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🔥This week saw 72 hours of extreme temps in the Eastern US — here’s how they impacted electricity prices in 60 seconds. It was a clear reminder: summer risk isn’t going anywhere, and cooling for those new demand centers only gets more difficult as temperatures rise.

This morning, a nuclear unit in Texas unexpectedly tripped. What happens when a large generator suddenly goes offline? 🧵

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%).

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.

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.

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.

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

❄️ 3 Days of wholesale electricity prices during last week’s winter storm in 90 seconds ❄️ Grid conditions east of the Rockies were challenging throughout the week. Extreme cold weather induced new demand peaks, constrained access to gas, and contributed to record-setting days for renewable generation. The prices on the map reflect these conditions and the actions of grid operators to balance systems and keep the lights on!

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👇

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

Yesterday, both the Texas and California grids hit new all-time highs for battery discharge within hours of each other. @ERCOT_ISO topped 4,000 MW for the first time, while @California_ISO slightly bumped up the record it set this summer.

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

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

Batteries are reshaping ERCOT’s ancillary services procurement Battery generation capacity has made up 50%+ of awards for reg up and responsive reserves since 2022. In these, coal and gas regularly account for <20% of capacity. While ECRS is more restrictive, batteries have reached a plurality at times.

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

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 September 2022.

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. blog.gridstatus.io/analyzing….

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.

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 blog.gridstatus.io/spp-expan…

PJM's Capacity Auction (BRA) for 2026/2027 just cleared at the cap for the entire market. This comes on the heel of Google's recent procurement of hydropower capacity in PJM, signaling no end to Big Tech's insatiable demand for datacenter power.

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.

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 blog.gridstatus.io/balancing…

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 gridstatus.io/eia

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.

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: gridstatus.io/caiso Thanks to @_fei_wang and @USEnergyBot for this insight!

Last week, a ~1 GW nuclear unit tripped outside of Pittsburgh. This is how the trip impacted grid operations in the following 15 minutes. As generation from the Beaver Valley Nuclear Power Station declined, PJM's Area Control Error (ACE) swung negative, indicating a need for other generation to turn up or on immediately. ACE is a key signal to understand system balance and often portends spikes in the energy component of LMPs. Prices rapidly decreased, but ACE remained high due to the generation spun up to meet the gap. It takes longer to turn generation off the right way as opposed to a forced outage, so ACE remained elevated and prices declined to below their pre-trip level.

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 ⬇️

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.

If you can't watch the eclipse yourself, you can follow the impact on solar generation and grid operations on our Eclipse Tracker dashboard gridstatus.io/total-solar-ec… Live data starting to come in now

Both NYISO and ISO-NE import millions of cheaper MWhs per year from Canada. With just 10% tariffs, this price advantage is nearly eliminated. Both NYISO and ISO-NE import millions of cheaper MWhs per year from Canada. With just 10% tariffs, this price advantage is nearly eliminated.

🌎 The new Grid Status Map is here! Get a comprehensive view of electric grid conditions by clicking on any location. gridstatus.io/map

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

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.

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.

It’s been a record-breaking week in ERCOT. Let’s analyze how cold weather, load growth, and new generation sources are creating conditions never before seen in Texas. ERCOT broke its record winter peak yesterday and today, culminating in a new record above 80 GW for the first time at 8AM CST this morning. But even more has been going on under the hood in the last few days. Cold temperatures were widespread across Texas, reaching the low teens in Dallas and below freezing in Houston and Austin. Electric heating helped drive a robust demand ramp, although it ended up several GWs below ERCOT’s day-ahead forecast. As load peaked, net load exceeded last summer’s record, nearly hitting 71 GW at 7:10 AM CST. Cold weather failed to chill ERCOT’s hot battery storage fleet, with discharge approaching 4600 MW, ~250 MW higher than the previous record, also at 7:10 AM CST. Alongside these records, solar growth has continued, with a new record jumping 2 GW just last Sunday to cross 24 GW for the first time. Yesterday, Rabbit Hill captured the dreams of those looking to strike it rich (and nightmares of folks managing risk) in ERCOT with sustained LMPs well above what might normally be considered extreme pricing. In fact, Rabbit Hill can now claim the 90 highest single-interval settlement point prices since at least 2011. This location north of Austin has made frequent appearances in ERCOT’s planning materials in recent years as Texas’ general load growth and plans for massive local industrial facilities have triggered multiple transmission upgrades and expansions. Track records in ERCOT and all other ISOs using our Record Tracker tool, and download data via our Data Exporter tool, API, or Snowflake to manage your operations during extreme events.

