by John Parnell, January 10, 2019 in Forbes
China has said it will not approve wind and solar power projects unless they can compete with coal power prices.
Beijing pulled the plug on support for large solar projects, which had been receiving a per kWh payment, in late May. That news came immediately after the country’s largest solar industry event and caught everyone by surprise.
Officials are understood to have been frustrated at seeing Chinese suppliers and engineering firms building solar projects overseas that delivered electricity at prices far below what was available back home.
by Richard Patton, January 1, 2019 in WUWT
Statements implying that wind and solar can provide 50% of the power to the grid are not difficult to find on the internet. For example, Andrew Cuomo announced that
“The Clean Energy Standard will require 50 percent of New York’s electricity to come from renewable energy sources like wind and solar by 2030…”
Considering that the wind is erratic, and the solar cells only put out full power 6 hours per day, it seems a remarkable statement. Can intermittent energy actually supply that much power?
For some answers, we turn to Germany, which has some of the highest electric bills in the world as well as a high proportion of its electric power produced by wind and solar (19%). Let’s take a look at German consumption and generation.
by O. Lundseng at al., December 21, 2018 in WUWT
More people are finally beginning to realize that supplying the world with sufficient, stable energy solely from sun and wind power will be impossible.
Germany took on that challenge, to show the world how to build a society based entirely on “green, renewable” energy. It has now hit a brick wall. Despite huge investments in wind, solar and biofuel energy production capacity, Germany has not reduced CO2 emissions over the last ten years. However, during the same period, its electricity prices have risen dramatically, significantly impacting factories, employment and poor families.
Germany has installed solar and wind power to such an extent that it should theoretically be able to satisfy the power requirement on any day that provides sufficient sunshine and wind. However, since sun and wind are often lacking – in Germany even more so than in other countries like Italy or Greece – the country only manages to produce around 27% of its annual electric power needs from these sources.
by Robert Lyman, May 2016 in FriendsOfScience
A number of environmental groups in Canada and other countries have recently endorsed the “100% Clean and Renewable Wind, Water and Sunlight (WWS)” vision articulated in reports written by MarkJacobson, Mark Delucci and others. This vision seeks to eliminate the use of all fossil fuels (coal, oil and natural gas) in the world by 2050. Jacobson, Delucci et. al. have published “all-sector energy roadmaps”in which they purport to show how each of 139 countries could attain the WWS goal. The purpose of this paper is to examine whether the 100% goal is feasible.
While a range of renewable energy technologies (e.g. geothermal, hydroelectric, tidal, and wave energy) could play a role in the global transformation, the world foreseen in the WWS vision would be dominated by wind and solar energy. Of 53,535 gigawatts (GW) of new electrical energy generation sources to be built, onshore and offshore wind turbines would supply 19,000 GW (35.4%), solar photovoltaic (PV) plants would supply 17,100 GW (32%) and Concentrated Solar Power plants (CSP) would supply 14,700 GW (27.5%). This would cost $100 trillion, or $3,571 for every household on the planet.
by H. Pettit, November 9, 2018 in MailOnline
Images reveal a timeline of the ancient landmasses buried beneath Antarctica
They were taken by the long-dead Gravity field and Ocean Circulation Explorer
The ESA satellite collected data on Earth’s gravitational pull
- The study revealed that West Antarctica (green) has a thinner crust than East Antarctica (blue), which has a ‘family likeness to Australia and India’
by K. Richard, November 1, 2018 in NoTricksZone/PNAS
Governments vociferously promote bioenergy as renewable, sustainable, and carbon-neutral. But scientists are increasingly characterizing this “belief” as a “major error”, as bioenergy generates more CO2 emissions per kWh than burning coal does, and the projected rapid growth in bioenergy will serve to ‘increase atmospheric CO2 for at least a century’ as well as clear forests and destroy natural ecosystems.
by Jason Deign, October 2, 2018 in gym
Renewables developers eyeing Saudi Arabia remain wary of the market following the news that the world’s biggest solar project has been canceled.
The $200 billion, 200-gigawatt solar plant planned by SoftBank and the Saudi Public Investment Fund had raised skepticism among developers when it was announced in March, partly because of technical concerns over how it might be integrated into the grid.
The main worry, though, was that the megaproject appeared to have been approved independently of plans for an orderly ramp-up of solar through a tender program managed by the Saudi Renewable Energy Project Development Office (REPDO).
by James Temple, October 4, 2018 in MITTechnologyReview
Wind power is booming in the United States.
It’s expanded 35-fold since 2000 and now provides 8% of the nation’s electricity. The US Department of Energy expects wind turbine capacity to more than quadruple again by 2050.
But a new study by a pair of Harvard researchers finds that a high amount of wind power could mean more climate warming, at least regionally and in the immediate decades ahead. The paper raises serious questions about just how much the United States or other nations should look to wind power to clean up electricity systems.
Wind power reduces emissions while causing climatic impacts such as warmer temperatures
Warming effect strongest at night when temperatures increase with height
Nighttime warming effect observed at 28 operational US wind farms
Wind’s warming can exceed avoided warming from reduced emissions for a century
by P. Gosselin, September 30, 2018 in NoTricksZone
We have to face it: The West has done our planet no favor by moving industrial production and manufacturing to China. Trump is right, many of factories and industries are better back home, even if it means paying a bit more for products.
Not only does the China use the oceans as a global dump for much of its plastic trash, the country now is gearing up to turn parts of the planet into a toxic solar panel waste dump.
According to French science magazine Futura here, we are looking at a “solar panel time bomb”.
Futura describes how China is installing “gigantic” solar panel farms in remote places like Tibet and how 30 years from now the country will have “mountains of solar panels reaching their end of their lives and that nothing is planned for their collection and recycling.”
by Larry Hamlin, September 30, 2018 in WUWT
“Germany’s Federal Audit Office has accused the federal government of having largely failed to manage the transformation of Germany’s energy systems.”
