Product Launch
New Product Alert! Grid Demand Mid-Term Forecasting
Learn More

Record summer heat is coming, is the grid – and your company – prepared?

The grid continues to enter uncharted territory with a combination of extreme weather and record high demand. Are you and your company prepared for this peak?

Rebecca Schwan
November 18, 2025

Summary

1
2
3
4

Summer blackouts are sometimes unavoidable, and other times, very avoidable. The grid continues to enter uncharted territory with a combination of extreme weather and record high demand. The energy industry needs to have all the best information in order to be prepared for the next peak season. That is why I have pulled together some of our latest intel to help you and your company get ready for the upcoming summer.

Amperon’s summer grid predictions for each ISO

Global temperature anomaly heat map for June-August compared to 1951-1980 average, credited to NASA

A quick glance at the ocean’s temperatures today reveals an Atlantic that feels more like a warm bathtub. This hurricane season is forecasted to be like no other this summer due to these warm ocean conditions and the absence of vertical wind shear in the atmosphere. Hurricanes, heat waves, and more extreme storms add stress to the grid that is already under strain due to the retiring of thermal generation plants and the unpredictability of renewables. Get your AC units ready because this summer is going to be hot, and the grid will be presented with significant challenges.

Download Ebook

Coincident peak season is coming

What is a coincident peak and how does Amperon predict them? Our recent blog post covers how our coincident peak alerts are crucial for making game-time decisions around when to deploy your demand response capacity and save on transmission charges. Don't get caught off guard on the next summer peak.

Read the Blog

Amperon's summer weather outlook

Summer 2023 temperature recap video thumbnail showing NOAA temperature anomaly map of United States

In 2023 we faced the hottest year on record and had 25 extreme weather events. Businesses need to look ahead and plan for the upcoming season. That is why you should watch our recent webinar to hear from our Chief Meteorologist, Dr. Mark Shipham, as he provides his outlook for this summer's weather.

Watch Video & Access Slides

Extreme summer weather got you worried?

Introducing Amperon's new Advanced Weather Package

Our new Advanced Weather Package enables customers to delve deeper into our demand forecasts and conduct extensive weather scenario analysis, aiding in making more informed trading decisions. This package provides;

  • Access to individual demand forecasts based on weather forecasts from DTN, NWS’ NBM, and SPIRE (ERCOT only)  
  • The ability to modify weather scenarios up to two weeks out
  • The ability to adjust temperatures by up to +/- 15 degrees  

Request a Demo

How did Amperon do last summer?

Last summer, Amperon outperformed ISOs across the U.S. in accurately predicting demand during extreme heat events. Below are just three of the major highlights.

Amperon Summer 2023 Recap showing 3.61x, 2.59x, and 2.10x accuracy improvements in CAISO, ERCOT, and PJM forecasts

The future of the energy transition is about making the most of the data available to you. With our demand and renewable forecasts, you'll be better prepared, more informed, and ready to navigate the energy market with confidence. Contact us today to get tailored fit solutions for your unique business needs.

Use Amperon to:

Only 31 days left for free implementation setup.

  • Reduce risk premiums across retail products
  • Price smarter with precise demand forecasts
  • Improve wholesale market performance
  • Automate portfolio analytics
Book a demo

Want 3x more accurate forecasts? Let's talk.

