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A Solar Power Boom In Texas | Earth Wise

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Texas has been a leader in wind energy for a number of years.  In 2020, wind made up 23% of the state’s generating capacity and provided 20% of in-state generation.  But although wind capacity in Texas has grown rapidly in recent years, solar power is expected to make up the largest share of the state’s capacity additions over the next two years.

Texas plans to add 4.6 gigawatts of utility-scale solar power this year and 5.4 gigawatts in 2022.  This will give the state a total capacity of 15 gigawatts, which will nearly catch up to California, the state with the most large-scale solar power.  California already has 16 gigawatts of installed solar capacity and plans to add about two more over the next two years.

The planned capacity for Texas will provide enough power for roughly 5 million homes, taking into account the intermittency of solar energy.  Much of the new solar capacity will be in the Permian Basin in West Texas, which is a particularly sunny place.  Because solar generation is greatest in the middle of the day, when wind generation is typically lower, the transmission line infrastructure already in place for the wind power will be adequate for the new solar installations.

The boom in solar power in Texas is driven in part by the federal solar Investment Tax Credit that is available to project developers as well as by the ever-lower cost of solar technology. 

One-third of the utility-scale solar capacity planned to come online in the U.S. in the next two years will be in Texas.  Currently, utility-scale solar only makes up 4% of electrical generating capacity in Texas, but that is clearly changing.

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Texas likely to add 10 GW of utility-scale solar capacity in the next two years

Photo, posted May 14, 2020, courtesy of Courtney Celley/USFWS via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Wind Power Overtakes Hydroelectric Power | Earth Wise

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In 2019, the amount of electricity generated by wind power surpassed hydroelectric power for the first time, making wind the largest renewable source of electricity generation in the country.

Total wind generation in 2019 was 300 million MWh, which was 26 million MWh more than was produced by hydroelectric plants.

Hydroelectric generation has fluctuated between 250 and 320 million MWh over the past decade.  The capacity base has been stable, so the fluctuations were a result of variable annual precipitation.   Hydroelectric generation is generally greatest in the spring when rain and melting snow pack increase water runoff.

The growth in wind power is primarily a result of increasing capacity rather than any major fluctuations in wind caused by changing weather.  The U.S. added about 10 GW of wind capacity in 2019, making it the second largest year for capacity additions ever, second only to 2012.

Wind energy is an intermittent source, meaning that it isn’t windy all the time.  The average annual capacity factor for the U.S. wind fleet over the past decade has been 28 to 35%, meaning that is the amount of energy actually produced compared with the systems running at continuous full power all the time.  By comparison, the U.S. hydroelectric fleet operated at 35 to 43% of capacity during that period.  So, wind power is actually not that much less a steady source than hydroelectric power.

According to the U.S. Energy Information Administration, the government’s production tax credit, which was extended through this year, means that wind power capacity in the U.S. will continue to grow at a robust pace.  Meanwhile, some dams are being decommissioned and there is little new construction in the hydropower sector.

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Wind has overtaken the top position for renewable generation in the U.S., EIA says

Photo courtesy of Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

An Incentive For Carbon Capture | Earth Wise

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Convincing industries to reduce their carbon dioxide emissions has not been easy.  Many approaches have been debated, including carbon taxes, carbon tax-and-trade schemes, and passing a giant Green New Deal.  Most economists agree that putting a price on carbon is likely to be the most effective approach.

But there is already in place an adjustment to the US tax code that is more of a carrot than a stick.  It is a tax credit that is designed to make capturing CO2 a financial winner for a number of high-emitting industries.  The credit, called 45Q, was enacted in February 2018.

The 45Q credit earns industrial manufacturers $50 per metric ton of CO2 stored permanently or $35 per ton if the CO2 is put to use.  An earlier credit for capturing carbon dioxide was limited to only $20 per metric ton and was capped at 75 million tons.  Some large fossil fuel companies did make use of the earlier credit.

The new version does not have a cap, but to qualify, companies need to start constructing carbon-capture facilities within 7 years and have 12 years to claim their money.

Companies with emission-intensive operations are busy figuring out how to take advantage of the credit.  These include cement makers, steel and power plants, corn ethanol producers, and ammonia plants.

Because the credit mandates that companies start constructing their carbon-capture facilities within seven years, most companies will tend to rely on mature technologies.  But the tax credit should also drive demand for next-generation carbon-capture technologies, of which there are many under development.  Saving lots of money on taxes is likely to lure US companies to capture carbon dioxide.

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45Q, the tax credit that’s luring US companies to capture CO2

Photo, posted October 2, 2014, courtesy of Sask Power via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Booming Electric Car Sales

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Electric cars are becoming more and more commonplace over time.  There is no place in the world where this is more evident than in Norway.  This year, about half the new cars sold in Norway have been electric.  This compares to only 25% just last year.  In March alone, nearly 60% of vehicle purchases in Norway were plug-in cars, outselling gas and diesel cars for the first time ever.

Norway has encouraged the switch to electric transportation by making battery-powered cars tax exempt as well as offering various other incentives.  This is all part of the country’s plan to end the sale of fossil fuel cars entirely by 2025.

Although Norway leads the world in electric car sales on a per capita basis, there are many other places seeing rapid growth.  In Maryland, for example, so many electric cars were sold in the past year that the state’s tax credit program, which has a $3 million annual budget, ran out of money seven months before the end of the fiscal year.  Between 2017 and 2018, the number of EVs registered in Maryland doubled to over 18,000.

New York has also seen robust growth in electric vehicles.  There are now more than 40,000 plug-in cars registered in New York State.  About a third of those are Tesla models, with the increasingly popular Tesla Model 3 rapidly becoming the dominant plug-in car in the state.  In fact, this year the Tesla Model 3 has accounted for about 60% of all plug-in car sales in the United States.

Not only are electric car sales going up, so are the options for car buyers.  Within the next year or two, there will be numerous new electric car choices available from multiple manufacturers appealing to the tastes of a growing range of car buyers.

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EVs Make Up Half of New Car Sales in Norway So Far This Year

Photo, posted May 16, 2019, courtesy of Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Lots Of Credit For Carbon Capture

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These days, the federal government has mostly turned its back on efforts to mitigate climate change or, for that matter, to even recognize its existence.  However,the budget bill passed in February contained a major increase in the tax credit known as 45Q, which provides incentives to businesses to develop and utilize carbon capture, utilization and storage technologies.

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