---
title: "Losses in Glint Solar vs. losses in PVsyst"
url: "https://knowledgebase.glintsolar.com/en/article/losses-in-glint-solar-vs-losses-in-pvsyst"
language: "en"
last_updated: "2024-04-23T12:06:17.325Z"
---

# Losses in Glint Solar vs. losses in PVsyst

The table below shows how losses recorded in Glint Solar correspond to losses recorded in PVsyst.

| **Glint Solar** | **PVsyst** | **Notes** |
| --- | --- | --- |
| Meteo data base | Meteonorm 8.2.0.21236 |  |
| Horizon shading | Farshading loss (only in losses diagram) |  |
| Dirt and soiling | Soiling loss |  |
| Near shading: irradiance loss | Shading loss |  |
| Reflection (IAM) | IAM loss (only in losses diagram) |  |
| Bifaciality | \- | In PVsyst, "bifaciality" is the performance factor of the back side relative to the front side. For example, if the bifaciality is 0.7, this means that the back side will be 70% as good as the front side. In Glint Solar, "Bifacial gain" instead corresponds to the bifacial gain, which is displayed as a gain in the loss diagram in PVsyst. |
| Irradiances dependencies | \- | Glint Solar does not explicitly state how much is lost due to low irradiation levels. However, this is taken into account in the conversion of irradiation into electricity. |
| Near shading: electrical loss according to strings | Electrical losses due to shading (only in losses diagram) |  |
| Power tolerance of modules | Nameplate rating loss |  |
| Temperature dependencies | Temperature loss (only in losses diagram) |  |
| Spectral correction | Spectral correction (only in losses diagram) |  |
| Light induced degradation (LID, initial) | Light-induced degradation |  |
| Mismatching Modules | Mismatch losses | Match losses due to shading are calculated in "electrical losses due to shading" in Glint Solar. |
| Mismatching Strings |  |  |
| Mismatching back face |  |  |
| DC cabling | Wiring losses | Glint Solar captures "connection losses". Connection losses are the losses between cabling and diodes. |
| AC cabling |  |  |
| HTA cabling |  |  |
| Transformer |  | Glint solar does not yet support transformers. |
| Inverter | Inverter | Only in the pattern of losses. It is not possible to make inverter losses. |
| Auxiliaires | \- | Glint Solar has no “auxiliary” losses. To add these losses, you can add the losses to other loss categories (fouling or conductors). |
| Additional | \- | Glint Solar does not have an "other" loss category. |
| Unavailability of the system | Availability Loss |  |
| Vieillissement | Annual Degradation |  |
| Albedo | Albedo 0,2 |  |

## Research project with IFE

If you're interested in learning more about our research project with IFE and how we compare with PVSyst, read the report here:

🧮 [Comparison between the Glint Solar PV model and PV syst](https://glintsolar.notion.site/Comparison-PVsyst-and-Glint-39f91098f8f2427196f8018290a3c513?pvs=4)

## Additional resources

Learn more about the losses recorded in Glint Solar [here](https://knowledgebase.glintsolar.com/en/article/losses).

You can also read about the methodologies used for the simulation [here](https://knowledgebase.glintsolar.com/en/article/pv-analysis-methodology-and-data-sources).

Are you looking for some more guidance on the PV concepts? Check out our [Solar Site planning guide](https://knowledgebase.glintsolar.com/en/article/intro-to-solar-site-concepts)!