Solar sails for space voyages
Nuclear Rockets to Mars?, BY KARL GROSSMAN– CounterPunch, 16 Feb 21,”………. As for rocket propulsion in the vacuum of space, it doesn’t take much conventional chemical propulsion to move a spacecraft—and fast.
And there was a comprehensive story in New Scientist magazine this past October on “The new age of sail,” as it was headlined. The subhead: “We are on the cusp of a new type of space travel that can take us to places no rocket could ever visit.”
The article began by relating 17th Century astronomer Johanne Kepler observing comets and seeing “that their tails always pointed away from the sun, no matter which direction they were traveling. To Kepler, it meant only one thing: the comet tails were being blown from the sun.”
Indeed, “the sun produces a wind in space” and “it can be harnessed,” said the piece. “First, there are particles of light streaming from the sun constantly, each carrying a tiny bit of momentum. Second, there is a flow of charged particles, mostly protons and electrons, also moving outwards from the sun. We call the charged particles the solar wind, but both streams are blowing a gale”—that’s in the vacuum of space.
Japan launched its Ikaros spacecraft in 2010—sailing in space using the energy from the sun. The LightSail 2 mission of The Planetary Society was launched in 2019—and it’s still up in space, flying with the sun’s energy.
New systems using solar power are being developed – past the current use of thin-film such as Mylar for solar sails.
The New Scientist article spoke of scientists “who want to use these new techniques to set a course for worlds currently far beyond our reach—namely the planets orbiting our nearest star, Alpha Centauri.”……. more https://www.counterpunch.org/2021/02/16/nuclear-rockets-to-mars/
Fukushima to Triple Wind Power Generation
|
Fukushima to Triple Wind Power Generation https://www.nippon.com/en/news/yjj2021020801101/ Feb 8, 2021 Tokyo, (Jiji Press)–Japan’s industry ministry announced a plan on Monday to triple wind power generation in Fukushima Prefecture to 360 megawatts in fiscal 2024 from four years before.The plan highlighted the use of renewable energy as a pillar of efforts to accelerate the recovery of the northeastern prefecture from the March 2011 nuclear accident.
Under the plan, the Fukushima and national governments aim to construct an industrial complex running solely on renewable energy sourced within the prefecture, by fiscal 2030. The national government will provide financing to build some 30 kilometers out of the over 80 kilometers of a grid that will supply electricity in the prefecture from renewable sources. All 10 nuclear reactors in the prefecture are set to be decommissioned, following the triple meltdown at Tokyo Electric Power Company Holdings Inc.’s <9501> disaster-hit Fukushima No. 1 nuclear plant. |
|
Why nuclear power is a bad way to balance renewable energy
Why nuclear power is a bad way to balance renewable energy https://100percentrenewableuk.org/why-nuclear-power-is-a-bad-way-to-balance-renewable-energy
David Toke, Ian Fairlie and Herbert Eppel from 100percentrenewableuk discuss how nuclear power effectively switches off wind and solar power and how a 100percent renewable energy system is much better for the UK than one involving nuclear power
The Government, backed by a lot of public policy reports paid for by pro-nuclear interests, constantly pushes out the view that nuclear power is ‘essential’ to balancing wind and solar power.
But what they never mention is the massive waste of renewables that occurs in such a scenario.
Under the scenarios planned by the Government nuclear power is paid very high prices to generate power even when there is excess electricity, which pushes renewables to close down.
The Government also refuses to undertake serious investigations of how a system that uses excess renewables to create short and long term storage is a much better way of organising our energy needs rather than wasting more money on building nuclear power statitons.
If you agree the aims of 100percentrenewableuk please join the discussion via our email group.
Hydrogen from wind and solar systems could be the ultimate solution to the planet’s pollution problem.
latest claim to fame, two spinoffs of German tech conglomerate Siemens are
joining forces to advance green hydrogen technology by building
wind-to-hydrogen systems to help decarbonize the global economy.
element can be an energy carrier, it can be used to store energy and it can
be used in fuel cells to power vehicles. Green hydrogen is a particularly
attractive option because its production comes from hydrolyzing water using
electricity produced by renewable systems, meaning it has a much lower
carbon footprint than gas- or coal-sourced hydrogen.
pollution problem.
https://oilprice.com/Energy/Energy-General/German-Tech-Giant-Places-Major-Bet-On-Green-Hydrogen.html
For the USA, despite the “Green Nuclear Deal” propaganda, solar power islooking a whole lot better.
