Archives par mot-clé : Nuclear Energy

Net-Zero Carbon Dioxide Emissions By 2050 Requires A New Nuclear Power Plant Every Day

by Roger Pielke, Sep. 30, 2019 in WUWT


I research and write about science, policy and politics.

More than a decade ago, Gwyn Prins and Steve Rayner characterized climate policy as an “auction of promises” in which politicians “vied to outbid each other with proposed emissions targets that were simply not achievable.” For instance, among Democrats competing for the presidency in 2020, several, including Joe Biden, have committed to achieving net-zero carbon dioxide emissions by 2050. Candidate Andrew Yang bid 2049, and Cory Booker topped that by offering 2045. Bernie Sanders has offered a 71% reduction by 2030.

One reason that we see this “auction of promises” is that the targets and timetables for emissions reductions are easy to state but difficult to comprehend. Here I’ll present what net-zero carbon dioxide emissions for 2050 actually means in terms of the rate of deployment of carbon-free energy and the coincident decommissioning of fossil fuel infrastructure.

To conduct this analysis I use the BP Statistical Review of World Energy, which presents data on global and national fossil fuel consumption in units called “million tons of oil equivalent” or mtoe. In 2018 the world consumed 11,743 mtoe in the form of coal, natural gas and petroleum. The combustion of these fossil fuels resulted in 33.7 billion tonnes of carbon dioxide emissions. In order for those emissions to reach net-zero, we will have to replace about 12,000 mtoe of energy consumption expected for 2019. (I ignore so-called negative emissions technologies, which do not presently exist at scale.)

Another useful number to know is that there are 11,051 days left until January 1, 2050. To achieve net-zero carbon dioxide emissions globally by 2050 thus requires the deployment of >1 mtoe of carbon-free energy consumption (~12,000 mtoe/11,051 days) every day, starting tomorrow and continuing for the next 30+ years. Achieving net-zero also requires the corresponding equivalent decommissioning of more than 1 mtoe of energy consumption from fossil fuels every single day.

Another important number to consider is the expected increase in energy consumption in coming decades. The International Energy Agency currently projects that global energy consumption will increase by about 1.25% per year to 2040. That rate of increase in energy consumption would mean that the world will require another ~5,800 mtoe of energy consumption by 2050, or about another 0.5 of an mtoe per day to 2050. That brings the total needed deployment level to achieve net-zero emissions to about 1.6 mtoe per day to 2050.

 

The scale of the challenge to achieve net-zero carbon dioxide emissions in 2050. Roger Pielke Jr., BP 2018

Fermeture ou prolongation de la durée de vie des centrales nucléaires : quelles conséquences économiques et environnementales ?

by Prof.  Ernest Mund, 25 juin 2019 in ScienceClimatEnergie


A la façon dont vont les choses il paraît de plus en plus certain que la Belgique mettra la clé sous le paillasson de son parc de centrales nucléaires en 2025, conformément à la décision de la loi Deleuze votée en 2003. Cet abandon très néfaste est la conséquence du manque de discernement de la part des Autorités politiques au pouvoir face à l’hostilité irréductible du mouvement écologiste à l’égard du nucléaire.

Que cet abandon soit très néfaste est argumenté avec énormément de détails dans un rapport récent de l’IEA (Agence Internationale de l’Energie) dont plusieurs éléments chiffrés sont utilisés dans cette note [1]. Ce rapport analyse avec grande acuité le déclin du nucléaire en service, conçu au cours des années 70. A cette époque le système électrique était centralisé avec une intégration verticale de ses différentes composantes et le prix de l’électricité était le reflet des coûts, indépendamment de toute considération relative à une logique de marché. La taille des installations visait à la réduction des coûts par effet d’échelle. Ce nucléaire (de Génération-II et -III) est devenu totalement inadapté au système décentralisé actuel, alimenté pour une part rapidement croissante en sources d’énergie renouvelable intermittentes (EnRI, éolien et solaire) avec un prix de l’électricité relevant d’un marché, institué dans le courant des années 90.

Énergie nucléaire : « SMR » (petits réacteurs modulaires)

by Connaissance des Energies, 29 avril 2019


À RETENIR
  • Les Small Modular Reactors (SMR) sont de petits réacteurs nucléaires réalisés en usines sous forme de modules.
  • Leur puissance varie généralement entre 10 et 300 MW.
  • Le déploiement des SMR est envisagé pour produire de l’électricité, en particulier dans des sites isolés, mais également pour des applications non électrogènes : chaleur, dessalement, production d’hydrogène, propulsion, etc.
  • Fin 2018, on dénombre une cinquantaine de projets de SMR, avec de nombreuses technologies à l’étude.

