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Mechanical Engineering. 2019;141(01):31-35. doi:10.1115/1.2019-JAN-1.
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A number of startups have attracted millions of dollars from tech investors with the goal to buld a commercial fusion reactor by the end of the next decade. Befitting the merging of plasma physics and startup culture, each company has a bit of secret sauce that they hope will make the difference between success and failure.

This article takes a look at three such startups that are pushing the limits of energy.

Commentary by Dr. Valentin Fuster
Mechanical Engineering. 2019;141(01):36-41. doi:10.1115/1.2019-JAN-2.
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Concentrated solar plants have been designed to store thermal energy so as to produce power after sundown, but heat storage should also be of interest to operators of nuclear power plants. Adding heat storage to light-water reactors is the enabling technology for a carbon-free electricity industry based on solar, wind, and nuclear power. And it can accomplish this with little disruption to the operations of existing nuclear plants. This article delves into the current heat storage technologies that are at various states of readiness to be deployed.

Commentary by Dr. Valentin Fuster
Mechanical Engineering. 2019;141(01):42-47. doi:10.1115/1.2019-JAN-3.
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The first live test is underway off Maine for a new technology that relies on strong tides and currents to power underwater generators. It took innovative engineering and precision execution to make the first test happen, but it could open the door to a new renewable energy source. In Europe, South American and Japan, which have expensive grid power costs, tidal energy is expected to become competitive. This article delves deeper into the engineering behind underwater turbines.

Commentary by Dr. Valentin Fuster

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