Nuclear vs Solar: The Race For Renewable Dominance , Oil Price By Alex Kimani – Nov 11, 2020
“……….. the main sticking point to the promotion of thorium as a cleaner nuclear fuel is that it remains unproven on a commercial scale. Thorium MSRs (Molten Salt Reactors) have been in development since the 1960s by the United States, China, Russia, and France, yet nothing much ever came of them. Further, only about 50 of the world’s 440 reactors can currently be configured to run on thorium.
…… Unfortunately, practical nuclear fusion remains a long-shot and could be decades away from becoming a commercial reality.
We simply don’t have the luxury of time.
Further, nuclear power in the U.S. faces an uncertain future. ……………
Solar rising
Whereas the nuclear sector comeback has its work cut out for it, solar power has clearly been on the ascendancy thanks in large part to falling costs.
Nuclear advocates have pointed to rising electricity costs in California as the reason why other states should think twice before adopting its model. Environmental Progress has reported that between 2011 and 2018, power costs in the Golden State increased by 27.9% compared to a 4% national average. This period coincided with a period when California has been aggressively ramping up its renewable generation capacity. Renewable sources currently account for ~30% of California’s electricity generation with an aim to double that by 2030 and hit 100% by 2045.
But that’s being a bit disingenuous because it fails to capture just how much solar costs have fallen over the timeframe.
According to the Solar Energy Industries Association (SEIA), solar installation costs have dropped by more than 70% over the past decade, opening up vast new markets and systems nationwide. The organization says prices as of Q2 2020 dropped to their lowest levels in history across all market segments, with utility-scale prices ranging from $16/MWh – $35/MWh, thus making it competitive with all other forms of generation. Meanwhile, costs for the average-sized residential system were cut in half from a pre-incentive price of $40,000 in 2010 to roughly $20,000 today.
And no, renewables are not to blame for California’s blackouts.
……………..Strongly Bullish
Despite these challenges, the solar sector remains strongly bullish.
Indeed, S&P Platts says that the shift to renewable energy is likely to continue full steam ahead regardless of fed policies noting that the energy transition has “clearly been moving forward on a regional basis,” despite lacking clear endorsement at the federal level under Trump.
It remains to be seen whether nuclear energy can command the same level of support. https://oilprice.com/Alternative-Energy/Nuclear-Power/Nuclear-vs-Solar-The-Race-For-Renewable-Dominance.html
The global energy revolution
RethinkX 25th Nov 2020, We are on the cusp of the fastest, deepest, most profound disruption of the energy sector in over a century. Like most disruptions, this one is being driven by the convergence of several key technologies whose costs and capabilities have been improving on consistent and predictable trajectories – namely, solar photovoltaic power, wind power, and lithium-ion battery energy storage.
Our analysis shows that 100% clean electricity from the combination of solar, wind, and batteries (SWB) is both physically possible and economically affordable across the entire continental United States as well as the overwhelming majority of other populated regions of the world by 2030.
Adoption of SWB is growing exponentially worldwide and disruption is now inevitable because by 2030 they will offer the cheapest electricity option for most regions. Coal, gas, and nuclear power assets will become stranded during the 2020s, and no new investment in these technologies is rational from this point forward.
Ontario could get clean renewable energy from neighbouring provinces, with no need for nuclear power
 With nuclear power plants approaching end of life, what’s next in Ontario? Barrie Today, Peter Bursztyn 25 Nov 20, ‘Two decades is just enough time for major new electricity generation projects to go through the planning and permitting process, get built, and come on line,’ says reader
……. When Hydro Quebec’s grand James Bay hydroelectricity project was built, many of the dams were constructed with space to accept more turbine units than are now installed.
