Grid Status
@grid_status
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Stay informed on the real-time status of the US Electric Grid with comprehensive monitoring and data
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With cold hazards approaching next week, we built a dashboard to track the forecasted impact on load & renewable generation in ERCOT
With 80 GW+ forecasted loads, a record winter demand could be on the way
Follow the live updating current forecast here:
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This morning, a nuclear unit in Texas unexpectedly tripped. What happens when a large generator suddenly goes offline? 🧵
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ERCOT hit a new record for battery dispatch tonight at 3.2 GW.
This smashed the previous record set less than a year ago by over 1 GW (+47%).
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Prices exceeded $4,000 across all of ERCOT tonight.
While gross load is under 60 GW, net load is the highest its been in the past 30 days due to low and falling wind output and sunset.
With thermal outages over 20 GW+, the system is quite tight.
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In 2024, natural gas generation on an average April day in California hit a 7-year low.
This is a significant trend reversal from what we saw from 2021 to 2023 in CAISO.
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Battery storage has been a standout performer in
@California_ISO
this spring. With over 7 GW of discharge at the peak (+100% since 2023), batteries are reshaping the grid dynamics.
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A coal power plant in Texas unexpectedly went offline tonight
Interestingly, the trip occurred not during the peak load, but later as solar power was ramping down for the day
This lead to a spike in real-time energy prices and ECRS deployments significantly relying on batteries
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This weekend, Texas set not one, but two all-time records for solar production, surpassing the previous record by 300 MW!
With record-breaking loads expected again this week in
@ERCOT_ISO
, the extra production from the growth of solar in Texas should be helpful
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3 days of 🌬️winter storm🌨️ real-time energy prices visualized in a minute
We picked a representative subset of market nodes across the US, colored by price to show patterns that otherwise require examining time series across thousands of individual points
Thoughts below👇
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Breaking Down a Record-Setting Day in ERCOT
August 20th, 2024 saw records for demand, solar generation, net load, and battery discharge alongside prices near the cap; another example of how operations in the market are evolving
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2024 has seen a big leap in the scale of battery operations in California
Battery storage charges during hours with plentiful solar and appears to be displacing natural gas during the morning and evening peaks
This is a clear step towards the grid that CAISO has been pursuing
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New Record: On April 16th, the State of Texas reached a new peak of 12.28 GW of solar power production.
This signifies a 10x increase over the past 5 years, establishing solar energy as the fastest-growing electricity source in
@ERCOT_ISO
#Solar
#CleanEnergy
#Texas
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Emergency Conditions 2 years ago, smooth sailing today. Has California’s grid finally caught up to its vision?
Last week, temperatures in the west reached up to 115° leading to high loads and reduced availability for both generation & transmission; similar conditions to
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If you’ve used Grid Status recently, you probably noticed our new Nodal Price Map.
In our latest blog, we provide an in-depth guide to locational marginal prices (LMPs) and how to use our map to analyze them.
.
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California and Texas are reaching new heights in utility-scale solar generation this year.
While both grids are approaching 20 GW peaks in solar production, the backdrop of each grid is markedly different.
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SPP will soon be the first ISO/RTO to manage operations in both the Eastern and Western grids
This historic expansion could reduce both power prices and total emissions
Let's look at the data and discuss this important salvo in the Battle for the West
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Battery discharge peaked well over 1.5 GW, which is the highest it's been since the Energy Emergency Alert Level 2 (EEA 2) in September 2023.
With ERCOT-wide prices at $4,500/MWh, batteries may have been setting the price.
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Renewable energy is soaring in California, but surprisingly, natural gas use is also increasing when solar power is most abundant
The duck curve contributes, but it doesn't tell the whole story. In the first post on our blog, we explore what's happening
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We just added data and visuals for 50+ new areas across the US! This includes load, fuel mix, emissions and more.
Previously, we focused on “deregulated” energy markets, but this release adds coverage for the whole country using data from
@EIAgov
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Growth in utility-scale solar generation in CAISO has picked back up in a big way so far in 2024.
Solar provides a predictable daytime power supply that batteries rely on to complement solar ramps at the beginning and end of the day.
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New Record: Batteries reached a peak discharge of 3,518 MW yesterday, representing 13% of California ISO's load.
Track real-time status of batters in
@California_ISO
here:
Thanks to
@_fei_wang
and
@USEnergyBot
for this insight!
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New Blog Post!
On its face, curtailment is a waste of “free” electricity from clean sources, but why does it occur and what should we do about?
Summary of the post and cool graphs ⬇️
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Grid Status just added new data on utility-scale battery charging and discharging in Texas available on our dashboards.
Recently released by
@ERCOT_ISO
, this new dataset is the best real-time data available on utility-scale storage in the country.
