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You are here: Home / Archives for market forces

market forces

A record year for solar and batteries

March 20, 2025 By EarthWise Leave a Comment

According to a recent forecast from the U.S. Energy Information Administration, solar panels and batteries will account for more than 80% of new power capacity installed in the U.S. this year.  The record growth of these technologies is hastening the decline of coal power in this country.

Solar power alone will account for more than half of the country’s new power capacity and most of it will be in Texas and California.

Wind power is expected to provide only 12% of new capacity this year.  Wind is facing rising costs, lengthy permitting, public backlash, and clear opposition from the Trump administration which is determined to stifle its growth.

As renewable energy grows, coal power continues to decline.  The U.S. will retire twice as much coal power this year as it did last year, closing about 5% of the country’s capacity.  Not only are older coal plants shutting down; the remaining plants are generating less power.

One of the most significant changes in technology over the last few decades has been the massive drop in the cost of clean energy.  Solar photovoltaic costs have fallen by 90% in the past decade, onshore wind by 70%, and batteries by more than 90%.  The connection between cost reduction and volume has been very strong:  costs of these technologies have fallen by around 20% every time global cumulative capacity doubles.   Over the past 40 years, solar power has transformed from one of the most expensive electricity sources to the cheapest in many countries.  That trend is likely to continue.  Setting politics aside, market forces generally are the strongest driver.

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U.S. Solar and Batteries Headed for Record Year

Photo, posted December 16, 2024, courtesy of Bureau of Land Management California via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Coal In The UK And Asia | Earth Wise

August 20, 2021 By EarthWise Leave a Comment

Coal power is in a permanent decline

Coal was the driving force of the British industrial revolution beginning in the 18th century.  Coal was used for manufacturing iron, heating buildings, driving locomotives, and more.  Annual coal production in the UK peaked in the year 1913 at 316 million tons.  Until the late 1960s, coal was the main source of energy produced in the UK.

Recently, Britain announced that it plans to phase out coal power entirely by October 2024, one year earlier than its previous target date.  This is on the heels of a dramatic decline in coal usage over the past decade.  In 2012, coal accounted for 40% of the UK’s power generation.  By 2020, that number was 1.8%.

In both Europe and the United States, coal power is generally significantly more expensive than renewable power from the sun and wind.  As a result, market forces have driven the demise of coal power in those places.

The situation is different across much of Asia where coal power remains cost competitive.  Five Asian countries – China, India, Indonesia, Japan, and Vietnam – still have plans to build more than 600 new coal-fired power plants, which is bad news for the environment.  In 2020, China produced more than half of the world’s coal power, which reflects both the growth of coal in Asia and its decline in the U.S. and Europe.

Despite all this, experts predict that it will be more expensive to run almost all coal plants globally than to build new renewable energy projects by the year 2026.  Sooner or later, coal power will no longer make its unfortunate contributions to the world.

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UK Aims to Dump Coal Early, While Asia Stays the Course

Photo, posted March 8, 2021, courtesy of Stanze via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Insanely Cheap Energy | Earth Wise

June 11, 2021 By EarthWise Leave a Comment

Solar power is cheapest energy option in most places

The International Energy Agency, founded in 1974, keeps track of the world’s energy systems and anticipates how they are likely to change over time.  Policymakers around the world look to the agency’s annual World Energy Outlook publication for guidance.

In 2000, the agency made the prediction that by the year 2020, there would be a total of 18 gigawatts of photovoltaic solar power installed.  Within seven years, that number was already too small.

The IEA was not the only source to miss the mark on solar power.  The head of solar analysis at BloombergNEF in 2005 expected solar to eventually supply 1% of the world’s electricity.  It is already 3% and Bloomberg now predicts that it will be 23% by 2050 and expects that to be an underestimate. 

What has happened is that the world has unexpectedly gotten to the point where solar is the cheapest source of energy in most places.  Over the past decade, every time solar production capacity has doubled, its cost has dropped by 28%.

Historically, a combination of groundbreaking research in Australia and intense Chinese industrial development led to the creation of a massive new industry.  When Germany passed laws encouraging the use of solar power, suddenly there was massive global demand and a struggle to keep up with supply.

The industry had its fits and starts, and many players fell by the wayside.    But at this point, solar technology continues to get better and cheaper.  Market forces are pretty hard to beat and when solar technology can supply insanely cheap energy, it is going to be used in more and more places.

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‘Insanely cheap energy’: how solar power continues to shock the world

Photo, posted January 10, 2020, courtesy of Tony Webster via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Deforestation in the Amazon Rainforest

May 30, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/05/EW-05-30-17-Deforestation-in-the-Amazon.mp3

The Amazon rainforest is the biggest in the world, larger than the next two biggest combined.  It covers over 3 million square miles, roughly the size of the lower 48 states.  For this reason, it functions as a critical sink for carbon in the atmosphere.

[Read more…] about Deforestation in the Amazon Rainforest

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