First demonstration reactor planned for 2025 in Denmark. First commercial reactor in 2028. Radioactive waste requires 300 years safe storage.
[copenhagenatomics.com] – Company site
[wikipedia.org] – Copenhagen Atomics
[world-nuclear-news.org] – Copenhagen Atomics puts forward SMR design for UK appraisal
[wikipedia.org] – Sabine Hossenfelder
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Replacing fossil fuel with hydrogen seems like an ideal solution to make transportation environmentally friendly and to provide a backup for intermittent energy sources like solar and wind. But how environmentally friendly is hydrogen really? And how sustainable is it, given that hydrogen fuel cells rely on supply of rare metals like platinum and iridium? In this video, we have collected all the relevant numbers for you.
00:00 Intro
00:49 Hydrogen Basics
03:39 The Hydrogen Market
06:04 The Colours Of Hydrogen
12:11 Water Supply
13:34 The Cold Start Problem
14:05 Rare Metal Shortages
15:55 Hydrogen Embrittlement
16:45 Summary
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00:00 Intro
01:13 How the grid works
02:43 More renewables, more problems
05:37 How the grid was built
07:00 What needs to happen
10:47 Conclusion
[source]
The Dutch government wants to build an offshore hydrogen factory, north of the Groningen province. Rationale: there are already natural gas pipelines on the sea floor that can be retrofitted for hydrogen. Target date: 2031, capacity 500 MW.
[rijksoverheid.nl] – Windpark boven Groningen beoogd als ’s werelds grootste waterstof op zee productie in 2031
[tweakers.net] – Nederland wil waterstoffabriek op basis van windenergie bouwen op zee
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Ocean energy storage is a broad category of a whole heap of different methods of generating and/or storing energy in the open ocean. It’s an area that has recently experienced a huge surge of interest, with probably dozens of new startups in the space in recent years, mostly still at very low technology maturity.
The companies that I’ve seen developing ocean energy storage systems pretty much all use one of three operating principles: pumped hydro, gravity and buoyancy.
In this video I’ll talk about how each of these energy storage principles works, and mention some of the companies who are trying to commercialise each type of ocean energy storage.
Bookmarks:
0:00 Intro
01:19 What is Ocean Energy Storage?
01:35 Operating principles behind ocean energy storage technologies
01:42 Pumped Hydro Systems
02:14 Ocean Grazer
02:44 FLASC
03:05 StEnSea
03:35 Gravity Systems
04:04 Ocean Hydro
04:42 Buoyancy Systems
05:35 Thanks to Brilliant for sponsoring this video!
06:30 The “why” of ocean energy storage – potential issues with going offshore
08:55 The case for having ocean energy storage
10:30 Potential synergies between generation and storage offshore
10:59 Rosie’s thoughts on ocean energy storage
12:36 Outro
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