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If you can't watch the eclipse yourself, you can follow the impact on solar generation and grid operations on our Eclipse Tracker dashboard
Live data starting to come in now
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🌎 The new Grid Status Map is here!
Get a comprehensive view of electric grid conditions by clicking on any location.
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We just made it even easier to explore historical data on Grid Status.
On any ISO's page, you can now pick a date range to quickly see a past snapshot of the grid.
This simplifies digging into past events, helping you understand the grid using all the data we have available.
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Solar generation surpassed 15 GW for the first time ever in California yesterday! This milestone was hit at 12:45PM PDT according to
@California_ISO
.
At that time, renewables served an impressive 95% of the load in California significantly reducing the emissions of the grid.
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Could other dispatchable generation be displacing natural gas?
Hydropower has similar shoulder hour output as 2023, but the midday levels are much lower in 2024
This allows for greater dispatch of hydro resources during the hours without solar - a textbook complementary system
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📣 The new Historical Data Browser is out!
Until now, Grid Status has focused on beautifully presenting the real time status of the US Electrical Grid.
With today's release, you can now also explore our historical archive.
Play around here:
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The Texas grid has had an eventful last 2 weeks
Not only has
@ERCOT_ISO
hit numerous all-time records, it also launched a new market product (ECRS) for the first time in over a decade
For some enriching holiday weekend reading, see our latest deep dive
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With Winter Storm Finn approaching the Midwest, we built a dashboard to track its impact on the grid.
We made it using our new custom dashboard builder, so you can clone and customize it to your needs.
What else should we add to the public dashboard?
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An eclipse is traveling over the western half of the United States today, affecting both CAISO and ERCOT.
We've put together a custom dashboard to track the impact on solar production and grid operations for both ISOs in real-time.
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In this case, ERCOT swiftly deployed ancillary services, including a significant amount of batteries providing ECRS, to boost the frequency back to normal.
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Interesting slide from ERCOT on major drops in LFL demand during Heather.
While they note the potential impact of conservation appeals, the log scale for price perhaps understates its impact, with the steepest declines during periods with higher prices, regardless of appeal.
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Solar production broke 16 GW for the first time ever in Texas today!
A huge jump of ~10% compared to the previous all-time record in ERCOT.
More records:
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This past week, a heat wave across the Eastern United States pushed grid operators to posture for emergency conditions
Region-wide stressful conditions highlight the utility of interconnected operators coordinating to help ensure grid reliability. Let’s step through the data
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New Visualization: You can now monitor the latest hourly outage capacity in
@ERCOT_ISO
on Grid Status.
We display the previous 3 days of outage capacity and the outlook for the next 3 days based on the latest published outage report.
Try it out:
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Predicting coincident peak demand intervals is a multi-million dollar business. Here's how it's getting more complex ⬇️
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Apple recently released their Grid Forecast that predicts when electricity from the grid will be “More Clean”.
Without much public information available, we decided to investigate.
After a few months of data collection, here are our findings
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The net load in
@California_ISO
is currently near zero, which is the lowest it has been in the past 30 days.
This means that solar and wind energy are currently meeting almost all of the state's electricity demand.
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Wildfires in Canada sent smoke into New York last week. Looking at photos of the situation, we suspected that the smoke impacted solar production. But, how much?
Enough to lead to the largest solar forecast errors in the history of New York by over 50%!
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Net Load Ramping is a key metric to understand the integration of renewables into the grid
Failing to account for its impact on fossil fuel generators is a flaw in energy transition models that must be fixed to portray a resource mix with more renewables
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Early this morning, a bridge collapsed outside of Baltimore. While search and rescue was the immediate goal, it appears that measures were also taken to secure the electrical grid.
The first place we observed the response was electricity prices spiking in the region
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One of the most intuitive ways to track how the electric grid is evolving is by following records 🏆
With our new Records tool, you can explore peak days related to renewables, batteries, net load, and more across the grid.
Try it out:
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Price signals then reconfigure the generation output in West Texas at 7:40am CT, causing some units to increase output and some to curtail.
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Solar closed 2023 strong in
@ERCOT_ISO
with a generation record of nearly 14 GW as more capacity keeps coming online.
An appropriate year's end in Texas after a record shattering summer.
Watch for more records to fall in 2024 here:
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Happy Feature Friday 🥳
This week we updated our map to show all Balancing Authorities (BAs) across the US.
This makes it a lot easier to find the energy data you're looking for!
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Using data on Grid Status, we take a look at how pooled resources and advanced operational strategies prevent significant disruptions when shocks occur.
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Tonight's peak load in
@pjminterconnect
is forecasted to be at its highest level in over a decade due to the heat wave.
