Archive for January, 2022

How green is solar energy really?

Energy Efficiency No Comments »

More and more solar panels are popping up all over the world – and it’s easy to see why: They provide clean energy at falling prices. Awesome, right? Well actually, there are also some not-so-green sides to this technology. We’ll take a closer look at three big criticisms solar energy faces and check out just how much of a problem they are.

We’re destroying our environment at an alarming rate. But it doesn’t need to be this way. Our new channel Planet A explores the shift towards an eco-friendly world — and challenges our ideas about what dealing with climate change means. We look at the big and the small: What we can do and how the system needs to change. Every Friday we’ll take a truly global look at how to get us out of this mess.

#PlanetA #SolarPower #Solar

Read More (Links):

GHG emissions for different forms of electricity generation:
https://www.nrel.gov/docs/fy21osti/80580.pdf

Solar waste and recycling:
https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2016/IRENA_IEAPVPS_End-of-Life_Solar_PV_Panels_2016.pdf

Solar Scorecard:
http://www.solarscorecard.com/2018-19/2018-19-SVTC-Solar-Scorecard.pdf

Reporter: Malte Rohwer-Kahlmann
Video editor: Eva Höppner, Nils Reinecke
Supervising editor: Joanna Gottschalk, Kiyo Dörrer

0:00 Intro
0:49 Emissions
3:06 Toxic Chemicals
5:31 Waste
8:26 Conclusion

This lecture is about solar energy.

#SolarEnergy

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How do wind turbines work? – Rebecca J. Barthelmie and Sara C. Pryor

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Explore how wind turbines convert wind into electricity, and the challenges of powering the world entirely with wind energy.

Every 24 hours, wind generates enough kinetic energy to produce roughly 35 times more electricity than humanity uses each day. And unlike coal or oil, this resource is totally renewed each day. So how can we harness this incredible amount of energy, and is it possible to create a world powered entirely by wind? Rebecca Barthelmie and Sara Pryor dig into the science of wind turbine technology.

Lesson by Rebecca J. Barthelmie & Sara C. Pryor, directed by Gavin Edwards, Movult.

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The Truth About Nuclear Energy

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Chernobyl, Fukushima, The Simpsons power plant, they all involve lies!
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Written by Greg Brown and Laura Roklicer
Edited by Luka Šarlija

Video References:
InANutShell – How Many People Did Nuclear Energy Kill? Nuclear Death Toll https://youtu.be/Jzfpyo-q-RM
Real Engineering – The Economics of Nuclear Energy https://youtu.be/UC_BCz0pzMw

References:
The Story of More by Hope Jahren
https://academic.oup.com/eurheartj/article/40/20/1590/5372326
https://ourworldindata.org/safest-sources-of-energy
https://www.nature.com/articles/497539e
https://environmentalprogress.org/big-news/2020/6/29/on-behalf-of-environmentalists-i-apologize-for-the-climate-scare
https://www.health.harvard.edu/cancer/radiation-risk-from-medical-imaging
https://www.newyorker.com/news/dispatch/is-nuclear-power-worth-the-risk
How To Avoid a Climate Disaster by Bill Gates
https://www.google.com/url?q=http://wedocs.unep.org/bitstream/handle/20.500.11822/7790/-Radiation_Effects_and_sources-2016Radiation_-_Effects_and_Sources.pdg.pdf.pdf?sequence%3D1%26isAllowed%3Dy&sa=D&source=editors&ust=1616634317411000&usg=AOvVaw3RQ_1UzwPOVYd1BEN5JEMQ
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6194698/
https://ourworldindata.org/safest-sources-of-energy
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996147/
https://vault.sierraclub.org/nuclear/factsheet.aspx

How does nuclear energy work? Is radiation a risk? Find out the difference between nuclear fission and fusion, how uranium fuels the process, and the pros and cons of this alternative energy source.
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Read more in “What is nuclear energy and is it a viable resource?”
https://on.natgeo.com/2uwNeij

What is Nuclear Energy? | National Geographic

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https://www.youtube.com/natgeo

What is Solar Power? | National Geographic

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What are solar cells, and how do they work? Find out more about solar power – and learn how this renewable resource harnesses the power of the sun into usable energy.
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What is Solar Power? | National Geographic

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Here’s Presenting The Dr. Binocs Show SEASON 2 – Inventions

Learn all about the Invention Of Solar House from Dr. Binocs himself

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Geothermal Energy Options – How It Works

Renewable Energy No Comments »

Geothermal Energy Options – How It Works

Geothermal Energy Options is a full service geothermal heating and cooling company. We engineer, design and install residential and commercial systems and specialize in direct exchange geothermal.

