Featured Articles
| Monday Oct 5, 2015 | |
| Over the weekend, the California grid saw some changes to their supply stack that ultimately pushed up the overall implied heat rate in SP15 by a 1 1/4 points (going from a 10.75 on Friday to over a 12.0 for today). Figure 1 | CAISO Day Ahead LMP Auction Results - SP15 Hourly As you can see in Figure 1, the entire curve shifted up despite load being 2,800 MWa lower today vs. Friday. Figure 2 | CAISO Day Ahead Load Schedules - Hourly Since it is not load causing the uptick in the implied heat rate, it has be coming from the supply side. Diving into ... » read more | |
| Friday Oct 2, 2015 | |
| Now that we are in the month of October, the well anticipated derate of the DC transmission line from the Pacific Northwest down to Southern California is upon us. As of tomorrow, October 3rd HE 5, the DC intertie will be derated down to 0 MW. It is expected to stay derated until the work is completed on December 21st, 2015. This information has been known in the marketplace for some time as BPA as had conference calls/sent out PDF reports that describe the work going on and how the changes will ultimately add new capacity to the line as well as make ... » read more | |
| Thursday Oct 1, 2015 | |
| Technically, Fall starts on the 23rd of September but those of you who live on the west coast know that fall weather has been a little bit late this year due to the high ridge that will not go away. This has been the most evident down in California, where up until this week, the loads have been well above normal (last Friday's peak load forecast was just above 42,500 MW). Figure 1| CAISO YoY load - HL The unseasonable uptick in load was complicated by scheduled derates over the Paci interface and weak wind generation. The loss of imports and weak ... » read more | |
| Wednesday Sep 30, 2015 | |
| Over the years, we have discussed the CAISO market in detail. One of the topics that comes to the forefront is the Ancillary Service markets, especially the Regulation Up and Spin markets as they tend to show binding constraints between what is known as SP26 (LA Basin) and the rest of the CAISO footprint. Today was one of those days, as the grid got longer day on day and the Regulation Up binding constraint widened. Figure 1 | CAISO Regulation Up Binding Constraint - Hourly The blue line is the price for Regulation Up across the state while the ... » read more | |
| Tuesday Sep 29, 2015 | |
| Now that October is getting close, both ERCOT and CAISO (yesterday's Newsletter) seem to be onboard with the fact that the power load across the country will continue to decline. This, in turn, will have an impact on the overall power burns across the country. This is evident in the recent power burns, as the weekend dipped down below 25 BCF. For Monday, things ticked up (25.8 BCF), but nowhere near the levels we saw a week ago (27.5 BCF). Figure 1 | North American Power Burns - Daily Such a shift down has prompted the month to date average for ... » read more | |
| Monday Sep 28, 2015 | |
| With October right around the corner, it looks like both ERCOT and California are finally going to join the rest of the country's move down peak power demand over the past week. Up to this point, California has been looking at above normal temperatures throughout the month with Burbank seeing upper 90's as a high last week. Figure 1 | Burbank Forecast/Actual Temperatures This led to the overall CAISO peak demand to shift up to the 42,600 MW level, with both SCE and SDGE being the key drivers. Figure 2 | CAISO Peak Load Forecast As you can see in Figure 2 ... » read more | |
| Friday Sep 25, 2015 | |
| The weekly EIA storage number posted a 106 BCF injection for the latest reporting period. This was anywhere from 6-8 BCF over market expectations and the highest number we have seen in some time. Such a change was mainly due to the power load shifting down, hence a big decrease in the overall power burns. Figure 1 | EIA Storage Numbers The thing that sticks out is the Producing region put in another 37 BCF this week, which adds to its growing storage level. Figure 2 | EIA Storage Numbers - Producing Region Over the past couple of weeks, we have been ... » read more | |
| Thursday Sep 24, 2015 | |
| CAISO LMPs increased for today as cleared demand jumped 2.4 GWs over the peak. Initially, the conditions seem very similar to earlier this week. Figure 1 | CAISO DA scheduled load Looking under the hood, the load is shifting lower in PGAE and higher down in Southern California as Burbank's highs are in the upper 90's. Such an event shifted the SCE load up 1,900 MW (at the peak) compared to Monday (21st). Figure 2 | SCE DA scheduled load The next piece if the engine is net virtuals, which saw the middle of the day shift down 1,100 MWa ... » read more | |
| Wednesday Sep 23, 2015 | |
| As August ended, the big question was what were the hydro operators going to do with storage in Canada and the United States. Now that we are going on the 23rd day of September, I thought it would be good to take a look at how things have played out. First, the total hydro output has averaged around 8800 MW across the 24 hour strip. This is right in-line with the EnergyGPS Long Term forecast model run that was released in mid-August. What is interesting is the flexibility the system has as he heavy load has been averaging over 11,000 MW over ... » read more | |
| Tuesday Sep 22, 2015 | |
| Going into this week, it was pretty much known that the AC (Paci) transmission line was going to be de-rated during a period of heavy load hours in some capacity. By all accounts, the estimated reduction of MWs was roughly 1,000 MWa. This held true for Monday's auction clears as Paci flows decreased by 800 MWa starting HE 8. Figure 1 | Paci Day Ahead Flows - Hourly With CAISO's load shifting up as well, due to the warmer weather, the grid was roughly 4,400 MWa shorter day on day when you look at load and Paci flows. Figure 2 | CAISO Day Ahead ... » read more | |
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