Norcal heat wave

[getakey]

Our forecast starting tomorrow is 104, 103, 103, 106, 108, 107, 102, 101
Its actually dropped a few degrees from the 111 previously forecast for Monday

Thinking about putting my PWs on backup only in case of blackout, but that would only hurt the grid. Anyone else changing their behavior?

 

[schettj]

We just got the Virtual Power Plant / Grid Event message for today. So my powerwall will get drained out this evening.

 

[jboy210]

I don't plan on changing mine from 40%. I figure the days should be clear so most days the Powerwalls will refill by noon as they did today. And there will be plenty of sun to run the A/C in the morning and still have full Powerwalls going into the evening. The heat is supposed to break for use on Tuesday evening.

 

[jboy210]

We just got the Virtual Power Plant / Grid Event message for today. So my powerwall will get drained out this evening.

If I get one, I might opt out this time

 

[h2ofun]

I don't plan on changing mine from 40%. I figure the days should be clear so most days the Powerwalls will refill by noon as they did today. And there will be plenty of sun to run the A/C in the morning and still have full Powerwalls going into the evening. The heat is supposed to break for use on Tuesday evening.

mine are at 10%

 

[sorka]

I'm going to be on vacation for the worst of the days so my PWs will be 100% available for virtual power plant usage. Hoping to make a $150 over the next 4 days.

 

[Dukeybootie]

Grid use only outside of peak hours (4-9pm), when I will switch to self powered and try to minimize A/C use. Going to save the PWs just in case. Have plenty of bill credit so don't mind doing this until cooler weather arrives.

 

[ucmndd]

We're also forecast for 110+ over the weekend and early next week. Had the same thought earlier today but ultimately I don't think I'll change anything. Time Based Control and reserve at 20%. If things do go sideways and there's a long outage overnight I have an evap cooler I can turn on that will keep things cool enough 'til morning.

 

[aesculus]

I am going to bump up my peak temperatures a degree or so. That way I have a bit more in reserve in case something fails. I might then bump the reserve up after I see how it performs during the day. Basically set my reserve and temps so I get to end of peak at the reserve % with no grid charging during peak.

 

[jboy210]

Just checked the app on the VPP output. At 6:36 PM - 2,793 homes. 17772 kW and climbing. Way to go! Event ends at 8 PM.

 

[sorka]

Just checked the app on the VPP output. At 6:36 PM - 2,793 homes. 17772 kW and climbing. Way to go! Event ends at 8 PM.

It was at 18.5 mw about 30 minutes ago.

 

[cwied]

The real-time marginal energy cost is up to $833.18 (California ISO - Prices, Today's Outlook):

 

[jaed]

Can anyone explain the above website. Is that what PGE pays at any given time? Am I to assume that is cost per KW during the peak event?

 

[Big Earl]

Can anyone explain the above website. Is that what PGE pays at any given time? Am I to assume that is cost per KW during the peak event?

That is the cost per MWh (megawatt hour) that the utilities pay to generation stations. $833.18 per MWh is $0.833 per kWh. I've seen well over $1,500 in the PJM grid in the Northeast USA.

 

[jboy210]

It was at 18.5 mw about 30 minutes ago.

I checked later and a dropped even more. I assume as the event goes on Powerwalls hit their reserve setting or 0. At the end of the event the number was under 5 MW.

 

[Big Earl]

Big M MegaWatt, not milliWatt.

 

[jboy210]

Big M MegaWatt, not milliWatt.

Opps. Fixed it.

 

[schettj]

I checked later and a dropped even more. I assume as the event goes on Powerwalls hit their reserve setting or 0. At the end of the event the number was under 5 MW.

I was tapped out about 20 min before the end of the event (20% reserve, dumped 80% of 1 PW2 + a trickle of solar during the event) - charging up nicely this morning - no fog today!

 

[schettj]

Looks like another flex alert is on for today. No VPP notice yet in the app. Maybe they're waiting until later in the day to give the grid a break & let us charge up with solar

 

[cwied]

Looks like another flex alert is on for today. No VPP notice yet in the app. Maybe they're waiting until later in the day to give the grid a break & let us charge up with solar

California ISO - Alert Warning Emergency Notices

www.caiso.com

There's an EEA (Emergency Energy Alert) Watch posted for 6pm - 7pm tonight. Yesterday's VPP event matched the hours for yesterday's EEA, FWIW.