Gridraven provides three types of line ratings, allowing grid operators to transition from conservative static assumptions to high-precision dynamic capacity:
Rating Comparison and Grid Potential
To understand the operational advantage of Gridraven, it is essential to compare how different rating methods utilize the same physical asset over time.
| Rating Type | Temperature Aware | Wind Aware | Context and Usage |
| Seasonal (SR) | No | No | Fixed, worst-case assumptions used as a safe baseline. |
| Ambient Adjusted (AAR) | Yes | No | Ratings fluctuate with hourly ambient temperature downscaling. |
| Dynamic (DLR) | Yes | Yes | Maximum capacity unlocked by accounting for hyper-local wind cooling. |
Figure 1. Aggregated Line Ratings Over Time. This graph illustrates the "capacity gap." The Seasonal Rating (SR) remains a flat, conservative floor. The Ambient Adjusted Rating (AAR) provides a slight uplift based on temperature. The Dynamic Line Rating (DLR) shows significant peaks, often doubling the capacity during periods of high wind.
How the ratings are calculated?
An example:
| DLR Dynamic Line Rating | AAR Ambient Adjusted Rating | SR Seasonal or Static Rating | |
|---|---|---|---|
| Wind speed | Gridraven prediction, but no less than 0.61 m/s | 0.61 m/s | Configured by customer with monthly resolution |
| Wind direction | Gridraven prediction, but no less than 30°. At under 2 m/s speeds the angle is fixed to 45°. | 90° | Configured by customer with monthly resolution |
| Outside air temperature | From weather forecast | From weather forecast | Configured by customer with monthly resolution |
| Solar irradiation | Clear sky model, up to 1033 W/m2, but accounting with sun’s position and conductor azimuth | 900 W/m2 | Configured by customer with monthly resolution |
| Forecast horizon | Up to 72 hours ahead, depending on the region | Up to 240 hours ahead | Monthly resolution |
| Conductor type | Configured by customer with span-level resolution | Configured by customer with span-level resolution | Configured by customer with span-level resolution |
| Clearance limits | Maximum operating temperature of each span is configured by customer | Maximum operating temperature of each span is configured by customer | Maximum operating temperature of each span is configured by customer |