Princeton Researchers Find a Lower-Energy Route to Fusion Ignition

A new model for nuclear fusion has potentially discovered a significantly more energy-efficient way to achieve nuclear fusion, and flipped everything we thought we knew about the fusion process.

The scientists’ modelling also flips the traditional order of operations for managing and sustaining plasma in a controlled fusion experiment.

Traditionally, fusion processes start by compressing plasma for higher density, and then heating it to superhot temperatures.

However, new modelling from the United States Department of Energy’s Princeton… Home Oil Prices Oil Futures Rig Count Energy Energy-General Oil Prices Crude Oil Heating Oil Gas Prices Natural Gas Coal Company News Interviews Geopolitics Alternative Energy Nuclear Power Solar Energy Hydroelectric Renewable Energy Geothermal Energy Wind Power Fuel Cells Tidal Energy Biofuels Environment Global Warming Oil Spills Company News Breaking News Premium Articles My Account Get Exclusive Intel All Prices OPEC Blends Canadian Blends U.S.

Blends WTI Crude • 11 mins 95.26 +1.12 +1.19% Brent Crude • 11 mins 107.0 +1.28 +1.21% Murban Crude • 16 mins 110.6 -1.67 -1.49% Natural Gas • 11 mins 3.329 +0.046 +1.40% Heating Oil • 11 mins 4.971 +0.037 +0.74% Gasoline • 12 mins 3.262 +0.012 +0.36% Click Here for 150+ Global Oil Prices Gasoline • 12 mins 3.262 +0.012 +0.36% Heating Oil • 11 mins 4.971 +0.037 +0.74% WTI Midland • 4 hours 94.82 +0.15 +0.16% Opec Basket • 6 days 114.0 +4.53 +4.14% Indian Basket • 7 days 121.1 +3.47 +2.95% Click Here for 150+ Global Oil Prices Haley Zaremba is an energy journalist and researcher with more than a decade of professional experience covering global energy systems, land and natural resources, and… A new model for nuclear fusion has potentially discovered a significantly more energy-efficient way to achieve nuclear fusion, and flipped everything we thought we knew about the fusion process.

The scientists’ modelling also flips the traditional order of operations for managing and sustaining plasma in a controlled fusion experiment.

Traditionally, fusion processes start by compressing plasma for higher density, and then heating it to superhot temperatures.

However, new modelling from the United States Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) shows that reversing this order of operations could drastically reduce the energy inputs necessary to achieve ignition.

Ignition refers to when a fusion experiment creates more energy than it consumes.

To date, this has been the biggest and most elusive challenge of achieving fusion – the process which powers our own sun – here on Earth.

The first ever successful ignition was achieved in 2022 at California’s Lawrence Livermore National Laboratory.

And while this achievement has been repeated and other instances of ignition have occurred, the sector is still a far cry from creating enough net energy to be anywhere close to practical and commercial application.

Unlocking the secret to commercially scalable nuclear fusion would solve much of the world’s energy problems essentially overnight.

Fusion provides a near-limitless source of clean energy and yields none of the hazardous and radioactive spent nuclear fuel associated with nuclear fission.

It’s therefore viewed as a ‘holy grail’ of clean energy .

This is why finding more energy-efficient pathways toward ignition is such a big deal, even if they are – at this point – purely theoretical.

But the team at PPPL didn’t just discover how to make fusion easier.

They also discovered a way to make fusion much, much more difficult – and found that it could be a major stumbling block for many of the nuclear fusion experiments and startups racing to achieve commercial nuclear fusion.

The team found that the incorporation of just a tiny amount of the element tungsten in the fusion process – as small as one part of tungsten in 10,000 within the plasma – could cause the pressure needed to achieve ignition to double, creating major issues for efficiency and stability.

This is highly relevant for many next-gen fusion experiments which use tungsten in the design of their reactors.