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Panoramic view of wind turbines on the Blue Ridge Mountains

Regional wind and solar power forecasts

Make confident, data-driven decisions with regional energy forecasts that offer up to 23% improvement over public forecasts.

95%

accuracy for day-ahead energy forecasts

9.6%

average improvement over public ISO forecasts

9

North American ISO/RTO regions

Renewable energy power forecasts for North American ISO/RTO regions

AESO

Wind power forecasts

Regional
Farm level

Solar power forecasts

Regional
Farm level

BPA

Wind power forecasts

Regional
Farm level

CAISO

Wind power forecasts

Regional and zonal
Farm level

Solar power forecasts

Regional and zonal

ERCOT

Wind power forecasts

Regional
Farm level

Solar power forecasts

Regional
Farm level

ISO-NE

Wind power forecasts

Regional
Farm level

MISO

Wind power forecasts

Regional
Farm level

Solar power forecasts

Regional
Farm level

NYISO

Wind power forecasts

Regional
Farm level

Solar power forecasts

Regional
Farm level

PJM

Wind power forecasts

Regional
Farm level

Solar power forecasts

Regional

SPP

Wind power forecasts

Regional
Farm level

Image source: Federal Energy Regulatory Commission (FERC)

More accuracy, less risk

In today’s dynamic energy landscape, accurately forecasting variable renewable energy (VRE) generation is crucial for effectively integrating wind and solar energy into the grid. Minimizing VRE forecasting errors at the systemwide level reduces balancing costs, curtailments, and reserve requirements while improving system flexibility and reliability.

Centralized forecasting reduces the natural uncertainty of variable renewable energy generation by aggregating all the renewable energy sources (RES) in a balancing region. High-quality regional forecasts, from minutes to days ahead, help asset owners, project managers, and energy traders make confident, data-driven decisions to effectively manage investments, reduce future risks, and gain a competitive edge in energy markets.

Plan, invest, and trade with confidence

Vaisala Xweather combines cutting-edge weather and environmental modeling, robust data science, and powerful machine learning to produce accurate energy forecasts and actual power estimates for wind and solar projects for nine North American RTO/ISO regions.

  • Look ahead with 7-day power forecasts at 1-hour intervals at the regional and plant level for real-time and day-ahead markets.

  • Calibrated prediction intervals for every forecast.

  • Look back at site-level estimated actual power data in 1-hour intervals for the last 24 hours.

Improve your situational awareness

The Xweather situational awareness tool provides an animated six-day global forecast of the key weather parameters for renewable energy. Map layers include wind speed and direction at 100-meter hub height, global horizontal irradiance, ground level, cloud cover, pressure, precipitation, snow depth, and air temperature.

In the United States and parts of Canada, the tool also delivers an intuitive visualization of renewable energy production. Circles mark the location of energy projects with color indicating the project’s estimated energy output as a percentage of its nameplate capacity.

Three ways to integrate energy forecasts into your operations

Best for insights

For maximum flexibility and insights, unlock our full suite of energy forecasting and situational awareness tools in the Xweather renewable energy portal. Make it your own with configurable dashboards, charts, and reports complemented by powerful verification tools and fast API access.

Try it free for 30 days

Best for integrations

Energy traders, power companies, asset managers and developers use Yes Energy to make sense of the complex, rapidly changing power market. Our partnership with Yes Energy enables Xweather subscribers to access regional power forecasts within Yes Energy’s products at no additional cost.

Vaisala Xweather + Yes Energy

Best for fast access

The Snowflake data marketplace gives you instant access to centralized and site-level wind and solar energy data for 9 North American RTO/ISO regions. See the 7-day forecast and the last 24 hours estimated actual power for the region and each site. All data sets are live and ready to query.

Try it free for 7 days

Get started with 30 days of free trial access to the Xweather energy portal

Your questions answered

We're here to help. Get in touch today, and let us put our expertise to work for you.