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Monday Nov 25, 2024   
How do you know when winter has started? Here in Portland, you know its winter when people celebrate every day without rain like it’s a national holiday. In the New England it’s when they switch from pants (because they‘re afraid of ticks) to short (to show they’re not afraid of the cold). In the world of natural gas, winter as arrived when ResCom demand starts to rise. In this blog we look at what that winter ResCom transition looks like in different parts of North America. Knowing cold weather increases natural gas demandm how the story plays out looks a little different in each region. Figure 1 | Alberta Weekday ResCom Demand (BCF/d) vs Temperature (F) The above chart shows the relationship between average daily temperature and ResCom demand. Each circle ... » read more
Friday Nov 22, 2024   
My son’s Halloween Trick or Treat haul last month was a lot like solar in CAISO this past year.  He brought back such an enormously filled bag, that its consumption needed to be significantly curtailed.  My wife, as is her early-November custom, hid the bag after letting him gorge for a couple days.  Really though, I don’t think she was hiding it from just him.   She won’t tell me where she put it either, and if she had, I’d go grab a Twix right now and take a photo of the stash for this blog.   She’ll bust it out when my son’s friends come over, but until then, he and I spend our spare moments sheepishly poking through drawers and backs of closets.    So instead of showing you a big sack of candy ... » read more
Thursday Nov 21, 2024   
The Pacific Northwest is certainly no stranger to rain, but the storms that raged in Western Washington earlier this week on Tuesday were unusually potent.  The atmospheric river weather system that has been on the radar for the PNW and northern California arrived with a bang, transforming into a bomb cyclone Tuesday with winds and heavy rain that dropped power lines, produced flooding, and left more than half a million without power Tuesday night.  The excitement is not yet over and the precipitation is set to move eastward, inland across the Cascades to deliver its payload in eastern Oregon, Washington, and Idaho.  This can be seen in the figure below, which shows a snapshot of the 5-day and 10-day precipitation forecasts published by the Northwest River Forecast Center ... » read more
Wednesday Nov 20, 2024   
Over the past few years, Alberta has been pushed to the extremes, hitting both its price floor and price cap more frequently. The figure below displays the number of hours spent at the $0/MWh price floor and the $1000/MWh price cap for each year since 2018. Data for 2024 goes through the first fourteen days of November. The number of hours at $0/MWh hit an inflection point in 2024. While 2020 and 2023 both had between 40 and 50 hours at the floor (other years displayed had less than 15), 315 hours have been at $0/MWh in 2024 so far. Moving to the price cap, the number of hours increased from 4 hours in 2018 to 26 hours so far in 2024. Every year since 2021 has had more than 10 hours at the cap while every year since 2022 has had more than 15. The data is separated into hourly groups of ... » read more
Tuesday Nov 19, 2024   
As we move through the back half of November, the transition from fall to winter is becoming increasingly apparent in some regions, though it remains delayed in others. In the Pacific Northwest, the shorter days, cooler temperatures, and persistent rain clearly signal the seasonal shift. However, this transition has been less pronounced in areas such as the Northeast, South Central, and parts of the Midwest, where moderate to warmer-than-normal temperatures experienced in the first half of November have postponed the onset of winter conditions. While some regions are firmly embracing the chill of the season, others are experiencing a slower progression, with fall’s warmth lingering longer than usual. Since last month, Mother Nature has delivered mostly moderate weather conditions ... » read more
Monday Nov 18, 2024   
In summer, power market pricing comes down in a large part to the ability of generation to meet the demands in peak hours. However, come the shoulder season tightness rarely comes from extreme peak loads but instead depends on what generation resources remain available. For that reason, closely tracking the natural constraints and seasonal outages becomes key to understanding where the market stands. CAISO’s shoulder season has kept us on our toes. Hydro is one generation source which has delivered some surprises, demonstrating the maximum that you can never step in the same river twice.   Figure 1 | Peak Net Load vs Peak Hydro The above figure gives a long-term view on the output of the hydro system. What’s most obvious from this chart is the roughly aligned seasonal ... » read more
Friday Nov 15, 2024   
The Washington State Cap-and-Invest program survived Initiative 2117 and will soon close out its second compliance year, marking the halfway point of the 2023-2026 compliance period. We still have no solid data from the program operator about emission levels since 2019. Our analysis continues to show a program with estimated emissions far in excess of the program cap – a structural short position. This short position can be filled in one of three ways – release of allowances currently held in the Allowance Price Containment Reserve (APCR), linking with California and Quebec (pushing the short position into a larger market), or release of more allowances at the ceiling price. Energy GPS analysis shows the program may be able to balance for Vintage Year 2024 with APCR allowances ... » read more
Thursday Nov 14, 2024   
The month of November has seen some changes in the water supply outlook for the 2025 water year.  These changes were relatively small moves in the grand scheme of things, but enough to produce larger movements in our expectation for hydro generation once winter and spring come around.  This topic was at the forefront of the latest Energy GPS PNW Hydro Report and Discussion.  At the start of the month the January-July seasonal water supply forecast was at 90.3 MAF (for the ESP10 forecast), or 87% of the 30-year average of 103.7 MAF that we tie our projections to as the “normal”.  By late last week on the 9th that number had risen to 96.4 MAF, or 93% of normal, driven up by the heavy precipitation in the short-term forecast.  Since the weekend, we saw ... » read more
Wednesday Nov 13, 2024   
Almost halfway through November, the leaves are looking barer from the loss of their fall color and mornings are chillier here in the Pacific Northwest. All signs are pointing toward the changing of the season. While there is more than a month left until the official start of winter, those in the energy industry are already looking ahead for what’s to come. In the Pacific Northwest, a La Nina winter has set the expectation for a wetter, colder winter. The last week has certainly delivered on the rain as the downpours have been strong and are expected to continue throughout this week. Skiers and snowboarders, especially, are enjoying the precipitation as the nearby Mt. Hood Meadows resort just announced their opening date, the earliest in over a decade due to the resulting snowpack. » read more
Tuesday Nov 12, 2024   
In our latest monthly report titled “October  Summerfest”, we highlight the unique seasonal shift that occurred this October, with warmer-than-usual temperatures across the Lower 48. Traditionally, October signals a transition toward colder temperatures, which prompts an increase in heating demand and shifts power demand patterns. Figure 1 | Summer Octoberfest – Beyond Expectations In the South Central region, warmer temperatures impacted ERCOT and SPP's load profiles, resulting in unusual net load profiles given the volatility in renewable energy landscape. The natural gas sector saw a significant increase in power burn compared to October 2023, as planned maintenance outages limited nuclear fleet supply. The report also highlights the strain on production ... » read more
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