📣 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: gridstatus.io/graph

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: gridstatus.io/dashboards/us-…

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 blog.gridstatus.io/ecrs-firs…

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? gridstatus.io/dashboards/win…

Prices spiked in ERCOT this morning, mostly driven by the cost of energy from marginal batteries We're in the depths of outage season with many thermal assets out for maintenance. In those conditions, even a modest morning load forecast beat can lead to a quick run up the supply stack

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. gridstatus.io/dashboards/ecl…

Today the PJM Interconnection set a new winter demand record, ~145GW, displacing a decade-old peak Prior to the new record, only a single day had cracked the winter top ten in the last ten years. Impressively, the RTO accomplished this while exporting ~8 GW to neighbors. In part, to Tennessee Valley Authority, who set a new all-time demand record this morning with 35.3 GW. This eclipsed last January's record-breaking 34.6 GW. TVA is certainly hurting for missing a unit at both Watts Bar and Sequoyah the last few days as well, so that interchange likely played a larger role than normal. It also appears that Midcontinent Independent System Operator (MISO) was within ~1 GW of their winter record, while ERCOT had its second highest demand winter day ever. The eastern half of the country has quite a ride of winter weather to start the year.

In this case, ERCOT swiftly deployed ancillary services, including a significant amount of batteries providing ECRS, to boost the frequency back to normal.

PJM released preliminary values for its 2025 load forecast, which once again represent a significant increase from the previous year. These findings will be presented at the Load Analysis Subcommittee next Monday and published in final form early next year. short 🧵

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.

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: gridstatus.io/records

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

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: gridstatus.io/live/ercot#out…

Predicting coincident peak demand intervals is a multi-million dollar business. Here's how it's getting more complex ⬇️

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.

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 blog.gridstatus.io/apple-gri…

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%!

Last 2024-in-review slides! We took a look at far west Texas in ERCOT, and Dominion in PJM, oil and gas load growth vs data centers All slide sets are also getting posted to our blog and expanded a bit, if you're subscribed look for a roundup email in the next ~week

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 blog.gridstatus.io/net-load-…

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

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: gridstatus.io/records

Price signals then reconfigure the generation output in West Texas at 7:40am CT, causing some units to increase output and some to curtail.

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! gridstatus.io/map

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: gridstatus.io/records/ercot

Using data on Grid Status, we take a look at how pooled resources and advanced operational strategies prevent significant disruptions when shocks occur.

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.

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 gridstatus.io/#load

📢 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: gridstatus.io/graph/curtailm…

Electricity prices responded shortly after the trip pointing to the likely source of the outage.

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

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: gridstatus.io/home

Is data like this important to you? See this data and more on gridstatus.io/.

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 gridstatus.io/ercot #energytwitter

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: gridstatus.io/isone

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 gridstatus.io/#lmp Check it out and let us know what you think!

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: gridstatus.io/isone

At the peak batteries were serving 5.1% of load — an all-time record based on our tracking gridstatus.io/records/ercot

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 🧵

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 gridstatus.io/alerts.

This is our own map. Here's the link gridstatus.io/map?nodalMapPr… It's still in early preview, so you have to click the link above to activate it on your account

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

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 blog.gridstatus.io/ecrs-firs…

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 gridstatus.io/graph/ercot-pr…

🏆 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: gridstatus.io/records/spp?re…

2024 was another big year for solar across the United States. We're breaking down some of the data across each market. From now until the end of the year, we’ll be posting about trends and events that shaped 2024 as well as what to expect in 2025. Keep an eye here for more!

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 4 GW more in peak hours compared to 2022, a 200% increase

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 blog.gridstatus.io/net-load-…

In @DominionEnergy , the needs of Data Centers Drive Demand Home to the densest collection of data centers in the world, Dominion has been one of the highest demand zones in @pjminterconnect for nearly two decades, but only in the last 6 years has its growth accelerated beyond secular trends.

We get a lot of questions about data on the nodal map. While we have real-time and historical price data for every node across the US, in order to provide a public map we manually collect information from a wide variety of sources to show a significant sample of available nodes. Over the past week alone we added over 150 new nodes focused on PJM. These new nodes focused on capturing consistent congestion patterns, important legacy generators (like hydropower), emerging trends such as solar on the RTO’s southern border, and the famously constrained Delmarva Peninsula. Feel free to reach out if there are specific spots on the grid where you’d like to see more map coverage!

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.

Today, we are launching Grid Status on @SnowflakeDB Marketplace! Get instant access to 200+ power market and electric grid datasets that are curated and maintained by our team of experts. Reach out for a free evaluation

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 temperatures exceed 110°F. 2. Operators in the west are forced to proactively enter conservative operations to handle wildfire risk. This affects regional flows and ultimately costs to consumers. 3. Demand in CAISO peaked at its third highest level in the last 15 years, but the ISO did not enter an EEA despite import cuts from neighbors. 4. The rapid build-out of storage in CAISO mitigated conditions (west-wide heat, import cuts) which had previously led to serious operational challenges. 5. New market outcomes occur when peaking units lack traditional input costs. Rising storage capacity across the country will drive counter-intuitive price action.

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.

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. blog.gridstatus.io/isone-nuc…

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 blog.gridstatus.io/total-sol…

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.

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

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 gridstatus.io/home.

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: gridstatus.io/live/ercot

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

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.

Energy storage is booming in California, with numerous charging/discharging records being set this month. Great to see @grace_2e and @latimes reporting on this trend by linking to the Record Tracker app available at GridStatus.io/records

Exciting news! We just released version 0.15.0 of our open source library for accessing ISO data Check it out here: github.com/kmax12/gridstatus Here's what's new ⬇️

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

It's starting in @California_ISO