Energy trading: see earlier, act faster

14.76% outperformance of ECMWF’s sub-seasonal-range forecasts (S2S)*

Seize opportunities, lower risk, and optimize P&L with forecasts powered by Spire’s space-based data. Probabilistic forecasts validated to beat ECMWF’s S2S by 14.76% for surface temperatures at 3-6 weeks.*

Early signals from intraday wind ramps to 45-day weather regime shifts enable your desk to act before competitors.

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Spire Global satellite constellation still

Cold front cascade chart- How weather becomes price

 

Weather moves markets

Weather volatility is now energy market risk

A wind ramp missed by an hour. A cold outbreak or heat wave flagged too late. A weather regime change the desk never saw coming. Each one is a P&L event.

Weather drives power generation, demand, and price. As renewables expand, market volatility increases. Accuracy and speed determine who profits.

Decision-ready intelligence

The Spire advantage for energy traders

Space-based, decision-ready weather intelligence built for how traders work.

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Spire Weather & Climate Cirrus dashboard animation

Energy trading forecasts

Intraday to sub-seasonal: the forecast stack built for energy trading

High Resolution Forecast weather map data
0-7 days

High-Resolution Forecast

Twice-daily 3 km forecasts across the US, Europe, and Southeast Asia. Resolves wind ramps up to 7 days out. Custom domains on request.

  • Catch the ramp
  • Day-ahead positioning

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Optimized Point Forecast chart0-15 days

Optimized Point Forecast

Asset-level forecasts at the specific node calibrated to local site conditions. Hourly-refreshed, with 15-minute granularity out to 15 days.

  • 10,500 sites today
  • Custom locations anywhere in the world

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Power Generation Forecast chart0-15 days

Power Generation Forecast

Wind & solar generation across all US ISO/RTOs and 6 European markets — in megawatts, not just weather.

  • All US markets
  • 6 EU markets

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Power Generation Forecast weather map data
1-45 days

AI-S2S

Daily forecasts with quantified uncertainty, anomalies, and percentiles. Weather regime layer tuned for NA & European trading. Validated to beat ECMWF’s S2S at 3-6 weeks for surface temperatures and 500 mb heights.*

  • 200-member calibrated ensemble
  • Quantifies tail risks (cold extremes, heat waves)

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Cirrus data display platform



The full stack. One Platform. Decision-ready and built for how traders work.

Cirrus puts every Spire forecast alongside the public models you benchmark against on a single trader-grade screen. Compare runs, surface anomalies, and pressure-test your view before the market sees it.

  • Side-by-side model comparisons across Spire and public forecasts
  • Trends, anomalies, and percentiles at a glance
  • Power Generation Forecasts in your market and time zone

Or bring the data into your workflows and models via our weather forecast APIs without the need for a new platform.

Spire Weather & Climate dashboards on laptop and desktop screens

Head-to-head with ECMWF’s S2S: AI-S2S wins at extended range*

Spire AI-S2S vs. ECMWF-S2S vs. Climatology | Jan 1 – Feb 15, 2026



Temperature (2 m) chart comparing Spire AI-S2S data with ECMWF S2S data

500 hPa Geopotential chart comparing Spire AI-S2S data with ECMWF S2S data

Across a 6-week verification window against ERA5, Spire’s AI-S2S outperformed ECMWF’s S2S on both 2-m temperature and 500 hPa geopotential heights (pressure), the two fields keys to forecasting energy demand and weather patterns.*

Each model scored on its native grid against ERA5 reanalysis. Full validation methodology available on request.

*Spire conducted independent validation of data from its AI-S2S model, outside of the training and fine-tuning period, against ECMWF forecast data from January 1-February 15, 2026. The ECMWF data used in this validation is published under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. These results are based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF) – ©2026 European Centre for Medium-Range Weather Forecasts (ECMWF). Source ecmwf.int.

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Spire AI-S2S: A more accurate, differentiated sub-seasonal weather forecast

A 200-member generative AI ensemble, built fully in-house, independent of public sub-seasonal models, and verified to outperform the ECMWF’s sub-seasonal-range forecasts (S2S)* across all forecast lead times, most notably weeks 3-6, when other models trend to climatology.

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How weather-driven volatility in energy markets creates profit opportunities

As renewable energy production surges and electricity production becomes increasingly weather-dependent, forward-thinking businesses are seizing new opportunities to act like energy traders – with the help of AI weather forecasting tools.

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Decoding Radio Occultation, the cornerstone of accurate weather forecasting

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