Foresight study on the worldwide developments in advancing #FusionEnergy, including the small scale private initiatives
This study provides an analysis of the leading public and private fusion initiatives globally which has been used to generate 4 foresight scenarios for fusion development
The study provides a picture of the most common challenges and barriers to fusion development as well
Most of insights were based on the results of survey undertaken in collaboration with @Fusion_Industry in 2022
Only a few of the interviewees had given significant thoughts about possible LCOE
However, a handful of firms were clear on the range of LCOE they wanted to target, where they would expect to be competitive in market, with target of around USD 50/MWh the most common marker
CAPEX of pilot plants were also mentioned by some initiatives, ranging from a few hundred M euros to up to 10 B euros
Variations are very high, based not only on approach but also the size and characteristics of the plant, with capital costs scaling with planned MW capacity
There was little estimation of potential OPEX, as many parameters are not yet well known – however these are expected to be low in any case, with the capital cost by far the major part of the total cost of a fusion plant
Fuel costs are unclear, in the case of Tritium a major expectation is that beyond acquiring a seed amount of tritium to start-up reactors should breed the own supply in the fusion reaction
Costs and replacement cycles for major components, e.g., if breeding blankets or wall materials would need to be replaced every 10-20 years, were also unclear, but could constitute an important OPEX cost element
Among main recommendations:
1) Experience from @iterorg strongly recommends that industrial players and engineering systems integrators are involved in the DEMO design activities
This should help to reduce risks of delays and cost overruns
2) ensure that a positive decision is taken on funding @IFMIF_DONES and that work is coordinated with other countries which also work on materials (UK, US, China) and with potential partners (Japan)
3) to promote more private fusion initiatives in Europe, it is needed to create programmes similar to ARPA-E and INFUSE
Further research would be beneficial to specify key parameters of such a programme and how it could work in the Horizon funding framework
4) @EU_Commission should ensure that fusion is included within scope of relevant EU funding programmes, strategies & modelling exercises
f.e. EU Taxonomy for Sustainable Finance, ensuring fusion is specifically listed as a sustainable investment, separate from nuclear fission
5) Linked to visibility, @EU_Commission should also be careful to support messaging on fusion that encourages a positive public perception, avoiding strong links to nuclear fission👀
6) @EU_Commission should push for regulatory agencies to develop their approaches on regulation for fusion to provide clarity for the sector
7) @EU_Commission should continue to work via international agencies, e.g., @iaeaorg, to seek to harmonised regulatory approaches to fusion globally
8) examine how the EU could leverage its expertise in laser technologies to create a public inertial fusion energy programme – this would help to accelerate progress in this area beyond what is happening at @lasers_llnl and elsewhere
9) supporting EU industry to be well positioned – either as fusion energy developers, or as key suppliers to leading fusion initiatives, is crucial to fully benefit from eventual fusion energy commercialisation
The most critical aspect of tokamak power plants is their pulsed duty cycle, which includes long plasma-burn phases followed by fast dwells to remove ashes and dusts from the reactor chamber and re-load the central solenoid
Stellarators with blankets utilizing Pb-17Li as breeder and coolant can reach a maximum operating temperature of 1100 °C
This allows to reach a high power conversion efficiency, due to possible coupling with a Brayton–Rankine Combined Cycle (CC)
This week we got deep analysis of possible #FusionEnergy cost valuation with @JesseJenkins in the authors' list!🙀🙀🙀
While it is difficult to determine cost of a particular design when much of underlying fusion technology has yet to be developed, it is possible to set cost targets by determining the value of a design with a particular set of operational parameters in a simulated future scenario
This is the first study of the equilibrium value of fusion at various levels of capacity penetration for the United States, and the first investigation of the value of integrated thermal storage for fusion plants in an hourly model
Let's talk about fundamentals of #FusionEnergy: plasma energy balance and Lawson criterion
Plasma energy balance is determined by the energy sources feeding the plasma and the energy losses cooling it down
For the plasma to remain stationary, the energy balance must be in equilibrium, i.e. the sources must compensate the losses
The total power produced by the D-T fusion reaction Pfusion is divided between the products of the reaction, the alpha particles, i.e. the helium nuclei (He), and the neutrons
Exascale supercomputers are exactly what current fusion research needs, explains Dr. Choongseok “CS” Chang, lead PI of multi-institutional multi-disciplinary U.S. SciDAC Partnership Center for High-fidelity Boundary Plasma Simulation, headquartered at @PPPLab
One of the biggest current challenges is making accurate predictions about the processes that occur inside tokamak reactors, which use giant magnetic fields to confine plasma fuel in a torus shape to achieve the conditions necessary for fusion
To advance this science, Chang’s team is preparing to use the Aurora Exascale supercomputer, the country’s first Intel-architecture-based exascale HPC system that will be deployed at the U.S. Department of Energy’s (DOE) Argonne National Laboratory
Radiative pulsed L-mode operation in ARC-class reactors - fresh one from @CFS_energy and @MIT_Fusion
Enhanced confinement & internal transport barriers create large pressure gradients providing significant bootstrap current fractions. High confinement time allows minimization of plasma current improving stability while also reducing external current drive requirements needed
Recently, high temperature superconductor (HTS) technology has dramatically increased achievable on-axis magnetic field in reactor designs. Since fusion power density scales, this technological advancement provides opportunities to improve self-consistent reactor scenarios