Book a demo

Related articles

Left arrow icon for navigationRight arrow icon for navigation
Blog
November 19, 2025
Can PJM Keep Up with Exponential Load Growth?
Open article
Blog
November 19, 2025
US Winter Weather Outlook 2025–2026: Mild on Paper, Volatile in Practice
Open article
Blog
November 18, 2025
Ontario’s Day-Ahead Market is a Renewables Profitability Test
Open article
Blog
November 18, 2025
US Solar and Wind Curtailment Is Exploding
Open article
Blog
October 6, 2025
Navigating the RTC+B Paradigm Shift
Open article
Case study banner reading “Nailing MISO’s Fall 2025 Coincident Peak” with a computer displaying grid demand forecasts
Blog
November 18, 2025
Nailing MISO's Fall 2025 Coincident Peak: A Week-Ahead Perfect Call
Open article
Amperon MTF model visualization displaying market trends and forecasts
Blog
November 18, 2025
Unlocking Intelligent Term Trading and Seasonal Planning  
Open article
Blog post header with palm tree in hurricane winds asking Why Has This Hurricane Season Been So Quiet with Amperon branding
Blog
November 18, 2025
Why Has This Hurricane Season Been So Quiet?
Open article
Table showing parallel flow congestion scenarios across different energy markets including ISO/RTO, WEIM, WEIS, Markets+, and EDAM with scheduled delivery systems and mitigation strategies
Blog
November 18, 2025
CAISO Breaks the Transmission Hedge
Open article
Amperon blog post graphic asking High ERCOT Demand, Low Wind, and No Price Spike? with load forecast chart for August 18, 2025
Blog
November 18, 2025
High ERCOT Demand, Low Wind, and No Price Spike?
Open article
ISONE May hourly average load comparison chart showing data from 2023, 2024, and 2025 with peak loads around 13,534 MW at HE17-18
Blog
November 18, 2025
Electrification and BTM Solar: Reshaping Demand in ISO New England
Open article
Line graph showing MISO Net Load from 2022-2025 comparing hourly load patterns ranging from 50,000 to 90,000 MW across 24-hour period
Blog
November 18, 2025
The Rise of the Duck Curve in ERCOT: A Shift in Net Demand Peak and the Future of Solar Power Integration
Open article
Amperon market analysis titled Where's the Chaos? ERCOT's Surprisingly Quiet Summer with curved line graph showing peak demand trends from 2022-2025
Blog
November 18, 2025
Where’s the Chaos? ERCOT’s Surprisingly Quiet Summer
Open article
Amperon forecasted load versus prediction time by weather vendor chart for PJM on June 24, 2025, showing settled demand at 158.2 GW with multiple vendor forecasts (ENS_1, NBM, DTN, AG2)
Blog
November 18, 2025
PJM Breaks 10-Year Peak Load Record — and Amperon Saw It Coming 7 Days Out
Open article
Blog
June 18, 2025
PJM Forecast: June 23–25 Heat Wave May Shatter Summer Expectations
Open article
Blog
June 11, 2025
ISONE’s First Heat Spike of Summer- and Amperon Nailed It
Open article
Amperon whitepaper cover titled Cost of Uncertainty: The Challenges and Value of Accurate Price Forecasting with download button, dated March 2025
Blog
November 18, 2025
Why Wholesale Electricity Prices are ESPECIALLY Volatile in Texas
Open article
Blog
June 3, 2025
Powering Profitable Growth for Retail Electricity Providers: Turn Load Forecasting into Your Competitive Edge
Open article
Blog
November 18, 2025
Navigating ERCOT’s 4CP Program: Key Updates and Strategic Preparation for 2025
Open article
Amperon promotional banner announcing sub-hourly grid forecasts for European TSOs now available, featuring transmission tower with geometric orange and blue design elements
Blog
November 18, 2025
Europe’s Shift to 15-Minute Power Markets: How Amperon Helps You Prepare for Market Evolution
Open article
Amperon blog post graphic titled "The Shape Shift: How Texas Net Demand Transitions from Shoulder to Summer" with wind turbine image
Blog
November 18, 2025
The Shape Shift: How Texas Net Demand Transitions from Shoulder to Summer
Open article
Amperon presentation slide titled "ERCOT's Evolving Price Dynamics 2021-2024 Analysis" with sunset transmission tower image
Blog
November 18, 2025
ERCOT’s Evolving Price Dynamics [2021-2024 Analysis]
Open article
A promotional image announcing the introduction of real-time grid price forecasts now live in ERCOT, featuring Amperon branding
Blog
November 18, 2025
Amperon Expands Forecasting Capabilities with Real-Time Price Predictions in ERCOT
Open article
Blog
November 18, 2025
MISO’s VOLL Change Could Reshape Scarcity Pricing and Reliability Signals
Open article
Blog
November 18, 2025
Why Behind-the-meter Solar Complicates Spring Forecasting
Open article
Comparison table showing solar and wind forecasting capabilities across Machine Learning, Physics-based, and Amperon (ML+PB) approaches for partial asset metadata, soiling, equipment degradation, biased weather, and curtailment
Blog
November 18, 2025
