Archive for the 'Energy Efficiency' Category

The Future of U.S. Solar Photovoltaic Technology – Tonio Buonassisi

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The Future of U.S. Solar Photovoltaic Technology - Tonio Buonassisi

The solar photovoltaic (PV) industry continues to grow, despite intense international competition and recent margin compression.

Can innovation in technology and manufacturing allow American companies to compete and ultimately thrive in this huge but challenging market?

Professor Buonassisi will address these questions as he explores the outlook for American PV cell and module suppliers. He will begin by using an industry-validated bottoms-up cost model to compare the cost-reduction potentials of various innovative PV technologies, and how their successful development could influence manufacturing location decisions. He will also describe recent progress toward these innovative technologies, highlighting the new computational and experimental tools that have accelerated the cycle of discovery and product development — providing “sneak peeks” at the technologies that may grace rooftops in years to come. He will conclude by showcasing recent success stories of U.S. innovation.

Join us as Professor Buonassisi explains how technology innovation will open up pathways for success in the U.S. solar PV industry.

Tonio Buonassisi, MIT Associate Professor of Mechanical Engineering, heads an interdisciplinary research laboratory focused on photovoltaics (PV). He completed his Ph.D. in Applied Science & Technology at UC Berkeley, with additional research at the Fraunhofer Institute for Solar Energy Systems and the Max-Planck-Institute for Microstructure Physics. He is author of over a hundred journal papers, and co-developer of a dedicated course on photovoltaics.

Prof. Buonassisi invents, develops, and applies defect-engineering techniques over the entire solar cell process, from crystal growth to modules, improving the cost effectiveness of commercial and next-generation solar cells. Several of his PV innovations have been implemented in industry, including key contributions leading to the founding of solar start-ups and a research institute.
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In this video, we are going to look at Solar Photovoltaic Thermal Hybrid collector or in short PVT. Its a combination of solar thermal collectors and PV cell.
The removal of heat from PV cells is also improved and the overall output increases to 85%. The added output is in the form of heat.

Given that over 50% of the energy we consume is in the form of heat, this is a valuable device.

How do solar cells work?

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What are solar cells and how do they work? Watch this video to find out!!

#solarcell #scicomm

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Solar Energy| Energy Resources and Consumption| AP Environmental science| Khan Academy

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Keep going! Check out the next lesson and practice what you’re learning:
https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:energy-resources-and-consumption/x0b0e430a38ebd23f:fuel-types-and-uses-ii/e/fuel-types-and-uses-ii

Passive solar energy systems absorb heat directly from the sun without the use of mechanical and electric equipment, and energy cannot be collected or stored. Active solar energy systems use solar energy to heat a liquid through mechanical and electric equipment to collect and store the energy captured from the sun. Photovoltaic solar cells capture light energy from the sun and transform it directly into electrical energy. Their use is limited by the availability of sunlight.

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate or volunteer today! Donate here: https://www.khanacademy.org/donate

Volunteer here: https://www.khanacademy.org/contribute

Credits:

“Greenroof” by pnwra [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Green_Roof_(460698511).jpg

“Santa Fe adobe” by Carol m [Public domain], via Wikimedia Commons:
https://en.wikipedia.org/wiki/Adobe#/media/File:Santa_Fe_adobe.jpg

“Home awnings” by Conarty [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Home_Awnings.jpg

“Thermal solar collector” by Norbert Nagel [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Solar_heating_system_-_Thermosolaranlage_-_M%C3%B6rfelden-Walldorf_-_Germany.jpg

“Ivanpah” by Craig Butz [Public domain], via Wikimedia Commons:
https://en.wikipedia.org/wiki/Ivanpah_Solar_Power_Facility#/media/File:Ivanpah_Solar_Power_Facility_from_the_air_2014.jpg

“Heliostats” by Alexchris [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Type_of_Concentrated_solar_power.png

“Mersin CSP field” by Kohsman [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Mersin_CSP_field.jpg

“Solar calculator” by Rfassbind [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Solar_calculator_casio_fx115ES_crop.jpg

Explained: Photovoltaics

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Explained: Photovoltaics

Associate Professor of Materials Science and Engineering Jeff Grossman explains photovoltaics/solar cells.

Video: Emily Heusted
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Exploring Solar Panel Efficiency Breakthroughs in 2022

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Exploring Solar Panel Efficiency Breakthroughs in 2022

Scientists have just had a major solar panels efficiency breakthrough, and it could mean a big change for the future of renewable energy. Visit https://brilliant.org/undecided to sign up for free. And also, the first 200 people will get 20% off their annual premium membership. This isn’t just more hype, but a sign of where solar panel technology stands today and is heading in the near future. However, this isn’t the only big solar panel news from 2022. There’s been a lot of very recent advancements from perovskites to organic solar cells too, so what does this mean for you and me? Let’s see if we can come to a decision on this.