In other words, these dams spill a great deal of water which could instead flow through a turbine to generate power. Taken as a whole, James Bay is one of the world’s largest power generation projects. Its capacity is 15,527 megawatts, the equivalent of 16 nuclear power plants. In 1971, when the project began, the Canadian government tried to persuade Quebec to choose nuclear power instead. With hindsight, Quebec was wise to choose hydroelectricity. Ontario, which did not have similar hydroelectric resources, built Unfortunately, we found nuclear to be a costly method of producing electricity; expensive enough that much of the debt incurred to build Ontario’s nuclear “fleet” still remains on the province’s books a half-century on. We never managed to pay it off……. our fleet of nuclear power plants is coming to the end of its design life. Over the coming two decades, most of our nuclear fleet will begin to wink out. We know that we cannot replace them with new nuclear units; they are simply too costly. The last Liberal government called for tenders to build nuclear plants, but insisted the bidders had to be responsible for cost over-runs. As a result, two of the three potential builders dropped out. The third offered to build, but refused to accept responsibility for cost escalation. The nuclear plan was quietly dropped……….. Ontario cannot generate enough renewable, carbon-free electricity to replace our current nuclear output within our own borders. (It is worth saying that nuclear power is not renewable.) Fortunately, our neighbouring provinces — Manitoba and Quebec — have the potential to generate considerably more than they currently use. Many of Quebec’s already completed dams have space in their turbine halls for more units. Quebec could “drop in” about 13,000 MW of generation. This is roughly equal to Ontario’s nuclear capacity, and not all of our nuclear units are running at any one time. Quebec has also surveyed other potential hydroelectric sites, both to the south and to the north of the James Bay project. More hydroelectric power could be exploited in northeast Quebec. Our western neighbour, Manitoba, has a number of sites with hydroelectric generation potential on the Nelson River near major existing power stations. There is also untapped potential hydroelectric power available to the southeast of Lake Winnipeg, even closer to Ontario. ………. Although the wind doesn’t blow continuously, expanding wind generation would reduce the amount of electricity Alberta needs to purchase from B.C. Since hydro power can be ramped up very rapidly, it would also reduce or even eliminate the need for gas-fired generation to meet demand peaks. Of course, the same applies to Ontario. We are a country blessed with a great deal of hydroelectric potential. Inexpensive, carbon-free electricity generation is within our grasp. All it needs is vision and leadership. https://www.barrietoday.com/letters-to-the-editor/letter-with-nuclear-power-plants-approaching-end-of-life-whats-next-in-ontario-2902273 |
|
Cheap and effective, but solar energy is omitted from UK govt’s 10 point plan
Energyst 19th Nov 2020, Despite being the most cost-effective electricity generating technology for
the foreseeable future according to the Government’s own forecasts, solar
was noticeably absent from the Prime Minister’s announcement, which is
largely a repackaging of policies already announced earlier this year.
While the Government has yet to make its ambitions for UK solar clear there
is lively activity taking place in other parts of the public sector. The
City of London has announced a new 15-year Power Purchase Agreement (PPA)
with developer Voltalia, which will see a 50MW solar park built in Dorset
to supply the City with clean power. STA chief executive Chris Hewett said,
“It is disappointing that Number 10 has yet to grasp the opportunity
presented by solar in the UK. Not only is it set to be the cheapest power
source for years to come, it also provides good jobs and business
opportunities up and down the country.
https://theenergyst.com/uk-solar-industry-body-criticises-lack-of-support-in-ten-point-green-plan/
Super power: Here’s how to get to 100pct wind, solar and storage by 2030 — RenewEconomy
Deep disruption: New report from futurist Tony Seba and RethinkX says transition to 100pct renewables possible by 2030, and the “super” surplus of wind and solar can be used to power transport and industry. The post Super power: Here’s how to get to 100pct wind, solar and storage by 2030 appeared first on RenewEconomy.
Super power: Here’s how to get to 100pct wind, solar and storage by 2030 — RenewEconomy
A team led by renowned Stanford University futurist Tony Seba says most of
the world can transition to 100 per cent wind, solar and storage
electricity grids within the coming decade, in what they describe as the
fastest, deepest and most profound disruptions ever seen in the energy
industry.