How to Forecast Energy Generation for Wind or Solar Assets
Open article
Day-ahead grid MAPE summary table for 2024 showing 12-month average comparison of ISO MAPE, Amperon MAPE past models, current models, and improvement percentages across multiple ISOs (AESO, CAISO, ERCOT, ISONE, MISO, NYISO, PJM, SERC, SPP, CH, DK, ES, IE)
Blog
November 18, 2025
Always Innovating: Amperon’s New Techniques to Improve Energy Forecasting
Open article
Amperon recap slide for April 7 titled "Why prices in ERCOT soared to $4000 per MW" with pastoral field landscape at golden hour
Blog
November 18, 2025
High Net Demand and Outages Caused Recent Price Spike in ERCOT
Open article
Amperon ebook promotional banner "Price Forecasting: Cost of Uncertainty - The Challenges and Value of Accurate Price Forecasting" with free ebook download button on gradient blue-green background
Blog
November 18, 2025
Are ERCOT’s morning ramp DA prices really higher than summer?
Open article
Infographic titled "Types of Data Relevant to Both Solar and Wind Assets" showing three categories: Nameplate Capacity, Location of Asset, and Historic Curtailment with wind turbines and solar panels imagery
Blog
November 18, 2025
Inside our Data: Intro to Renewable Asset Data
Open article
Amperon promotional slide "Adapting to OMIE's 15-Minute Transition: How Granular Forecasts Can Help You Stay Ahead" with laptop showing asset-level solar sub-hourly forecast for January 12, 2025
Blog
November 18, 2025
Adapting to OMIE’s (Portugal and Spain) 15-Minute Transition: How Granular Forecasts Can Help You Stay Ahead
Open article
Blog
November 18, 2025
What the beginning of daylight savings time means for peak pricing
Open article
Amperon presentation slide "How the Grid Changed in 2024" with aerial view of large-scale solar farm installation in agricultural setting at sunset
Blog
November 18, 2025
How the Grid Changed in 2024
Open article
Amperon recap slide for February 14-20 titled "Another cold week on the grid, another good week for Amperon's demand forecasts" with wind turbines in snowy landscape
Blog
November 18, 2025
Another cold week on the grid, another good week for Amperon’s demand forecasts
Open article
Blog
November 18, 2025
The Future of Western Power Markets: Why Implementing a Day-Ahead Market Matters
Open article
Blog
November 18, 2025
Harnessing the power of sub-hourly and hourly forecasts for wind assets
Open article
Blog
November 18, 2025
Forecasting for the Super Bowl: How much does the big game really affect demand?
Open article
Amperon promotional banner stating "33% more accurate in MISO" with blue gradient background and solar panels with wind turbines imagery
Blog
November 18, 2025
Best Demand and Net Demand Forecasting Calls to End 2024
Open article
Amperon slide featuring Punxsutawney Phil prediction reference titled "What Punxsutawney Phil's prediction for 6 more weeks of winter really means for the grid" with snowy groundhog image
Blog
November 18, 2025
What Punxsutawney Phil’s prediction for 6 more weeks of winter really means for the grid
Open article
Blog promotional graphic on navy background titled "New Blog: Why a hybrid regression/ML approach outperforms in energy forecasting" with layered visualization showing Linear Regression, Boosted Trees, and Additional secondary models
Blog
November 18, 2025
Why a hybrid regression/ML approach outperforms in energy forecasting
Open article
Blog
June 3, 2025
Europe 2024 Best Amperon Forecasting Calls and Trends to Watch
Open article
Title slide reading "Part 1: Inside Our Data: The Importance of Granular Weather Data" by Lily Bowdler from Amperon
Blog
November 18, 2025
Inside our Data: The Importance of Granular Weather Data
Open article
Bar chart showing 2025 Highest ISO Demand Levels So Far across four ISOs: ERCOT (68.9 GW), PJM (126.8 GW), MISO (97.9 GW), and SPP (43.1 GW)
Blog
November 18, 2025
Déjà vu? With one cold snap down, will we have a repeat of last MLK weekend?
Open article
Blog promotional slide "The first winter cold snap is here, but will it break records?" with laptop displaying PJM weather data showing 5-year, 10-year, and 30-year normals for various cities
Blog
November 18, 2025
First winter cold snap is here, but will it break records?
Open article
Blog
June 3, 2025
Looking Back (and Ahead): A Year-end Q&A with Amperon CEO Sean Kelly
Open article
Line graph comparing Ireland Wind Generation forecasts for August 20-26, showing Actual Wind, Amperon Day Ahead Wind Forecast, and EirGrid Day Ahead Wind Forecast (duplicate of image 43)
Blog
November 18, 2025
How strong winds in Ireland left power market stakeholders exposed
Open article
Line graph of CAISO demand for Indigenous Peoples Day 2024 (October 11-14), showing Duck Curve pattern and comparing Amperon Day Ahead, ISO Day Ahead, and Actuals