UPDATE: The US congress recently extended and raised the solar tax credit as part of the Inflation Reduction Act. But you can still research for solar in your area using my EnergySage portal: http://bit.ly/undecidedsolar

Watch Can Solar Really Power This Entire Hotel? https://youtu.be/J4aTcU6Fzoc?list=PLnTSM-ORSgi7UWp64ZlOKUPNXePMTdU4d

Video script and citations:
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00:00 Introduction
01:35 Breaking records
02:38 Ultra thin panels
03:42 Perovskites
06:07 Organic solar cells
10:36 What does it mean for us?
14:48 Sponsor
15:40 Conclusion

The Best Ways to Reduce Your Carbon Footprint | Hot Mess 🌎

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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateMESS

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The average carbon footprint of a person in the US is 16.5 tons –TONS. So, what can you actually do decrease this number and make a meaningful difference?

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Thanks to the funders of Peril & Promise for supporting PBS Digital Studios. Peril & Promise is a national public media initiative from WNET telling human stories of climate change and its solutions. Learn more at http://www.pbs.org/wnet/peril-and-promise/
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2.4 Introduction of Solar Photovoltaic Systems & Applications (Renewable Energy Technology)

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The most useful way of harnessing solar energy is by directly converting it into DC electricity by means of solar photo-voltaic cells.
Photovoltaic comes from the words photo, meaning light, and volt, a measurement of electricity.
Photovoltaic cells are also called PV cells or solar cells for short.
The first practical PV cell was developed by Bell Telephone researchers.
At first, PV cells were used primarily in space to power U.S. space satellites. Now PV cells are common in many different applications.
Solar-powered toys, calculators, and many lighted roadside signs all use solar cells to convert sunlight into electricity.

I turn a bunch of old CDs into a SOLAR PANEL for your home | Homemade Free Energy

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Do you want to create your own homemade solar panel for electricity? Here we teach you how I turn a bunch of old CDs into a solar panel. Build your own solar panel with just some old CDs and some simple materials.

Jukin Media Verified (Original)
Interested in licensing this footage?
Learn more @ https://www.jukinmedia.com/licensing/view/1285447

Index:
00:00 Intro words
00:25 The materials to build a solar panel at home
01:47 Part 1. Crafting a solar panel
05:16 Putting the aluminum foil
07:23 Part 2. Adding the conductive parts
10:19 Creating the wiring
11:07 Part 3. Creating the CD Matrix
12:57 Putting the frame back
13:45 Part 4. Testing the homemade solar panel
14:03 Using the solar panel with a tester
14:17 Powering a bulb with the homemade solar panel
14:50 Powering a motor with the homemade solar panel
15:15 Homemade 12 volt solar panel

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homemade solar panel stand
diy solar generator
homemade solar generator
solaranlage selber bauen
solar generator diy
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Reduce Greenhouse Gas Emissions to Net Zero

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Hear from Ted Borer, Energy Plant Director about how Princeton will achieve its net zero greenhouse gas emissions goal.

This month, we spotlight Princeton’s new net zero greenhouse gas reduction target. Starting now with scalable early action, we are setting the stage to become a fossil-fuel free campus by 2046. This target includes both direct emissions from on-site energy production and fleet fuel use, and indirect emissions from purchased electricity. Additional indirect emissions from commuting, procurement and other activities are being studied to assess actionable reductions.

Our actions toward net zero emissions rely on both known and unknown strategies. Today’s actions range from encouraging behavioral changes and the installation of new renewable energy infrastructure on campus, to rigorous investigation of new renewable electricity generated within our region.

Learn more: https://sustain.princeton.edu/plan

Video by Jared Flesher, Office of Sustainability
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Pipelines are essential for keeping the lights on, homes warm, plants running, planes flying and water flowing. They also provide one of the safest means of transport. By taking some effective actions, they can contribute to the reduction of greenhouse gas emission significantly.

This video summarizes the paper first presented at International Pipeline Conference (IPC) 2022, Calgary Canada
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What can be done to reduce greenhouse gas emissions?

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Mike Walter sits down with Dr. MacCracken, chief scientist for Climate Change Programs with the Climate Institute, to discuss “capturing” carbon dioxide emissions.

Follow CCTV America’s The Heat:
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One of the causes of global warming is CO2.
What can be done to reduce CO2 emissions on a global scale?
DENSO considered three ways to reduce CO2 emissions from automobiles.