Decipher the past, secure the future.
To truly understand the risks and potential of a PV project, looking at just the last year isn't enough. Our historical performance data enables in-depth long-term analyses and provides the data foundation to assess performance over many years and develop robust, future-proof models.
Years of weather events in 15-minute intervals
Receive a continuous, high-resolution time series of your system’s target performance. By default, our historical data goes back to 2015. Need an even deeper analysis? On request, we can provide a consistent data history for your projects as far back as 2007.
More than data: Unique insights for experts
Validate financial models
Build extremely robust financial models by stress-testing your assumptions against real historical weather years. Assess the risk of low-yield years and create a maximally secure investment foundation.
Analyze long-term trends
Our consistent long-term time series are the perfect basis for scientific or site-specific studies. Analyze the impact of climate trends or recurring weather phenomena on PV performance.
Deeply assess locations
Find out how different locations would have performed during historically extreme years. Gain a deeper understanding of the yield stability and resilience of a site over a long period.
A consistent and complete history
For long-term analyses, data quality and methodological consistency are crucial. We ensure that you receive a reliable and homogeneous database for your evaluations.
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Homogeneous data foundationWe use the same high-precision calculation methodology over the entire period. This avoids breaks or inconsistencies in the data that could arise from changing models.
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Full 15-minute resolutionEven for the past, you receive the full level of detail with 15-minute intervals. This allows for much more precise analysis than daily or monthly data points.
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All system features includedYou can also use all our features in historical analysis: Simulate tracking systems or complex installations with storage to understand behavior over many years.