Les modules SMR » de NuScale Power pèseront près de 700 tonnes et pourront être transportés par camion ou par barge. (Image provided by NuScale Power, LLC)

Nuclear Power Can Save the World

by J.S. Goldstein et al., April 6, 2019


As young people rightly demand real solutions to climate change, the question is not what to do — eliminate fossil fuels by 2050 — but how. Beyond decarbonizing today’s electric grid, we must use clean electricity to replace fossil fuels in transportation, industry and heating. We must provide for the fast-growing energy needs of poorer countries and extend the grid to a billion people who now lack electricity. And still more electricity will be needed to remove excess carbon dioxide from the atmosphere by midcentury.

 

Nuclear power excluded from EU’s green investment label

by C. Stam & A. Prager, April 3, 2019 in EurActiv


The text voted in Parliament also excludes fossil fuels and gas infrastructure from the EU’s proposed green finance taxonomy, which aims to divert investments away from polluting industries into clean technologies.

In a bid to prevent “green-washing”, the Parliament text also requires investors to disclose whether their financial products have sustainability objectives, and if they do, whether the product is consistent with the EU’s green assets classification, or taxonomy.

While activists applauded the move, they said the classification voted by the European Parliament was too narrow and applies only to a limited set of recognisable green assets, such as wind and solar power companies.

“Brown list” rejected

An amendment to publish a “brown list” to name and shame investments seen as damaging for the environment was rejected by Parliament.

‘L’impossible équation des écologistes’

by Prof. Ch. Leclercq-Willain, 5 avril 2019 in ScienceClimatEnergie


Depuis plusieurs années un des combats mené par les écologistes dans différents pays européens (Allemagne, France, Belgique, ..) fut et reste celui du nucléaire mené actuellement en parallèle avec celui de la réduction des gaz à effet de serre (GES). Les « verts » allemands ont obtenu la fermeture de presque toutes les centrales nucléaires et l’Allemagne a toujours une exploitation importante de centrales gaz-charbon. L’Allemagne est ainsi le plus grand émetteur de CO2 en Europe. Il en est de même des pays de l’Est et de la Russie qui exploitent essentiellement des centrales gaz-charbon. En Belgique, la fermeture définitive des centrales nucléaires est prévue pour 2025.

China-built nuclear reactors may enjoy home advantage as delays and costs stymie foreign competitors

by Bloomberg, April 2, 2019 in SouthChinaMorningPost


China’s home-grown nuclear technology is gaining favour in the battle for the nation’s next generation of reactors, according to a state-owned developer, as it sought to recover from delays and cost blowouts from imported designs.

China’s reactor, known as the Hualong One, will be faster and easier to repair and maintain than competing foreign designs because it will be made at home, according to Chen Hua, chief executive officer of China National Nuclear Power company (CNNP), which builds and operates nuclear power projects.

“We prefer the Hualong One,” Chen said on Monday at a nuclear energy conference in Beijing.

The global nuclear industry has been awaiting a revival in China after cost overruns and stricter regulation after the 2011 Fukushima disaster in Japan stalled the approval and construction of more units.

Climate Scientists Reject Wind And Solar, Demand Nuclear-Powered Future

by Stop These Things, November 20, 2108 in ClimateChangeDispatch


In the climate alarmists’ worldwide crusade against carbon dioxide gas, only the most delusional still believe that wind and solar power add anything to their arsenal.

As we have said repeatedly, nuclear power is the only stand-alone power generation source which is capable of delivering power on demand, without CO2 emissions being generated in the process.

Perversely, notwithstanding that Australia is in the top three uranium exporters, it’s the only G20 country with a legislated prohibition on nuclear power generation…

Global nuclear power capacity expected to reach 536GW by 2030

by GlobalData Energy, October23, 2018


Nuclear technology is a major base-load power-generating source and accounted for 10.5% of global power generation in 2017 as per GlobalData, a leading data and analytics company.

The nuclear power sector is growing in many countries as demand for electricity increases. The company’s latest report ‘Nuclear Power – Thematic Report’ reveals that some 31 countries are currently operating nuclear reactors for their electricity generation. Countries with significant nuclear power capacity are the US, France, Japan, China, Russia, South Korea, Canada, and Ukraine, with more than ten gigawatts (GW) installed capacity each. Germany, the UK, Sweden, India, Spain, Belgium, and Taiwan have five to ten GW installed nuclear power capacity each.

The global cumulative installed nuclear power capacity in 2010 was 376GW, of which more than 100GW was in the US alone.