Underwater Kites Buoying The Prospect Of More Tidal Power Generation
#greenhacks #news #renewableenergy #tidal #hackaday
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https://hackaday.com/2023/11/15/underwater-kites-buoying-the-prospect-of-more-tidal-power-generation
Music. The thing that keeps me going. The most important thing in my life in addition to the kids and a special person. Recently #TIDAL has introduced playlists that you can share, and also given it's the end of the year, yearly most listened to playlists. So here is mine.
The full playlist is at https://tidal.com/browse/mix/00986e9962ab6c7ff29ae643d2ca14, for those interested.
2022 was also a year of seeing lots of bands for me. A great amount of depletion in my savings account, needing to travel to see many of these tbough. But hey, what is life for, if not living? And, for me, music is living.
So I decided as well to finally ditch #Spotify. Multiple reasons:
Don't get me wrong, Spotify has been great, like technically. Initially maybe 4 or so years ago I was still entrenched with my mp3 collection (still listen to those!) and wanting none of that streaming music business. But Spotify allowed me to find a lot of cool new music I would have not discovered otherwise.
Luckily, these days you have options. And also while you don't own the music you listen to on a streaming service, a lot of it is around on many streaming services. And there are services to move your likes and playlists around. It's not exactly interoperatibility and open API's, but at least it can be done.
I chose to use https://www.tunemymusic.com, it cost $4,5 for a month, handling unlimited amount of tracks and playlists transferred from various music services. About 50% of a beer, so not too bad. It even transferred all the playlists that I just had liked in Spotify, ie not created by me.
The service I tried for now is #Tidal. Out of ̃11K or so tracks as liked or in playlists, around ~280 were not found, which was a pleasant surprise, as I was expecting to lose a majority of my saved tracks. Tunemymusic exports a CSV of the not-found tracks so I can at least follow up on the ones of them later if I want. In terms of features, Tidal seems pretty good. It has all the same daily playlists, recommendations, song radios - all the usual machinery which makes Spotify good.
The really cool thing is Tidal allows paying a bit extra for a larger share towards the artists (the "Hifi PLus - Up to 10% of your subscription is directed to the artists you listen to the most"). Of course I have no experience how this works in general, but at least there is the claim. Anyone know how their reputation is on this?
The bad thing is lack of multi-device sync. Unlikely on Spotify, if I have a web player open and a mobile player open, they don't communicate. Which is a bit of a UX annoyance, but it's not a stopper. Maybe with all the extra income they make off the #DeleteSpotify people they will implement it..
#Deezer seems like something to look at too, so going to do that next, given my migration tool subscription is active for a whole month. Any other services worth trying with a decent enough #music collection? (please don't suggest anything related to Google or Apple, thaaanks).
https://tidal.com/browse/track/5344839
Just wanted to see what a #Tidal share looks like here.
Widget? Preview? Just a boring link?
Also, damn this tune like on all levels ❤️
Sustainable Energy
The ‘world’s most powerful tidal turbine’ starts to export power to the grid
Published Wed, Jul 28 202110:03 AM EDTUpdated 2 Hours Ago
Anmar Frangoul
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A tidal turbine weighing 680 metric tons and dubbed “the world’s most powerful” has started grid-connected power generation at the European Marine Energy Centre in Orkney, an archipelago located north of mainland Scotland.
The news marks another major step forward for the U.K.’s nascent marine energy sector.
In an announcement Wednesday, Scottish engineering firm Orbital Marine Power explained how its 2 megawatt O2 turbine had been anchored in a body of water called the Fall of Warness, with a subsea cable linking it to a local electricity network on land.
It’s expected that the turbine, which is 74 meters long, will “operate in the waters off Orkney for the next 15 years,” the company said, and have “the capacity to meet the annual electricity demand of around 2,000 UK homes.”
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The turbine is also set to send power to a land-based electrolyzer that will generate so-called green hydrogen. In a statement, Orbital Marine Power’s CEO, Andrew Scott, described Wednesday’s news as “a major milestone for the O2.”
Funding for the O2′s construction has come from public lenders via Abundance Investment. The Scottish government has also provided £3.4 million (around $4.72 million) of support through its Saltire Tidal Energy Challenge Fund.
Michael Matheson, the Scottish government’s Cabinet secretary for net zero, energy and transport, said his country was “ideally-placed to harness the enormous global market for marine energy.”
“The deployment of Orbital Marine Power’s O2, the world’s most powerful tidal turbine, is a proud moment for Scotland and a significant milestone in our journey to net zero,” he went on to add.
Looking to the future, Orbital Marine Power said it was “setting its sights” on the commercialization of its tech via the deployment of multi-megawatt arrays.
With miles of coastline, the U.K. as a whole is home to a number of projects related to marine energy.
In April, it was announced that a yearlong research project focusing on the potential of tidal, wave and floating wind technology had secured support from Marine-i, a program centered around innovation in areas such as marine energy.
The project will be based on the Isles of Scilly, an archipelago located off the southwest coast of England, and led by Isles of Scilly Community Venture, Planet A Energy and Waves4Power.
There’s also potential when it comes to rivers. Back in March, the Port of London Authority gave the go ahead for trials of tidal energy technology on a section of the River Thames, a move which could eventually help to decarbonize operations connected to the river.
While interest in marine-based energy systems appears to be growing, the current footprint of the industry and its technologies remains small.
Figures from Ocean Energy Europe show that only 260 kilowatts of tidal stream capacity was added in Europe last year, while just 200 kW of wave energy was installed.
By contrast, 2020 saw 14.7 gigawatts of wind energy capacity installed in Europe, according to industry body WindEurope.
