One of the most utilized pieces of fundamental analysis in the natural gas industry is the Energy Information Agency’s (EIA) Natural Gas Storage Report, which is released every Thursday morning at 10:30 ET.  This report summarizes the results of a weekly survey of most natural gas storage facilities across the US and shows how much natural gas the nation has in storage. It also gives a regional breakdown, along with a reference to normal storage levels for each week of the year as shown in Figure 1.  Many industry analysts use this data and the amount of natural gas in storage compared to what is normal (the 5-year average is commonly used) to understand and forecast natural gas prices.

Given that we are halfway through July, we thought it would be appropriate to provide an update on how major power markets have performed as they relate to each ISO’s coincident peak demand management program.

So far, both weather and demand on the PJM and NYISO grids have been mild compared to recent summers and average summer temperatures. The mean temperature, compared to the average over the last thirty, fourteen, and seven days for the period ending July 13, is shown in Figures 1, 2, and 3 below. These charts show that summer has not really arrived in the middle of the country and that temperatures in the Northeast are only 2º to 3º F above the average.

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Early this month, ERCOT released the Seasonal Assessment of Resource Adequacy (SARA) report detailing market conditions as they exist going into the summer of 2023. This report takes into consideration the power output from all current, new, and planned generation that will be available comparing it to the forecasted peak load.

On the same day that ERCOT released the SARA report, the Chairman of the Public Utility Commission of Texas (PUCT), Peter Lake, released the following statement “Data shows, for the first time, that the peak demand for electricity this summer will exceed the amount we can generate from on-demand, dispatchable power." While the initial shock of these words is quite alarming and was quickly picked up by regional news agencies, we believe ERCOT is still better off this summer than last, and that the evolution of the grid to larger and larger percentages of renewable generation is not a new story. And while the statement of the Chairman is not technically false, it is somewhat misleading. Here is more of the whole story.

Figure 1 below is a summary of the report’s findings, demonstrating the load forecast scenarios on the left and a breakdown of the generation by type on the right, rated for this and last year’s summer capacity (the expected generation capacity during peak hours) as well as the current nameplate capacity (theoretical maximum output). Lastly, the reserve margin is a measure of the difference between the summer capacity and the maximum forecasted peak in the summer season. 

On May 11, 2023, the U.S. Environmental Protection Agency (EPA) proposed new rules designed to limit emissions from existing and new coal and natural gas fired power plants. This is the EPA’s third swing at regulating CO2 emissions from power plants. Its first at-bat dates back to 2015 when the Obama Administration’s EPA introduced the Clean Power Plan (CPP). The CPP proposed state-by-state emissions limits. These limits were quickly challenged by numerous states, particularly those with significant amounts of coal-fired generation. While these legal challenges were ongoing, President Trump was elected. Trump scrapped the CPP and introduced the Affordable Clean Energy Rule (ACE), which overrode the CPP and gave the states more power to set their own emission limits. The ACE also faced challenges in the courts.

In June 2022, the Supreme Court issued a ruling in West Virginia v. EPA that significantly limited the ability of the EPA to regulate emissions without a clear mandate from Congress. This ruling assures that the EPA’s new proposed rules, if finalized, are likely to face a lengthy legal battle.

The latest EPA plan sets out aggressive emission reductions and is likely to further accelerate the retirement of fossil fuel generation units. By 2030, the EPA plan requires any coal plant that intends to operate past 2040 to use a carbon capture and storage (CCS) system to eliminate 90% of its CO2 emissions. Large natural gas generation units will also be required to install a CCS that captures 90% of their carbon emissions by 2035 or operate on clean hydrogen by 2038. While there are different restrictions for smaller generation units, the EPA’s rules lean heavily on carbon capture, clean hydrogen and in some instances, use of dual-fueled gas plants with both natural gas and green hydrogen. At the same time, the EPA has acknowledged that CCS and clean hydrogen are not yet in widespread commercial use.

As filed last week, the EPA plan is a proposed rule, and the EPA will need another year or so to issue a final version. Once the final version is issued, states will have another two years to submit plans to comply with the regulations. This timetable will be delayed further by the inevitable legal challenges. West Virginia Senator Shelley Moore Capito and Attorney General Patrick Morrisey have already vowed to lead congressional and legal efforts to kill the rule.

A few things are clear. First, if the rules are adopted, the cost of generating electricity from coal and natural gas plants will increase dramatically. Second, even if the prospects for the EPA’s new rule are limited by various challenges, the proposed rules will cast a shadow over new investments in existing and new fossil fuel generation. Testifying before FERC on May 4, 2023, a bipartisan panel of FERC commissioners (2 Democrats and 2 Republicans) raised their shared concern that the reliability of our electricity grid is challenged by the fact that we continue to see fossil plants retire at a rate far faster than they are replaced by new emission-free generation. Of course, we will continue to monitor this important regulation on behalf of our clients.

On March 17, 2023, the Texas Court of Appeals added significant uncertainty to the state’s electricity market. The Court sided with Luminant in their ruling that the Texas Public Utility Commission’s (PUC) decision on February 15, 2021 and February 16, 2021 (in the middle of Winter Storm Uri) to unilaterally set the market price at the cap ($9,000 per MWh) was invalid. The Court’s decision creates unprecedented uncertainty in the electricity market and could lead to ERCOT resettling Real-time Settlement Point Prices for multiple days during that week because of the PUC’s order. 

This case takes us back to Winter Storm Uri, which devastated Texas in February 2021. The storm caused a significant portion of the generation fleet (both natural gas and renewables) to fail. Without sufficient generation, ERCOT was forced to institute widespread outages to avoid a total grid collapse.  The widespread outages reduced demand for electricity, and as result, the energy market started clearing well below the $9,000 per MWh cap.  

On February 15, 2021, the PUC, after a short hearing, unilaterally determined that the market price must artificially be set at the cap in the event of widespread forced outages. This increased market prices from around $1,200/MWh to $9,000/MWh (see Figure 1). On the next day, the PUC met again, and effectively confirmed its earlier ruling. Those orders on February 15^th and 16^th, dramatically increased electricity market prices until the energy supply shortage ended on February 19^th.

Here is the good news: in February, PJM posted the results of its latest capacity auction for the planning year June 2024 to May 2025. And for the most part, those prices are similar or lower than those for the 2023/2024 planning year. Historically, PJM holds annual capacity auctions to secure capacity three years in advance. However, recent auctions have been delayed over the last few years due to FERC rulings on the validity of the PJM’s auction design. These auctions are important because the results determine future capacity rates paid to generators, which are a major component of overall electricity rates for all retail customers in PJM states. Without this clarity and price transparency, electricity customers in PJM states risk paying high premiums to fix the price of capacity in future electricity contracts. The results of the latest auction provide price certainty for contracts through May 2025. The good news is that overall, the price of capacity fell again in most parts of PJM.

Figure 1 shows the latest auction clearing prices in dollars per MW per day across different Locational Delivery Areas (LDAs) in PJM. The capacity price for most of PJM cleared at $28.92/MW day (see the light blue area in Figure 1 labeled “RTO”), which is down from $34.13/MW day from last year’s auction for planning year 2023/2024. Capacity in eastern parts of PJM cleared at higher rates because of regional differences in the generation mix (natural gas, nuclear, coal) and the electricity infrastructure across various states and utilities. For example, capacity prices are higher in the BGE and Eastern MAAC LDAs because there is congestion on the electricity grid when power is moved from Ohio to Maryland and New Jersey during periods of peak power demand.