We are certified by BPI, IGSHPA, NYSERDA and part of Central Hudson’s Trade Allies and The Connecticut Clean Energy Fund. All of our employees are trained and certified in every phase of the geothermal process.

It is our goal to supply our clients with well designed, well installed geothermal heating systems, sensible solar products, wind power as well as emerging energy saving technology. Use of this technology can help eliminate or reduce America’s dependency on foreign oil, and fossil fuel products. With a range of equipment to suit as many needs as possible, we can accommodate nearly every type of new and retrofitted situation.

Geothermal Energy Options is committed to providing sound geothermal energy options and solutions for the residential and commercial building industries. Having over three decades experience in the construction and building energy industries, we offer complete turnkey services to our clients. As a consultant, we offer building modeling and energy auditing services that identify your building’s energy consumption and the potential for improvement. Our company can engineer and design for your home or businesses complete building system solutions that improve the building’s thermal performance, interior comfort level and indoor air qualities. The result is a healthier building, with reduced annual energy consumption.

Visit our website at www.geo-us.com or call us at (877) ALL-4-GEO
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Geothermal energy is renewable and powerful. Why is most of it untapped?

Renewable Energy No Comments »

The potential of geothermal energy seems enormous. If estimates are correct, then the heat under our feet amounts to 50,000 times more power than all the oil and gas resources in the world. So why isn’t everybody using this renewable energy?

#PlanetA #Geothermal #Renewable

We’re destroying our environment at an alarming rate. But it doesn’t need to be this way. Our new channel Planet A explores the shift towards an eco-friendly world — and challenges our ideas about what dealing with climate change means. We look at the big and the small: What can we do and how the system needs to change. Every Friday we’ll take a truly global look at how to get us out of this mess.

READ MORE:

What is geothermal energy? https://ensia.com/features/geothermal-energy/

Geothermal Power Generation in the World 2015-2020:
https://www.geothermal-energy.org/pdf/IGAstandard/WGC/2020/01017.pdf

Indonesia’s Geothermal Potential:
https://drive.esdm.go.id//wl/?id=z0gQem1FwdkHVuXjtR6IAOCBJRDFSQwF
and https://www.researchgate.net/publication/286478533_Indonesian_Geothermal_Energy_Potential_as_Source_of_Alternative_Energy_Power_Plant
and https://www.worldbank.org/en/results/2017/12/01/geothermal

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Author: Lennart Behnke
Video Editor: Andreas Hyronimus
Supervising Editor: Kiyo Dörrer
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Nuclear Energy Explained: How does it work? 1/3

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Nuclear Energy Explained: How does it work?

Nuclear Energy is a controversial subject. The pro- and anti-nuclear lobbies fight furiously, and it’s difficult to decide who is right. So we’re trying to clear up the issue – in this video we discuss how we got to where we are today, as the basis for discussion. Next week we’ll be looking at the arguments for and against nuclear power in detail.

To get a free audiobook and support our channel, go to audible.com/nutshell – thanks! : )

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Nuclear Energy Explained: How does it work?

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Do we Need Nuclear Energy to Stop Climate Change?

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Sources & further reading:
https://sites.google.com/view/sourcesclimatenuclear/

Do we need nuclear energy to stop climate change? More and more voices from science, environmental activists and the press have been saying so in recent years – but this comes as a shock to those who are fighting against nuclear energy and the problems that come with it. So who is right? Well – it is complicated.

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The Problem with Solar Energy in Africa

Energy Efficiency No Comments »

The Problem with Solar Energy in Africa

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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

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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.

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A record year for trackers

Solar trackers: everything you need to know


https://www.sciencedirect.com/topics/materials-science/organic-solar-cells
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Organic solar cells: what you need to know


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Turn Your Smartphone Into A Solar Panel


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Thin film solar panels: do they make sense for residential?


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Solar thermal fuels


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How do Wind Turbines work ?

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Working of a wind turbine is illustrated in this video with the help of animation. The topic covered are blade design, use of brake, velocity sensor, yawing mechanism, blade tilting, wind turbine efficiency and Betz’s limit.

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Hydropower 101

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Hydropower or hydroelectricity refers to the conversion of energy from flowing water into electricity.
Learn more about hydropower and all types of energy at www.studentenergy.org
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Student Energy is a global youth-led organization empowering the next generation of leaders who are accelerating the transition to a sustainable, equitable energy future. We work with a network of 50,000 young people from over 120 countries to build the knowledge, skills, and networks they need to take action on energy. Learn more at www.studentenergy.org

Learn how hydropower captures the kinetic energy of flowing water and turns it into electricity for our homes and businesses.
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