Friday Update

Good Afternoon,

Here are a few highlights of what’s going on in the west today.



SP15 Loads

SP-15 loads sat mostly unchanged with a daily-average drop of just 54 MW.  Peak loads fell 120 MW, but were washed out by increasing early afternoon demand.

Mid-C Loads

Mid-C average daily demand hit 22,223 MW yesterday, an increase of 460 MW day-on-day as peak loads jumped 650 MW.  Off-peak demand increased 360 MW overnight last night as temps continued to cool.

NP-15 Loads

Average NP-15 daily demand increased 222 MW day-on-day yesterday, bringing the total to 11,901 MW, and marking the fourth consecutive day of increasing demand.  This also equated to a 460 MW increase week-on-week.


Current Weather Summary

Denver, Billings, and Burbank all report 10+ degree anomalies, but the entire West is beginning to warm up above normal, though Mid-C lags slightly behind.

Denver Weather

Denver’s temperature anomaly will grow to 18 degrees by the 12th as daily highs push into the mid-60s.  In a change from yesterday, the 15th was increased 10 degrees to a high of 60.  Look for highs to continue to stay above normal through the 20th.

Salt Lake City Weather

Salt Lake could warm up back into the 40’s next week as the 16th calls for a high of 46, nine degrees above normal.  Today’s marks the beginning of a steady increase in daily highs leading up to 47 by the 18th.

Phoenix Weather

Phoenix will jump eight degrees tomorrow before climbing another three on Sunday to reach a high of 78, 12 degrees above normal.  The beginning of next week took a slight turn cooler however, as the 13th lost five degrees and now projects a high of 73.  No days are forecasted below normal through the next three weeks.

San Jose Weather

San Jose will set several consecutive days’ worth of new 10-year highs beginning Sunday as temps reach 71 degrees and stay elevated through a high of 72 on the 15th.  The temp anomaly will grow as high as 14 by the 15th.

Sacramento Weather

Highs will be more subdued in Sacramento but remain well above normal for the next week and a half as temps climb 10-degrees above average to 64 on the 14th and 15th.

Burbank Weather

Highs for late next week were increased as much as nine degrees, enough to stay in the 80’s through the 15th as anomalies grow to 14+ degrees.  Temps will eventually drop back below normal by the 19th.

Seattle Weather

Seattle’s forecast continues to straddle the normal temperature line in terms of daily minimums, while the precipitation forecast looks bone-dry for another week.  No freezing temps on the horizon until the end of the month.

Portland Weather

Portland will drop below freezing (and normal) every day through the 11th, though nothing more than three degrees from average.  No precipitation until at least the 14th, and even that is projected at just a tenth of an inch.

Spokane Weather

Spokane will sustain daily lows in the 20’s for another week, but as the 10-year minimum records show, there aren’t any significant daily-low anomalies to be had, especially as next week shows signs of another warm-up with lows increasing to 33 (10 degrees above normal).


SP-15 Renewables

Wind and Solar generation combined to grow 243 MW day-on-day.  Light load wind has held steady generation for the entire week as well.

Wind peaked at 1,166 MW on the 4th and sustained generation through the morning of the 5th, but has all but fallen off since then.

Water Supply

NW River Forecast

Today’s update to the 10-Day Forecast included a 600 aMW increase from STP on the front end, and hat difference was increased to 780 aMW by the 12th.  Day-on-day differences were smaller, averaging 70 aMW for most of the forecast.


ISO Major Unit Outages Chart

Total ISO gas outages fell on Wednesday to 4,989 MW, a 1,600 MW decrease day-on-day.  The decline was maintained yesterday as well, remaining largely unchanged at 4,990.  Wind outages again held steady at 457 MW.


Transmission – MC-NP

Flow into NP fell 230 MW day-on-day despite reaching a peak of 3,975 MW in the late hours.  Average daily flow is up roughly 140 MW week-on-week, and up 40 MW above the weekly average.

Transmission – MidC to BC

Average daily flow moved closer to neutral yesterday after increasing nearly 620 MW to -855 for the day, partially thanks to a peak hourly flow of 212 MW at midday.  The daily average remained below the weekly average for the third-consecutive day.


Have a great week,