Specialized in short and medium-term solar and wind energy forecasting, Steadysun excels in providing services aimed at facilitating the integration of variable renewable energies into electrical systems.
Why accurate forecasts matter
Solar and wind power are inherently tied to meteorological conditions. This variability impose a major constraint on the entire electricity value chain. Whether for transmission and distribution System operators, power plant managers, or electricity traders, all need the most reliable and the most accurate electricity production forecasts to operate efficiently.
To address these needs, Steadysun relies on FROGCAST’s probabilistic and high-resolution forecasts.
Benchmark results
Steadysun recently took part in several benchmark exercises in Spain and Romania. These evaluations compared their forecasts with those of other market players. In the last three benchmarks, Steadysun consistently ranked among the top performers. Their new forecasting system, enhanced with FROGCAST data, improved accuracy by around 5% to 10% on average over a year.
These rigorous comparison exercises lasted between five and six months. They involved 6 to 11 participants and covered multiple solar and wind power plants in both Spain and Romania.

A strengthened partnership
These results solidify Steadysun’s position as a leader in renewable energy forecasting. We take pride in contributing to this success by providing precise and reliable meteorological forecast data.
The interfacing between Steadysun’s and FROGCAST’s information systems has significantly strengthened the operational services’ performances by integrating FROGCAST’s meteorological forecasts. This partnership underscores the crucial importance of relying on the highest-quality meteorological data to optimize solar and wind energy production forecasts.
Congratulations to Steadysun for their outstanding work, and a big thank you to them for their trust!
Wondering if our weather API could benefit you too?
If you’re curious about how a weather API can support your operations, check out our article Why use a weather API? for detailed insights.
For those unfamiliar with the concept, we also invite you to read How to use the FROGCAST weather REST API? to understand how APIs work and how they can streamline your data integration needs.