Are Renewable Energies Pushing Back Fossil Fuels?

Renewable energies are part of the energy transition as the preferred alternative to fossil fuels. Critics claim that the growth of renewable energy does not allow any decline in the use of gas, oil and especially coal. They denounce support for new sectors such as wind power and photovoltaic.

In reality, there are two conditions for this substitution between fossil and renewable energies. The first is that renewables grow fast enough. This is the case today at the global level. But this movement, which is very recent and most evident in electricity, cannot produce immediate effects on the scale of the entire energy system. It will take a few years for renewables, thanks to the level of deployment they can claim, to have the capacity to transform the global energy balance.

The other condition, independent of the energy source, is to prevent global demand from growing faster than renewable growth. The control of consumption must, therefore, progress further to allow renewables, which are part of the effort, to make this transformation.

The rise of renewable energies, on which all observers agree, would it be a complete waste? For some actors, the support they receive is highly questionable, particularly about nuclear power, with which they would be competing to produce carbon-free energy. One of their main arguments is that the impact of renewable energy growth on the evolution of fossil fuels is negligible.

For example, according to BP 1 annual global energy balances, fossil fuel primary energy consumption increased much faster than renewable energy use between 2000 and 2014.

The Acceleration Of Fossil Energies

To analyze current trends, we must start by putting them into perspective. The reasoning proposed to disqualify the contribution of renewable energies is based on the idea that it constitutes the central evolution of the energy system since the beginning of the 2000s, and that this growth should have already led for several years to significant changes in the mix global energy.

There are two things in particular. First, the consumption of fossil fuels, all resources combined, accelerated: driven by steady growth in global energy demand, its growth was almost twice as strong in the second period than in the first one. The second observation is that the balance between fossil fuels has changed significantly. For example, coal, which was thought to be declining at the end of the last century, accounted for only 14% of the increase in fossil fuels between 1985 and 2000. But, in particular, due to the development of its use in emerging countries, it accounted for 39% of the increase in fossil fuels between 2000 and 2015. In absolute terms, growth was 4.8 times faster in the second period than in the first. At the scale of the world energy system, the most striking fact of the period 2000-2015 is therefore not the development of renewable energies but a second acceleration: that of energy consumption in general, and that of coal in particular.

A Role Of Renewables Increasingly Significant

Given the current dynamics, going back to 2000 to measure a cumulative evolution does not allow observing the recent impact of renewable energies really. Thus, the negative image associated with the development over the period 2000-2015 is nuanced or even reversed when one focuses on the last years.

Between 2000 and 2015, the increase in primary consumption of fossil fuels (still in the sense of BP) was five times faster than that of the equivalent primary use of renewable energies. Over the period 2010-2015, the ratio is only 2.3, reflecting the ongoing rebalancing dynamic.This dynamic even seems to be reversed: between 2014 and 2015, the ratio between the increase in fossil fuels and that of renewable energies (still in the sense of the BP balance sheet) was only 1.1 In 2015, the increase in primary equivalent of so-called “non-carbon” energies was for the first time greater than that of “carbon” energies, with 64.5 Mtoe of growth compared with 62.1 Mtoe. In non-carbon strengths, most of the increase comes from renewables, with 56.9 Mtoe, compared to 7.6 Step in nuclear power.

A Specific Impact On Electricity

This latest rebalancing is due as much to the development of renewable energies as to the significant decline in coal in 2015 of 71.3 Mtoe (see Figure 7 above). Although consolidated electricity data are not available at this stage in 2015 to support this assumption, it appears that this sector accounts for most of this decline. According to some estimates, coal-based power generation could have declined by more than 300 TWh between 2014 and 2015. In other words, the deployment of photovoltaic and wind power would now reach a level sufficient to allow a decline Coal-based electricity generation:

It is more specifically in the electricity sector that it is most relevant to measure the impact of new renewable energies, mainly if we focus on wind and photovoltaic power. It establishes, and more clearly, the same observation as on the whole of energy: measured by five-year increments over the period 2000-2014 6, the evolution of world production by energy shows a transfer from growth dynamics to renewable energy. Between 2000 and 2005, the growth of electricity generated by thermal power plants was almost five times greater than that of heat from renewable sources.

This dynamic is even more pronounced considering the last year for which global electricity production statistics are available, i.e., 2014.Electricity generation based on fossil fuels increased in this year by around 34 TWh, by far the smallest annual increase since 2000 (except the recession observed between 2008 and 2009). Electricity based on fossil fuels represents only 11% of the increase in total production compared to 2013. Renewable generation, which increased by 219 TWh, contributed to 72% of this growth. Between 2013 and 2014, wind generation grew four times more than coal-based production and photovoltaic product 2.6 times more. It is estimated that in 2015, wind power doubled its rate of growth.

HPC Moved To Advanced Source Of Renewable Energy Provided By Florida

florida renewable energy

With hundreds of Florida renewable energy companies, finding the best one is not an easy task to find the one that will source us a better and efficient renewable solar energy. In fact, a renewable energy plan will help take your green efforts a step further. Your house already turned a green leaf when you started recycling, composting and consuming more sustainable foods. Renewable energy is green, environmentally-friendly, and helps save your energy bills over time. The right renewable energy company will help you with the best plan to suit your needs and budget at the same time. Here are some tips to consider when choosing the best florida renewable energy companies.

In order for the energy companies to plan for your supply needs, they should know how much energy you use during the year. The first thing is to know your annual usage. Once you know that, you can start to search for a reputable list of green energy suppliers in the area. The internet is a great place to start your search in this regard. There are many companies that operate in the area. Make sure that you perform a background search on each of these companies before selecting the best one. The above read offers information on how to select the best renewable energy service in Florida. Here’s a short clip to understand what is a renewable energy.

How HPC Can Help? Leadership Systems and Leadership Science

High-performance computing can provide an edge to American entrepreneurs and companies and hasten the implementation of crucial new technologies by substantially reducing development time and cost. The United States is a world leader in high-performance computing and advanced simulation applications. By testing a new concept or product in virtual space, HPC modeling and simulation dramatically reduces the number of physical prototypes necessary to bring a product to market. By shortening the development window, HPC gives American companies an edge in an increasingly competitive global marketplace.

Companies such as Boeing, Goodyear and Siemens have all used HPC modeling and simulation to develop new and innovative products. Boeing used high-performance computing to reduce the number of wing prototypes from 77 in previous aircraft models to just 7 for the 787 Dreamliner. Goodyear partnered with Sandia National Laboratory to reduce development time and cost for their all-season tire TripleTred Technology. Siemens is partnering with Lawrence Livermore National Laboratory to create detailed wind forecasting models to improve the efficiency of individual wind turbines and the performance of entire wind farms.

Our national laboratory system can provide HPC modeling and simulation expertise and capabilities found few places in the world. Whether creating detailed theoretical equations or writing the millions of lines of code that allow these supercomputers to make increasingly precise predictions on product performance, the scientists and engineers at these laboratories can help spur American innovation, entrepreneurship and competitiveness.

INCITE is a peer-review allocation program to award time on the US Department of Energy’s leadership-class supercomputers that enables researchers around the country to carry out unprecedented scientific and engineering simulations.

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