In the animation here, we can see how the forecast evolved from nothing special to record-setting levels over the past week.
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Electricity prices responded shortly after the trip pointing to the likely source of the outage.
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📢 You can now track renewable curtailment in CAISO and SPP on Grid Status!
Curtailment occurs when there's an excess of wind and solar energy, requiring a deliberate reduction in generation to maintain grid balance.
Explore the data:
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Grid Status now makes it easy to track Net Load!
Net Load represents the total energy demand minus wind/solar generation
It reveals the impact of renewables on the grid by showing much energy must come from sources like fossil fuels, nuclear, or storage
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As more solar and wind production join the grid, batteries play a critical role in smoothing out supply and demand by strategically charging and discharging
Here is what that looked like every day in California in 2021 and 2022
#energytwitter
#CAISO
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Is data like this important to you? See this data and more on .
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Did you know you can now download any data you see on Grid Status?
It's as easy as finding your favorite graph and clicking the download button.
Try it yourself:
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As of today, ERCOT publishes real-time fuel mix every 5 minutes
So, of course we had to integrate into the grid status dashboard
Check it out at
#energytwitter
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Want to monitor the wholesale price of electricity across the United States all in one place?
Grid Status now displays the current day real time and day ahead pricing at every major trading hub in the US
Check it out and let us know what you think!
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Due to the cold snap, Oil is now the top fuel source on the New England Grid supplying ~30% of the grid energy.
Follow live status:
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At the peak batteries were serving 5.1% of load — an all-time record based on our tracking
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California is a leader in renewable energy production in the United States.
However, when renewables like wind and solar produce energy in excess of demand, generation has to be purposefully reduce, or “curtailed".
Let's take a look at the data in
#CAISO
🧵
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Today marks the best day in the past month for "behind-the-meter" (BTM) solar energy generation in
@isonewengland
.
~10 times more power was produced by BTM systems than "front-of-the-meter" (FTM) systems today.
Access the live data for yourself here:
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Real-time prices are elevated across the board in ERCOT this evening.
No need to be glued to your screen to stay informed.
Set up a free alert for any grid condition at .
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@hargup13
This is our own map. Here's the link
It's still in early preview, so you have to click the link above to activate it on your account
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Last night, many were monitoring the Physical Responsive Capability in ERCOT. The PRC got critically low, triggering Texas' first power emergency in 2 years
While ERCOT's site only displays the current day, you can see historical data on Grid Status
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🏆 The Southwest Power Pool (SPP) just hit a new peak load record of 55.9 GW, exceeding the previous record by over 5%
@SPPorg
oversees the electric grid in the central United States across 15 states including Kansas, Oklahoma, and Nebraska.
See more:
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Some of the discharging storage resources were economic, but a large portion were held in reserve for deployment in this very way through ECRS.
We wrote about ERCOT Contingency Reserve Service (ECRS) here
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@California_ISO
CAISO has gained substantial peaking capacity from batteries over the last two years. Last week, the impact of this expansion was clear
The growth of energy storage compensated for the reduced capacity available from imports and other generator derates. Energy storage discharged
1
7
31
Today is looking like it will be a record day for Solar Power in California!
This is the most solar ever at this point in the day during a winter month in
@California_ISO
#solarpower
#renewableenergy
#energy
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5
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We believe it was the 1.8 GW Oak Creek Coal Plant that tripped
This created an issue at a particularly bad time by adding to an ongoing net load ramp down as the sun set
More about Net Load Ramps, which are increasingly concerning for grid operators here
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3
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Renewables are dominating California's grid on again today.
At the peak, solar and wind alone were generating an impressive 96.7% of California's energy needs.
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Despite this substantial increase in midday demand due to battery charging, there was no increase in natural gas generation.
In fact, the opposite occurred. From the mid-morning until the late evening, average hourly gas generation was at its lowest levels in the last 7 years.
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@California_ISO
The Western Interconnection experienced its peak summer event of 2024 last week. The system performed to expectations but certain issues in the west remain.
1. California’s generation fleet remains susceptible to ambient temperature outliers and experiences large derates when
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3
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Last week, nuclear generation representing nearly 14% of demand in New England suddenly went offline. Immediately, real-time prices spiked, but that's not all.
In our latest post, we explore the measurable effects on the grid of this abrupt outage.
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Batteries sent more power to the grid in ERCOT than ever before.
Shattering the previous record, battery discharge peaked 20% higher than the previous record set only the day before as ERCOT released ECRS fully
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1
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Some demand response action in NYISO today. As load rose, the ISO deployed Special Case Resources, a long-standing program.
State-wide activations are particularly obvious in the North and West zones as the resources represent a relatively larger portion of zonal demand.
