Nonagon

Stress-Test Your Portfolio Against 70 Weather Years

Turn 70+ years of ERA5 weather into hourly wind, solar, consumption, hydro, and residual-load scenarios for any capacity period out to 2050.

Your Weather-Scenario Dataset for Quantitative Modelers, Asset Owners, and Investment, Risk, and Planning Teams 

Volue Climate Data turns decades of weather into consumption and hourly production series per technology for any future capacity period. 

Wind, solar, hydro, and demand swing materially from year to year with the weather. If you base your asset valuation on just a single year or a long-term average, you miss the full range of what could happen - both the risks and the opportunities. To run long-term strategic decision processes, such as investments or PPAs several decades ahead, you need the full range of weather outcomes at hourly resolution.   

Volue Climate Data applies decades of historical weather to future capacity periods out to 2050. It produces hourly power production and consumption scenarios across European price areas, ready to use through an API, Excel Add-In, and Python client.   

KEY FEATURES

Weather-Scenario Modeling

Apply any historical weather year to any future capacity period to simulate hourly output. Volue models wind, solar, consumption, residual load, hydro, and temperature from recent actuals, then scales to your chosen capacity, for example 1980 weather on 2035 capacity. 

Seven Decades of Weather

Built on the ERA5 reanalysis from ECMWF, spanning 1950 to today. More than 70 weather years give you the full range of outcomes at hourly resolution across European price areas. 

The Basis for Normals

Includes the same 30 weather years Volue uses to compute its normals, giving you a consistent, defensible baseline that aligns with the rest of Volue Data & Forecasts. 

Always Current

Wind and solar refresh up to four times a year with capacity assumption updates and model retraining. Consumption and residual load refresh daily using a Kalman-filter.

Weather-Scenario Modeling

Apply any historical weather year to any future capacity period to simulate hourly output. Volue models wind, solar, consumption, residual load, hydro, and temperature from recent actuals, then scales to your chosen capacity, for example 1980 weather on 2035 capacity. 

BENEFITS

Robust Long-Term Decisions

Hourly updates let traders and operators adjust positions immediately as conditions change, reducing exposure to price spikes and forecast surprises.

Quantified Weather Risk

Measure inter-annual variability and the downside and upside across more than 70 weather years.

No In-House Assembly

Skip the costly, inconsistent work of turning raw reanalysis into multi-decade, hourly, area-level series.

A Strategic Planning Foundation

Work from one weather-scenario foundation for long-term planning and asset valuation.

Every Commodity, One Basis

Compare wind, solar, hydro, and demand across price areas on a single, comparable basis.

Data Ready for Your Modeling

Work with multiple data curves in your preferred format and access via API or Excel Add-In.

USE CASES

Quantitative modelers need a clean, hourly, multi-decade input layer to build and backtest long-term models. Volue Climate Data supplies it as a ready-to-use dataset, combining any historical weather year with any future capacity period. You model against a consistent foundation instead of assembling and aligning decades of weather data in-house.

Investment and risk analysts at investors and banks evaluate asset revenue and portfolio downside, where a single-year view hides the rare, extreme outcomes. With Volue Climate Data, you stress-test revenue strategies across more than 70 weather years. Because scenarios stay consistent across commodities and areas, you can quantify downside and upside at portfolio level and defend the result. 

Owners and operators of wind, solar, and hydro assets struggle to separate weather-driven swings from asset performance. Volue Climate Data quantifies how good or bad each weather year is for a given commodity and area. That gives you a defensible normal and a clear view of resource risk across your assets.

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