Blog
November 18, 2025
Forecasting for the holidays: How holidays affect demand patterns
Open article
Blog
June 3, 2025
When tech buys nuclear, who wins?
Open article
Blog
November 18, 2025
Unlocking new standards in solar forecasting to maximize asset efficiency
Open article
Marketing graphic titled "What's Happening with Price Forecasting? A Q&A with Amperon CEO Sean Kelly" featuring professional headshot of Sean Kelly
Blog
November 18, 2025
What’s Happening with Price Forecasting? A Q&A with Amperon CEO Sean Kelly
Open article
Blog
November 18, 2025
Taking Advantage of Amperon’s Net Demand Forecast on Snowflake
Open article
Line graph showing ES (Spain) Demand for August 15 Feast of Assumption, with table comparing Peak Demand, Amperon APE, and ES APE percentages across four dates, plus lower panel showing electricity production and spot prices
Blog
November 18, 2025
2024 Energy Demand Trends: What Happened During 3 Recent EU Holidays
Open article
Blog
June 3, 2025
PJM Capacity Auction: Record Pricing and Delays
Open article
Multi-panel visualization showing ERCOT Demand for July 1-5, including line graphs comparing Amperon and ERCOT forecasts, data tables showing MAPE percentages for different dates, and gauge charts showing average MAPE (1.02% AMP, 1.69% ISO)
Blog
November 18, 2025
Amperon’s best energy forecasting calls for Summer 2024
Open article
Marketing text overlay on transmission tower background stating "Amperon's new price forecast tackles ERCOT's volatility and helps market participants mitigate risks"
Blog
November 18, 2025
Amperon’s new price forecast tackles ERCOT’s volatility and helps market participants mitigate risks
Open article
Marketing graphic announcing "Expanding Amperon's coverage on Snowflake" for Demand and Net Demand across North America and Europe ISO/TSOs, featuring screenshot of Snowflake marketplace interface
Blog
November 18, 2025
Expanding Amperon’s coverage on Snowflake: Demand and Net Demand for North America and Europe ISO/TSOs
Open article
Video thumbnail from webinar titled "Powering Data-Driven Decisions: Enhance Your Energy Trading Game with Amperon + Snowflake" featuring Amperon and Snowflake logos, dated September 26, 2024, with transmission tower image and video progress indicator show
Blog
November 18, 2025
Powering Data-Driven Decisions: Enhance your energy trading game with Amperon & Snowflake
Open article
Photograph of single wind turbine on hilltop with autumn-colored foliage in foreground against clear blue sky
Blog
November 18, 2025
Analysis of spring curtailments in preparation for fall
Open article
Marketing graphic announcing "Introducing Asset-Level Wind Short-Term Forecasts" with photograph of wind turbines against mountain landscape backdrop
Blog
November 18, 2025
Expanding generation forecast capabilities into wind
Open article
ERCOT West Zone Net Demand Short-Term Forecast for August 11-13, 2024, showing three stacked area graphs for Net Demand, Solar Generation, and Wind Generation, with explanatory text about negative net load, curtailments, and congestion implications
Blog
November 18, 2025
Granular insights from grid net demand forecasts: Importance of zone-level forecasting
Open article
Blog
December 2, 2025
Why solar forecasts and accuracy metrics are a big deal
Open article
Satellite view from space showing large hurricane system with visible eye wall approaching Caribbean islands, showing Earth's curvature against black space background
Blog
November 18, 2025
Weaker hurricane season due to Saharan dust
Open article
Close-up photograph of solar panel array showing dust, dirt, and debris accumulation on photovoltaic panel surfaces, demonstrating need for maintenance
Blog
November 18, 2025
Hailstorms: How they can impact your solar farm
Open article
Nighttime satellite image showing hurricane system with well-defined spiral structure making landfall on southeastern United States coastline with visible city lights
Blog
November 18, 2025
Forecasting for SERC During Tropical Storm Debby
Open article
Photograph of dark chalkboard filled with mathematical equations, formulas, and diagrams including algebraic expressions, chemical structures, geometric drawings, and calculus notations written in white chalk
Blog
November 18, 2025
The different kinds of forecasting metrics
Open article
Blog
November 18, 2025
Amperon’s industry-leading forecasts now available to transact on the Microsoft Azure Marketplace
Open article
Aerial photograph of wind farm installation with three large white wind turbines on rolling green hills with mountains in background and scattered buildings in rural landscape
Blog
November 18, 2025
Reminiscing on the summer’s heat waves... so far
Open article