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As solar ramped down, ERCOT set a new maximum net load record.
Net load is demand that must be met by resources with a higher marginal cost. Load remained high as the sun set. High prices correlate to high net load rather then gross load
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1
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While most eclipse observers will be staring at the sky, grid operators will be making sure the power stays on in the darkness.
Check out our latest blog on what we'll be watching come Monday
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@California_ISO
Storage was a key contributor to these muted prices
In 2024, storage in CAISO may have crossed a critical threshold. When batteries charged on cheap solar are on the margin, volatile gas prices play a diminished role.
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4
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ERCOT set a new all-time record for demand.
Solar generation was high all day, keeping prices under control even through the record-setting peak load
2
5
25
First 90-degree day in May, causing high loads in Texas right now.
Fortunately, below average wind is being offset with higher than average solar numbers. Still seeing prices spiking, but could be a lot worse!
More info:
Here's a live look at
#ERCOT
prices and a reminder that
#txlege
hasn't passed any transmission bills. Transmission congestion cost Texas consumers $3 billion last year alone. Plenty of low cost power in the Panhandle just can't get it to the load centers.
#txenergy
#energytwitter
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@California_ISO
Energy storage was likely the marginal resource with significantly lower bids in real time compared to day ahead
Storage made up a significant part of the peaking resource stack on the 5th. For the peak hour, 4.3 GW offered under $100/MWh in the Day Ahead Market, but 7.4 GW
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1
25
Exciting news! We just released version 0.15.0 of our open source library for accessing ISO data
Check it out here:
Here's what's new ⬇️
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7
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Visualizing pricing data on a map can be extremely powerful for identifying patterns in this type of complex and dynamic data. What did you see that we missed?
If you like this type of visualization, stay tuned for the interactive version we are working on for
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August 20th, 2024 demonstrated every changing facet of ERCOT
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As we roll off the shoulder season into winter, the FERC and NERC reporting on Winter Storm Elliott is a great reminder of how crucial outage data can be.
On Grid Status, you can publicly visualize and download real-time CAISO, ERCOT, and SPP outages and access historical data
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Just a deployed another improvement to ERCOT 🎉
You can now see the real-time load updated with 5 minute frequency (used to be hourly)
Also, check out Wind! Providing over 50% of ERCOT generation right now 💨
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Why did prices diverge on either side of the river?
With a disabled ship under high voltage lines, the local transmission owner may have taken measures to limit flows over the affected area.
We can see that forced outages were put in place around Brandon Shores this morning
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5
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This highlights the challenging task of maintaining the electrical grid.
The interconnected nature of our system means that grid operators need to be able to respond quickly at any time of the day.
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This year's record-high solar generation means that batteries are charging on cheap solar during the day and displacing natural gas when solar generation is ramping up and down in California.
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1
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@California_ISO
Despite the challenges, CAISO avoided emergency conditions — no sky-high price or rolling brownouts; and did it with reduced reliance on neighbors.
Here’s what’s changed over last 2 years →
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We all know that we can't control the sun or wind, so those sources of energy vary significantly day to day
What do we see right now on ?
There's more solar power in
@California_ISO
than any other day in the last 30 days ☀️
#energytwitter
4
1
20
Due to the heat,
@California_ISO
demand was the 3rd highest in 15 years while net load crossed 40 GW - a problematic level in years past
The heat also manifested in congestion. This was due in part to load, but also knock-on effects such as generator derates and tie flow cuts.
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4. When less is more
Finally, we teamed up with power systems and renewable integration expert
@kyrib
to show how curtailing a cheap generator when there is congestion can lower overall system costs.
Here's that "simple" example
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3
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This is the first outage data we've visualized on the site, so any feedback is appreciated!
Thank you
@douglewinenergy
for the suggestion
Would be nice if
@ERCOT_ISO
would put a graphic on their dashboard for thermal outages. The Independent Market Monitor says there are three inputs for outages: high demand, high thermal outages, and low wind & solar. ERCOT shows 2 out of 3 of those on the dashboard.
#txenergy
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ERCOT deployed nearly all available capacity without experiencing reliability issues.
Physical Responsive Capacity (PRC) and capacity available to SCED within 5 minutes declined significantly despite 2,000 MW of extra capacity released from ECRS
2
1
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Despite brief high prices in the Pacific Northwest on the 12th, it was not until the 13th and 14th that a combination of winter weather and a short-term outage at a major gas facility led to consistently elevated prices.
These higher prices also spread in the region
1
4
20
The key question going forward is whether this is indicative of a new reality in CAISO, or simply an outlier spring.
For more visuals and our in-depth analysis, check out our full blog here:
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When the 60 day SCED data is available you can chart flexible load operations along with other market data via our dashboard tool at
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