The RethinkX team led by Seba, one of the few analysts to
correctly forecast the plunging cost of solar over the last decade,
predicts that the disruption caused solar, wind and lithium-ion battery
storage, or SWB, will be similar to the digital disruption of information
technology. “Just as computers and the Internet slashed the marginal cost
of information and opened the door to hundreds of new business models that
collectively have had a transformative impact upon the global economy, so
too will SWB slash the marginal cost of electricity and create a plethora
of opportunities for innovation and entrepreneurship.”
“Our analysis
shows that 100% clean electricity from the combination of solar, wind, and
batteries (SWB) is both physically possible and economically affordable
across the entire continental United States as well as the overwhelming
majority of other populated regions of the world by 2030.
“Adoption of
SWB is growing exponentially worldwide and disruption is now inevitable
because by 2030 they will offer the cheapest electricity option for most
regions. Coal, gas, and nuclear power assets will become stranded during
the 2020s, and no new investment in these technologies is rational from
this point forward.”
The analysis from Seba and the RethinkX team is just
the latest of a series of important reports that have been released in
recent weeks and months that look at the pace of technology change, the
energy transition and climate goals.
USA: Millions of jobs in clean energy and infrastructure – analysis finds.
“We don’t have to choose between a strong economy or a healthy environment—we can have both,” says an EPI data analyst. Common Dreams, byJessica Corbett, staff writer – 20 Oct 20, Pursuing trade and industrial policies that boost U.S. exports and eliminate the trade deficit while investing $2 trillion over four years in the nation’s infrastructure, clean energy, and energy efficiency improvements could support 6.9 to 12.9 million “good jobs” annually by 2024, according to an analysis published Tuesday.
Queensland, Australia to get the ‘world’s greenest city’
Renew Economy 21st Oct 2020, French energy giant Engie backs Greater Springfield development, aiming to be ‘world’s greenest city’, with zero emissions transport plan. The post Energy giant Engie supercharges green city development with support for EVs, hydrogen transport appeared first on RenewEconomy.
A new city being developed in south-east Queensland aiming to become one of
the world’s greenest is set to get a boost, with a new roadmap launched with the backing of one of the world’s largest energy companies.
Greater Springfield, which is located around 30km south-west of Brisbane and has
grown to a population of 45,000 has released a new master plan that will see electric vehicle charging infrastructure and a hydrogen fuelled bus network rolled out, in an effort to create the ‘world’s greenest city’ by 2038.
The city is one of Australia’s largest privately funded city developments, including a mix of residential and business districts, and has attracted a campus of the University of Southern Queensland.
Energy giant Engie supercharges green city development with support for EVs, hydrogen transport — RenewEconomy
The very genuine promise of cheap electricity – solar power
Nuclear power never delivered on its promise, but will solar? John Quiggin, Canberra Times, 19 Oct 20,
The International Energy Agency attracted attention recently when executive director Fatih Birol declared that solar would be “the new king of electricity markets.” Long known for its conservative view of renewables, the IEA’s latest Global Energy Review marked a radical change. Instead of growing slowly over time, solar (along with wind and other renewables) is now seen as meeting all new electricity demand, with coal set for a sharp decline. …….
The prospect of electricity this cheap might seem counter-intuitive to anyone whose model of investment analysis is based on concepts like “present value” and payback periods. But in the world of zero real interest rates that now appears to be upon us, such concepts are no longer relevant. Governments can, and should, invest in projects whenever the total benefits exceed the costs, regardless of how those benefits are spread over time.
