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Lappeenranta-Lahti University of Technology säger att det är helt ställt utom tvivel att de problem med kapacitet och stabilitet i ett helt förnybart produktionssystem av el är möjligt redan nu och att det går att införa fram till år 2050.
www.helsinkitimes.fi/themes/themes/science-and-technology/22012-researchers-agree-the-world-can-reach-a-100-renewable-energy-system-by-or-before-2050.html
"Research from LUT University and 14 additional leading international universities suggest that the new system would be based largely on solar and wind energy, energy storage, sector coupling, and direct and indirect electrification of almost all energy demand.
An energy system that is 100% based on renewables has emerged to become scientific mainstream.
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“A quickly increasing number of researchers conclude that the entire energy system demand can be met based on renewables, and that doing so will actually be cheaper in the long term, while fulfilling sustainability requirements”, professor Christian Breyer from LUT University concludes.
Key pillars of this new energy system are solar and wind energy, energy storage, sector coupling, and electrification of all energy and industry sectors implying power-to-X and hydrogen-to-X solutions, complemented by upcoming carbon dioxide removal to help stabilize the climate. The topical review is entitled “On the History and Future of 100% Renewable Energy Systems Research” and published in IEEE Access.
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Initially, the research of 100% renewable energy systems encountered strong skepticism. Now, leading researchers of the 100% renewable energy systems research community have combined their views. The article reflects the development of the research field, the present status, the past critique, and provides an outlook on future research needs. More than 20 authors from 15 organizations and 9 countries contributed to this joint research.
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Major critiques against 100% renewable energy system research centre on energy return on investment (EROI) for renewables, variability and stability of the system, costs, raw material demand, and community disruption. These aspects are directly addressed, and it is shown that they are either a topic of the past, or that solutions exist so that none of these aspects should be regarded as a showstopper.
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“The technologies are already there. The substantial evidence presented is already also empirical evidence in several regions and countries. The ability to exploit synergies across energy efficiency, electrification, district heating and electrofuels is certainly proven. Now decision makers have to stop all new investments in fossil fuels and focus on creating renewable energy based smart energy systems“, says Brian V. Mathiesen, Aalborg University, Denmark.
According to these 15 leading universities, companies, NGOs, and governments need to work together in order to foster the public engagement that is needed to implement distributed sustainable energy systems. Researchers say that local ownership, governance, and market models must be developed to fit with the different context and cultural traditions around the globe."