Marketing graphic announcing "Introducing Solar Sub-Hourly Generation Forecasts" with photograph of solar panel installation on ground-mounted framework in grassy field
Blog
November 18, 2025
Harnessing sub-hourly solar forecasts for power markets trading
Open article
Blog
November 18, 2025
Amperon’s methodologies: AI-powered forecasting for the energy transition
Open article
Blog
June 3, 2025
The Double-Edged Sword: Using LLMs in Electricity Market Forecasting
Open article
Satellite image of two tropical cyclone systems near Asian coastline showing clear hurricane eyes and spiral cloud formations over ocean waters with land mass visible on left side
Blog
November 18, 2025
Advanced stress testing for extreme weather
Open article
Blog
June 3, 2025
Enabling Amperon’s short-term grid forecast with Snowflake
Open article
Upward angle photograph of tall electrical transmission tower structure against blue sky with white clouds, showing multiple levels of power line connections and lattice framework construction
Blog
November 18, 2025
Amperon’s best forecasting calls this Spring
Open article
PJM heat wave peak demand forecast comparison table showing Amperon APE vs PJM APE for June 18-23
Blog
November 18, 2025
PJM Heatwave Analysis: Forecasting for 90-degree heat and a new federal holiday
Open article
Seattle city skyline at night featuring the Space Needle with illuminated buildings
Blog
November 18, 2025
A deep dive into what happened MLK weekend in the Pacific Northwest and West Coast
Open article
30-year temperature normals table showing forecasts for cities from Newark to Rockford, June 12-26
Blog
November 18, 2025
June 2024 heat wave - PJM
Open article
Houston demand chart showing May 16 power outage affecting 1 million people with Amperon's weather actuals vs actual load
Blog
November 18, 2025
Storm Analysis: ERCOT’s intense may weather
Open article
Amperon blog header image asking "What is the true carbon impact of your renewable assets?" with solar panels and wind turbines
Blog
November 18, 2025
What is the true carbon impact of your renewable assets?
Open article
White electric fan with yellow and blue ribbons blowing against bright yellow background
Blog
November 18, 2025
Record summer heat is coming, is the grid – and your company – prepared?
Open article
Blog
June 3, 2025
The Western Interconnection’s big day-ahead decision
Open article
Amperon promotional banner introducing Ensemble Forecast and Advanced Weather Package with laptop display
Blog
November 18, 2025
Introducing Amperon's Ensemble Forecast, NBM Integration, and Advanced Weather Package
Open article
Aerial view of large-scale solar panel farm with organized rows in rural landscape
Blog
November 18, 2025
Coincident peak season is coming
Open article
Desert landscape with red sand, sparse vegetation, and blue cloudy sky
Blog
November 18, 2025
WRAP: New forecasting requirements for Western states’ resource adequacy coalition
Open article
Magnifying glass on business charts and graphs with eyeglasses, representing data analysis
Blog
November 18, 2025
Amperon’s 6 best forecasting calls in 2024 so far
Open article
Power transmission towers and lines crossing snow-covered winter landscape under blue sky
Blog
November 18, 2025
How stable is our grid?
Open article
Total solar eclipse showing sun's corona around dark moon disc against black sky
Blog
November 18, 2025
How the solar eclipse will affect grid stability
Open article
Blue ethernet cable with US hundred dollar bills representing energy cost savings and electricity pricing
Blog
November 18, 2025
The economics of the clean energy transition
Open article
Blog
June 3, 2025
How weather impacts energy demand & prices
Open article
Groundhog (marmot) standing on snow looking alert, associated with weather prediction tradition
Blog
November 18, 2025
How Punxsutawney Phil’s predictions affect the energy grid
Open article
Blog
November 18, 2025
Navigating error measurements for wind and solar generation - the case for cnMAE
Open article
Blog
June 3, 2025
Unlocking solar generation insights with Amperon's renewable forecasts
Open article
Blog
June 3, 2025
Amperon's 2023 Recap
Open article
Blog
June 3, 2025
Morning Ramp Ups and Weather Misses: ERCOT Winter Storm Recap
Open article
Blog
June 3, 2025
Cold Winter Storm Could Bring Trouble to ERCOT
Open article
Blog
June 3, 2025
The Duck Curve and Utilities’ Emerging Seasonal Risks
Open article
Blog
June 3, 2025
Why Advanced Forecasting is Needed for a Solar Powered Future
Open article
Blog
June 3, 2025
Amperon Launches in SERC
Open article
Blog
June 3, 2025
Amperon’s net demand and renewable forecasts are now in CAISO
Open article
Blog
June 3, 2025
How the Transition from Gas to Electric Heating is Changing Demand Forecasting
Open article
Blog
June 3, 2025
How Munis and Coops Can Benefit from Advanced Forecasting Platforms
Open article