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Congestion Watch Blog

RGGI Auction 62 Clears at CCR Trigger of $14.88 | Emissions Watch Blog

The most recent RGGI quarterly auction (Auction 62) was held on December 6, 2023. The clearing price was $14.88/ton, 7.4 percent higher than the clearing price of $13.85/ton on September 6, 2023 (see Figure 1). Auction 62 represents the third consecutive auction with increasing clearing prices, which follows three prior consecutive auctions with decreasing clearing prices.

Congestion Watch Blog

RGGI Auction 61 – Clearing Prices Up Nearly 9% | Emissions Watch Blog

The most recent RGGI quarterly auction (Auction 61) was held on September 6th. The clearing price was $13.85/ton, 8.8% higher than the clearing price of $12.73/ton on June 7, 2023. Auction 61 represents the largest increase in clearing price in percentage terms since Auction 54 in December 2021.

Emissions News

Will Virginia leave RGGI? | Emissions News

At the end of July, regulations were published to withdraw Virginia from the Regional Greenhouse Gas Initiative (RGGI). The regulation, which was to take effect on August 30, 2023, requires that Virginia withdraw from the RGGI program at the end of this year. As expected, a legal challenge was filed immediately by the SELC.

Congestion Watch Blog

RGGI Auction 60 – Clearing Price of $12.73/ton | Emissions Watch Blog

RGGI quarterly Auction 60 was held on June 7, 2023. The clearing price was $12.73/ton, 1.8 percent higher than the clearing price of $12.50/ton on March 8, 2023 (see Figure 1). Auction 60 represents the first auction with a clearing price higher than the previous auction since Auction 56 in June 2022, reversing the recent trend of declining clearing prices.

Congestion Watch Blog

RGGI Auction 59 – Clearing Price of $12.50/ton | Emissions Watch Blog

The most recent RGGI quarterly auction (Auction 59) was held on March 8, 2023. The clearing price was $12.50/ton, 3.8% lower than the clearing price of $12.99/ton on December 7, 2022 (see Figure 1). Auction 59 represents the third consecutive auction with a clearing price at least three percent lower than the previous auction. The trend of lower clearing prices in recent auctions is notable given that clearing prices had increased in 12 consecutive auctions from September 2019 through June 2022.

Congestion Watch Blog

PM2.5 and NAAQS Update | Emissions Watch Blog

The U.S. Environmental Protection Agency (EPA) issued a proposed rule to strengthen the primary (health-based) annual National Ambient Air Quality Standards (NAAQS) for fine particle pollution, PM2.5. Specifically, the EPA is proposing to revise the primary annual standard from 12.0 µg/m3 to a value within the range of 9.0 and 10.0 µg/m3.

Emissions News

EPA Proposes Tightening Fine Particulate Matter Standard, Potentially Affecting Coal Power Plants | Emissions News

Ethan Howland reports in Utility Dive that in a move that could add to regulatory requirements for coal-fired power plants, the Environmental Protection Agency on Friday proposed tightening the primary annual air quality standard for fine particulate matter, called PM 2.5, to a range of 9 micrograms per cubic meter to 10 µg/m3 from 12 µg/m3. Coal plants owners in nonattaintment areas for a revised standard will have to meet requirements outlined in any approved state plans for meeting the federal PM 2.5 limit, according to Julia Criscuolo, ESAI Power manager of renewables and emissions.

Congestion Watch Blog

RGGI Auction 58 Clears at $12.99 | Emissions Watch Blog

The most recent RGGI quarterly auction (Auction 58) was held on December 7, 2022. The clearing price was $12.99/ton, three percent lower than the clearing price of $13.45/ton on September 7, 2022 (see Figure 1). Auction 58 represents the second consecutive auction with a clearing price lower than the previous auction, with both Auctions 57 and 58 clearing 3 percent below previous auction clearing prices.

Congestion Watch Blog

RGGI Auction 57 Clears At $13.45, A 3% Drop | Emissions Watch Blog

The most recent RGGI quarterly auction (Auction 57) was held on September 7, 2022. The clearing price was $13.45/ton, three percent lower than the clearing price of $13.90/ton on June 1, 2022 (see Figure 1). Although the clearing price was only $0.45/ton lower than the most recent auction, Auction 57 marks the first time since Auction 45 in September 2019 that the clearing price has declined from the previous auction.

Congestion Watch Blog

Proposed EPA Rule Leads to Quadrupling Group 3 Ozone Season CSAPR NOx Prices | Emissions Watch Blog

The EPA issued a proposed rule in February 2022 that, if finalized, will implement significant programmatic changes, and establish lower emissions limits to the existing Group 3 Ozone Season Cross-State Air Pollution Rule (CSAPR) beginning in the 2023 ozone season. Following the issuance of this proposed rule, Group 3 CSAPR NOx allowance prices have quadrupled from approximately $6,500/ton in February to $28,500/ton (June 6).