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molten salt

New nuclear power for New York

July 9, 2025 By EarthWise Leave a Comment

New nuclear power plant is coming in New York

Nuclear power has been around since the 1950s, but it has fallen out of favor in recent decades, in part due to a couple of traumatic disasters at nuclear power plants.  In fact, only two new nuclear power plants have been built in the US in the past 30 years, and they took a very long time and an enormous amount of money to build.

However, in recent times there has been a great deal of developmental work on nuclear power.  Such newer technologies as small modular reactors, molten salt reactors, light water reactors, and more hold promise for safer, less expensive, and higher performance nuclear power.

In late June, New York Governor Kathy Hochul announced that she has instructed the New York Power Authority to develop and construct a zero-emission advanced nuclear power plant in Upstate New York.  The plant is to produce 1 GW of power, about half of what the decommissioned Indian Point Power Plant produced when it provided significant amounts of power to New York City residents.

Renewed interest in nuclear power has emerged in part because of the soaring electricity demand from AI data centers.  Companies like Amazon, Google, and Microsoft have all begun investing in nuclear power for this reason.

NYPA is instructed to begin evaluating technologies, business models, and locations for the new power plant and will seek to secure key partnerships needed for the project.  As things stand, it is not known what technology the plant will use, where in Upstate New York it will be located, how much it will cost to build, who will pay for it, and how long it will take to build. 

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New York Again Embraces Nuclear Power With Plans to Build New Plant

Photo courtesy of Constellation Energy.

Earth Wise is a production of WAMC Northeast Public Radio

New approaches to nuclear power

November 18, 2024 By EarthWise 1 Comment

Researchers explore new approaches to nuclear power

The US is the world’s largest user of nuclear power.  Its 94 reactors supply nearly 19% of the country’s electricity. But the number of U.S. reactors has steadily fallen over the past 30 years and new nuclear power plants are a real rarity.  The reasons are a combination of perceived dangers following several nuclear accidents and the increasing costs associated with building plants that can meet a growing number of regulatory requirements.

There are recent developments associated with new advanced reactor technologies that may lead to a resurgence in the use of nuclear power.  Bill Gates’ energy company TerraPower is developing nuclear reactors that use sodium instead of water for cooling.  Such reactors operate at lower pressures and higher temperatures.  

Meanwhile, Kairos Power, a California-based energy company, has entered into an agreement with Google to build multiple small modular nuclear reactors that will supply electricity to that giant tech company.  The modular reactors use a molten-salt cooling system combined with a ceramic, pebble-type fuel in order to transport heat to a steam turbine to generate power.  The novel design of these reactors can reduce construction timelines, allow deployment in more places, and make final project delivery more predictable.

Surveys indicate that a majority of Americans favor the use of nuclear power, which has the advantages that it doesn’t create greenhouse gas emissions and can run 24-7.  But traditional nuclear power plants are too expensive and have too many potential problems.  These new nuclear power technologies may be the answer for allowing nuclear power to play an important role in the future energy system.

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New nuclear clean energy agreement with Kairos Power

Photo, posted May 16, 2016, courtesy of Steve Jurvetson via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Major Funding For Novel Energy Storage | Earth Wise

October 21, 2021 By EarthWise Leave a Comment

The accelerating adoption of wind and solar energy is driving a growing interest in energy storage technologies.  An electric grid dominated by intermittent power sources will need large-scale energy storage.  Grid-scale energy storage is expected to increase at least 10 times over the next decade and this will require nearly $300 billion in investments over that time period.

Much of the effort in energy storage has focused on battery storage.  But there are other storage technologies that are attracting attention and investment.

Energy Vault is a Swiss-based company specializing in gravity and kinetic energy-based energy storage.  Their technology uses a multi-headed crane to store energy generated by renewable sources by stacking heavy blocks made of composite material into a tower, capturing potential energy from the elevation gain of the blocks.  To produce electricity, the crane lowers the blocks to the ground, driving generators in the process.  The company has just raised $100 million in funding from investors. 

Malta, Inc. is an energy storage company based in Cambridge, Massachusetts that is developing an electro-thermal energy storage system.  Energy generated from renewable (or other) sources drives a heat pump to create thermal energy producing both hot and cold reservoirs.  The heat is then stored in molten salt while the cold is stored in a chilled liquid.  To generate electricity, the temperature difference between the two reservoirs is used to drive a heat engine.  Malta has recently raised $60 million in new funding including significant support from Chevron Energy Ventures.

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Energy Vault Raises $100 Million In Series C Funding

Chevron backs long-duration thermal energy storage developer Malta

Photo, posted October 16, 2019, courtesy of Jonathan Cutrer via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

A Giant Solar Thermal Plant For Australia

October 23, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/10/EW-10-23-17-A-Giant-Solar-Thermal-Plant.mp3

A project planned for sunny South Australia will be the world’s largest single solar thermal power plant when it comes on line in 2020.   The Aurora Solar Energy Project will have a capacity of 150 MW, which is enough to supply 90,000 people with electricity.

[Read more…] about A Giant Solar Thermal Plant For Australia

Solar Power 24/7

September 5, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/08/EW-09-05-16-Solar-Power-24-7.mp3

The biggest challenge facing both solar and wind power sources is that they don’t produce power around the clock; they only work when the sun is shining or the wind is blowing.  As a result, they don’t quite measure up to the requirement for power on demand.

[Read more…] about Solar Power 24/7

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