-TimeDispatchCurtailmentReportMay15_2019.pdf
[10] https://www.energy.ca.gov/almanac/electricity_data/total_system_power.html
[11] https://arpa-e.energy.gov/sites/default/files/documents/files/DAYS%20Project%20Descriptions%20FINAL.pdf

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Environmentalists have long promoted renewable energy sources like solar panels and wind farms to save the climate. But what about when those technologies destroy the environment? In this provocative talk, Time Magazine “Hero of the Environment” and energy expert, Michael Shellenberger explains why solar and wind farms require so much land for mining and energy production, and an alternative path to saving both the climate and the natural environment. Michael Shellenberger is a Time Magazine Hero of the Environment and President of Environmental Progress, a research and policy organization. A lifelong environmentalist, Michael changed his mind about nuclear energy and has helped save enough nuclear reactors to prevent an increase in carbon emissions equivalent to adding more than 10 million cars to the road. He lives in Berkeley, California. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
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