Why irec index?

• Quantify the production variation due to variation in resources

An indicator for your reporting: What level of resource was observed last month compared to the long-term average?

• Explain production deviation with the budget

How much of the difference can be explained by the resource itself?

• Estimate the effective P50 value

What is the expected long-term average production capacity based on my plant's current performance?

• Monitor the production capacity of your asset portfolio and detect performance drifts

Which assets should I focus on, for a more in-depth analysis?

• Directly comparable to the output of your power plants

The index reflects the variation in production over time. For example, the solar index takes into account the effects of temperature, not just irradiation, just as the wind index takes into account changes in wind farm output, not wind speed.

• Consistent over time to provide a reliable long-term perspective on production

Measured data on site (irradiation or wind speeds) are only available since commissioning and are associated with a risk of drift over time (deterioration in measurement quality, changes in measurement conditions, sensor calibration, etc.).

• A long-lasting tool involving few technical and financial constraints

Easier to implement over the long term (i.e. logistics/maintenance of the measurement installation over more than a decade)

• Independent from the plant itself and generated by a third part expert