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Constellation Energy sets industry record for blending hydrogen with natural gas

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Constellation Energy has set an industry record for blending high concentrations of hydrogen with natural gas, further evidence that hydrogen can be an effective tool to lower greenhouse gas emissions. The blending test occurred 18 May at Hillabee on a Siemens Energy SGT6-6000G gas turbine.

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EPA proposes new pollution standards for fossil fuel-fired power plants

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The US Environmental Protection Agency (EPA) has proposed new CO 2 standards for coal and natural gas-fired power plants. Through 2042, EPA estimates the net climate and health benefits of the standards on new gas and existing coal-fired power plants are up to $85 billion.

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EPA GHG Inventory shows US GHG down 1.7% y-o-y in 2019, down 13% from 2005

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The US Environmental Protection Agency (EPA) released its 28 th annual Inventory of US Greenhouse Gas Emissions and Sinks (GHG Inventory), which presents a national-level overview of annual greenhouse gas emissions from 1990 to 2019. Source: EPA. Source; EPA. CO 2 emissions decreased 2.2% from 2018 to 2019.

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Supreme Court curbs EPA authority to regulate CO2 from power plants

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EPA that the EPA lacks the authority to set emission standards for power plants so strict as to force a shift of power generation from fossil fuels. The opinion holds that Congress did not grant EPA in Section 111(d) of the Clean Air Act the authority to devise emissions caps based on generation shifting—i.e.,

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EPA trends report finds MY 2021 fuel economy remained flat at a record high while CO2 levels hit new low

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The US Environmental Protection Agency (EPA) released its annual Automotive Trends Report , which shows that model year (MY) 2021 vehicle fuel economy remained at a record high—but flat with MY 2020 fuel economy—while CO 2 emission levels reached a new record low. Source: EPA. Source: EPA. SOurce: EPA.

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EPA annual inventory shows US GHG up 3.1% from 2017-2018

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The 2020 edition of US Environmental Protection Agency’s (EPA) comprehensive annual report on nationwide greenhouse gas (GHG) emissions shows that emissions increased from 2017 to 2018 by 3.1% (after accounting for sequestration from the land sector). Source: EPA. >. Transportation sector.

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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.