“A little more than a year before Germany’s climate-policy “milestone 2020”, the auditing body has concluded a catastrophic assessment of the government’s energy policy. Germany would miss its targets for both reducing greenhouse gas emissions and primary energy consumption as well as for increasing energy productivity and the share of renewable energy in transport. At the same time, policy makers had burdened the nation with enormous costs.”
The audit further concluded that the program is a monumental bureaucratic nightmare where “The Federal Government, incidentally, does not have an overall grasp of the costs or any transparency in this respect.”
by Rémy Prud’homme, 16 septembre 2018, in Contrepoints
Michael Bloomberg est un milliardaire américain (pas un petit : l’une des vingt plus grosses fortunes mondiales), membre du parti démocrate, ancien maire de New York. C’est naturellement un farouche défenseur de l’environnement, ce qui lui a valu d’être nommé par le Secrétaire Général des Nations-Unies « envoyé spécial pour l’action climatique ». On ne peut pas le soupçonner de minorer le développement des énergies propres.
LES INVESTISSEMENTS DANS L’ÉNERGIE « PROPRE » SONT EN DÉCLIN
Le rapport que publie l’entreprise qu’il dirige (en fait une filiale consacrée aux énergies nouvelles) montre que les investissements dans « l’énergie propre », définie comme l’éolien et le photovoltaïque, ont diminué dans la plupart des pays du globe au cours des années 2010. Le point haut a été atteint en 2011. Depuis cette date, les investissements stagnent ou diminuent, à des taux divers selon les pays et les années.
La COP21, en 2015, devait sauver le monde grâce à des investissements massifs dans ces domaines. Elle n’a rien fait de tel. Au contraire, les années 2016, 2017 et 2018 sont marquées par une accélération de la baisse des investissements.
by Johann Rivalland, 24 août 2018 in Contrepoints
Les nouvelles politiques énergétiques et le choix des énergies renouvelables sont-ils en train de nous mener droit dans le mur ?
Hervé Machenaud a mené toute sa carrière professionnelle dans le secteur de l’énergie, où il a notamment contribué à la création de centrales nucléaires en France et à l’étranger et à la conception de l’EPR, le réacteur franco-allemand.
C’est en spécialiste des questions industrielles liées à l’énergie qu’il tire la sonnette d’alarme, mettant en cause des orientations politiques périlleuses, susceptibles selon lui de causer des dommages colossaux à nos sociétés dans leur ensemble.
UN CONSTAT IMPLACABLE
Au cours de la dernière décennie, ce sont des montants gigantesques de dépréciations qui ont été essuyés par les grands électriciens européens. Plus de 100 milliards d’euros rien qu’en quatre ans depuis 2014. Constat qui se paye par un désengagement préoccupant des grandes compagnies dans la production d’électricité. Au total, ce sont en effet 60 GW de moyens conventionnels d’électricité qui auront été arrêtés en Europe à la fin de la décennie, précise-t-il, soit l’équivalent du parc nucléaire français.
by BloombergNRF, July 9, 2018
Electricity generation using wind turbines. Included in this sector, are players across the entire value chain of both onshore and offshore developments. From manufacturers of turbines, components and subassemblies to developers, generators, utilities and engineering firm.
All technologies which capture energy directly from the sun. These include production of electricity using semiconductor-based photovoltaic (pv) materials, use of concentrated sunlight to heat fluids that drive power generation equipment (solar thermal), and passive methods which use sunlight to heat water. Whilst company level investment of passive methods is recorded, investment in passive projects is not.
Liquid transportation fuels including biodiesel and bioethanol. These can be derived from a range of biomass sources, including sugar cane, rape seed, soybean oil or non-food cellulosic feedstock. Our database excludes producers of base biomass, but includes suppliers of everything from the processing technologies and equipment, through the logistics of distribution, to manufacturers of energy systems which are specially adapted for the use of biofuels and products, and the services on which they depend.
Biomass & waste
Electricity and/or heat produced with bio-based feedstocks, typically through incineration but also through more advanced processes like gasification or anaerobic digestion. This sector also includes waste-to-energy which includes energy produced through landfill gas projects and incineration of municipal and industrial waste.
Energy smart technologies
This sector covers technologies like digital energy, smart grids, power storage, hydrogen and fuel cells, advanced transportation and energy efficiency on both the demand and supply side.
Includes small hydro – hydro projects with capacities smaller or equal to 50MW; geothermal – extraction of useful power from heat stored in the earth; marine – the extraction of tidal, wave and thermal energy from the ocean.
by ‘Stop These Things‘, August 14, 2018
Germany’s wind and solar experiment has failed: the so-called ‘Energiewende’ (energy transition) has turned into an insanely costly debacle.
German power prices have rocketed; blackouts and load shedding are the norm; and its idyllic countryside has been turned into an industrial wasteland, with its forests, no exception (see above).
Hundreds of billions of euros have been squandered on subsidies to wind and solar, all in an effort to reduce carbon dioxide gas emissions. However, that objective has failed too: CO2 emissions continue to rise.
by P. Gosselin, July 5, 2018 in NoTricksZone
A new German paper assesses wind energy in Europe . The results are devastating. It concludes that wind energy requires almost 100% backup and that the more capacity that gets installed, the greater the volatility.
The paper appearing at the VGB, authored by Thomas Linnemann and Guido Vallana, finds that “the total wind fleet output of 18 European countries extending over several thousand kilometers in north-south and east-west direction is highly volatile and exhibits a strong intermittent character.”
In other words the power supply across the European grid fluctuates wildly and thus cannot work well. The paper’s abstract continues: …