Archive for the tag: Worth

Wind Turbines for Home: Is it Worth It?

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Visit https://brilliant.org/EngineeringwithRosie/ to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription.

Does small wind energy or backyard wind turbines make sense? Why do we see so much rooftop solar, but so little rooftop wind?

Bookmarks
00:00 Intro – Rooftop solar’s domination in the urban renewables sector
00:38 Why don’t we see more rooftop wind turbines?
01:38 Quality of solar resources – Solar irradiation in different places around the world
02:40 Quality of wind resources – Urban wind effects, wind shear effects, available power in wind
04:53 Available wind power in Kolding vs Canberra
05:40 Other points of comparison – Benefits gained from a rural location, noise and vibration issues, maintenance required
07:47 Applications for urban wind technologies – Off-grid properties, high-wind speed locations, rural farms, non-utility and aesthetic purposes, backyard engineering or DIY
09:54 Outro
10:11 Thanks to Brilliant for sponsoring this video!

In this video I’ll take you through the science and engineering reasons why rooftop solar is much easier than small wind, and show that the same wind turbine on a roof is likely to generate *less than 10%* of the energy a turbine of the same size would generate in a nearby wind farm.

And, because I know most of you found this video because you already know you want to do a DIY wind energy project (they’re fun!) or have an off-grid project that needs wind energy to diversify your energy, I have included some resources (Hugh Piggott’s great books on DIY wind energy and certified small wind turbines if you want to buy one).

Thanks to Brilliant for sponsoring this video! They are offering 20% annual subscriptions for the first 200 viewers to sign up at https://Brilliant.org/EngineeringwithRosie

Resources:
Firstlinks – Eraring Power Station
https://www.firstlinks.com.au/eraring-power-station-closure
OpenNEM
https://opennem.org.au
Weather and Climate – Monthly Sunhours
https://weather-and-climate.com
Global Solar Atlas
https://globalsolaratlas.info
Global Wind Atlas
https://globalwindatlas.info
My video on the gingerbread wind turbine projec

Micallef and Brussel, 2018 – Urban Wind
DOI: 10.3390/en11092204
Salazar et al, 2016 – Wind Shear
DOI: 10.3390/s17010008

If you would like to help develop the Engineering with Rosie channel, you could consider joining the Patreon community, where there is a chat community (and Patreon-only Discord server) about topics covered in the videos and suggestions for future videos and production quality improvements. https://www.patreon.com/engineeringwithrosie

This video was sponsored by Brilliant.

Solar Panels: Are they worth it

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KPRC 2 Investigates answer all of your questions about solar panels
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Micro Wind Turbines… Are They Worth It? (Off Grid Solar)

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Is Geothermal Heating and Cooling Worth the Cost? Heat Pumps Explained

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Is Geothermal Heating and Cooling Worth the Cost? Heat pumps Explained. Go to http://brilliant.org/Undecided to sign up for free. And also, the first 200 people will get 20% off their annual premium membership. When building a house, homeowners have several ways to power their heating and cooling systems, like oil, natural gas, or electricity. But there’s another option right below our feet. You can install geothermal heating and cooling in your home, but is it worth the cost? And how does it hold up?

▻ Watch Geothermal Energy Explained – A Not So Hot Solution? – https://youtu.be/-HhdR9YRGxI?list=PLnTSM-ORSgi5LVxHfWfQE6-Y_HnK-sgXS

▻ Follow-up podcast episode: https://youtu.be/fkX2vHCf17s

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Is Recycling Worth It? – Extra Stuff

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These days, if you want to be environmentally conscious you gotta recycle. But is recycling really more efficient than just making new stuff? Ryan breaks it down for you and takes a look at some of the cost and energy savings of recycling.

Want to help the Good Stuff survive? Consider contributing to our Subbable campaign.
http://subbable.com/goodstuff

________________

More Info About Recycling!

Energy Savings
http://www.epa.gov/climatechange/wycd/waste/downloads/Energy%20Savings.pdf

Environmental Benefits study by WRAP
http://www.wrap.org.uk/content/environmental-benefits-recycling

Methane!
http://epa.gov/climatechange/ghgemissions/gases/ch4.html

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6 Years Living on Solar Power is it Worth it? Let's Do the Math

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6 Years Living on Solar Power is it Worth it? Let’s Do the Math. I put it in black and white where you can see very easy.

You know you have done a good job on a video when other channels buy thumbs down for your videos Thanks guys!

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