Enhanced Accuracy and Transparency of European Demand Forecasts

Amperon, a leading energy forecasting platform trusted by utilities and grid operators worldwide, integrates downscaled Meteomatics' ECMWF data to enhance the accuracy, transparency, and historical validation of its European forecasts.

With Meteomatics’ robust API and access to the ECMWF’s historical forecast archive, Amperon can now deliver up to five years of historical forecast data to help customers evaluate and validate model performance over time—a capability increasingly demanded by energy traders and utilities looking for transparency and back-testable performance data.

Unlocking vintage archives for backtesting accuracy

Weather data is a top priority for Amperon’s customers in Europe, where markets are becoming more volatile, interconnected, and AI-driven. According to the 2025 Dynata Energy Market Survey, 64% of energy companies spend over $20K annually on weather data, and inaccurate forecasts cost traders up to 5% in yearly profit loss.

To address this, Amperon is building a "vintage archive" of ECMWF forecasts, enabling customers to go beyond the typical one-year lookback window and evaluate models against multi-year historical forecasts. This capability supports enhanced risk modeling, strategy optimization, and compliance readiness in fast-evolving energy markets like CAISO, ERCOT, and European TSOs.

Seamless ECMWF integration through Meteomatics’ API

The collaboration also unlocks real-time forecast improvements, as ECMWF becomes a default input in Amperon’s European weather models. Meteomatics' high-performance API ensures seamless delivery of downscaled ECMWF forecast data, helping Amperon clients access consistent and high-quality weather inputs for demand forecasts. As Jon Ecker, GM EMEA at Amperon, says, “Working with Meteomatics has been seamless — their robust API made it incredibly easy to integrate this critical data into our platform.”

A shared vision for transparency and AI-readiness

Amperon and Meteomatics are committed to improving forecast transparency, AI-readiness, and operational confidence for energy market participants. With 66% of energy companies using weather data daily or weekly and 86% increasing their reliance on climate data over the next five years, the need for high-quality, easily integrated weather data has never been greater.

By leveraging downscaled ECMWF’s trusted European forecast model through Meteomatics’ value-adding infrastructure, Amperon is delivering on its promise: actionable insights, historical transparency, and predictive power—now backed by ECMWF.

Powering AI-driven forecasting with Meteomatics' precision and performance

Meteomatics’ high-performance Weather API, engineered for scale, speed, and accuracy, makes it possible for Amperon to operationalize ECMWF data across Europe, with 90-meter downscaling. With this integration, Amperon can seamlessly deliver real-time forecasts and five years of historical forecast data from ECMWF to its customers. This boosts trust and transparency in model validation and enables more resilient strategies for energy trading, load forecasting, and infrastructure planning.

Meteomatics delivers hyper-granular weather data, down to 90-meter resolution, across all relevant timescales. Amperon gains access to a 7+ petabyte global weather database, built for high-frequency data queries with millisecond-level response times through a single API. That speed matters when forecast accuracy impacts financial performance in fast-moving European power markets.

In a space where 3–5% of trading profits are lost annually due to poor forecasts, Meteomatics’ infrastructure allows energy innovators like Amperon to confidently scale their models across volatile weather regimes, while maintaining forecast fidelity and traceability.

Powerful solutions for transmission and distribution system operators

We at Meteomatics offer tailored solutions based on our powerful Weather API. Meteomatics' weather and climate database contains a wealth of global weather information (>7 petabytes) across all timescales, at incredible detail (90-meter resolution). Our weather API offers everything you need from one source, through just one interface. The data can be retrieved within milliseconds, allowing real-time retrieval. Meteomatics improves the operations of >100 customers from the energy sector, resulting in strong industry expertise that allows us to tailor our solutions to specific industry needs.