- John Quiggin is a Professor of Economics at the University of Queensland and a columnist with Inside Story, where this article also appears. https://www.canberratimes.com.au/story/6974708/energy-that-is-too-cheap-to-meter/
Britain’s zero emissions policy will bring many 1000s of jobs, investing in green infrastructure
help to achieve Boris Johnson’s national renewal mission, a report
published today says. Investment in green infrastructure and technologies
will prevent long-term scarring of the labour market in the wake of the
Covid-19 crisis, the report by the London School of Economics adds.
this summer to “build back better, build back greener, build back
faster” after GDP collapsed by a record 19.8 per cent as a result of a
national lockdown.
government investment would create the maximum number of jobs while also
helping to achieve the UK’s commitment of carbon neutrality, including
renewable energy infrastructure, electric vehicle production and home
energy efficiency retrofits. The UK was the world’s first major economy
to enshrine in law a commitment to reach net zero carbon emissions by 2050.
https://www.thetimes.co.uk/edition/business/net-zero-goal-will-be-ally-of-recovery-w09wcx7hn
China’s world-leading push for solar and wind energy
capacity each year than any other country, with over 760GW installed so
far. By contrast, the EU has only managed 500GW, the USA 250 GW.
capacity additions in China are expected to fall by over 16% to 19 GW from
2020 to 2021, given the Chinese government’s decision to end subsidies,
say analysts Wood Mackenzie.
250 GW of wind capacity to be added, with repowering opportunities onshore
and growth potential offshore. Indeed, some see the latter booming
dramatically. So, while wind subsidies will fall by 3.2%, wind capacity
will still grow, and PV solar seem likely to do even better: incentives for
PV will rise by 14%, with some seeing solar as the major growth area longer
term, helping China get 62% of its power from non-fossil sources by 2030.
https://renewextraweekly.blogspot.com/2020/10/china-renewables-to-expand-even-more.html
Solar energy is here with a vengeance – look at South Australia
Forbes 17th Oct 2020, Anyone who follows developments in the energy sector will know that solar energy is no longer just the future but the present. According to thebInternational Energy Agency’s World Energy Outlook 2020, photovoltaic solar energy is already the cheapest source of electricity in history.As a result, solar panels can now be fitted anywhere, covering water canals in India, on canopies over Germany’s autobahns, or on school roofs in the United States. When the economic variables of a technology change in this way, creating an oversized electricity generation grid based on solar and wind is the logical alternative, and whoever does not do so will be relegated to less efficient and, above all, dirtier energy sources.
https://www.forbes.com/sites/enriquedans/2020/10/17/what-is-happening-with-solarenergy/amp
/
1 This Month
of the week – Shut Down Drone Warfare!
Tell the Ukrainian Government to Drop Prosecution of Peace Activist Yurii Sheliazhenko
Petition to revoke the licensing of the Near Surface Nuclear Disposal Facility (NSDF) at Chalk River. https://www.ourcommons.ca/petitions/en/Petition/Details?Petition=e-7247
To see nuclear-related stories in greater depth and intensity – go to https://nuclearinformation.wordpress.com
-
Archives
- April 2026 (19)
- March 2026 (251)
- February 2026 (268)
- January 2026 (308)
- December 2025 (358)
- November 2025 (359)
- October 2025 (376)
- September 2025 (257)
- August 2025 (319)
- July 2025 (230)
- June 2025 (348)
- May 2025 (261)
-
Categories
- 1
- 1 NUCLEAR ISSUES
- business and costs
- climate change
- culture and arts
- ENERGY
- environment
- health
- history
- indigenous issues
- Legal
- marketing of nuclear
- media
- opposition to nuclear
- PERSONAL STORIES
- politics
- politics international
- Religion and ethics
- safety
- secrets,lies and civil liberties
- spinbuster
- technology
- Uranium
- wastes
- weapons and war
- Women
- 2 WORLD
- ACTION
- AFRICA
- Atrocities
- AUSTRALIA
- Christina's notes
- Christina's themes
- culture and arts
- Events
- Fuk 2022
- Fuk 2023
- Fukushima 2017
- Fukushima 2018
- fukushima 2019
- Fukushima 2020
- Fukushima 2021
- general
- global warming
- Humour (God we need it)
- Nuclear
- RARE EARTHS
- Reference
- resources – print
- Resources -audiovicual
- Weekly Newsletter
- World
- World Nuclear
- YouTube
-
RSS
Entries RSS
Comments RSS
nuclear-news 