---
title: "Projected Ground Coverage (ToS🇫🇷, LAOR🇮🇹)"
url: "https://knowledgebase.glintsolar.com/en/article/projected-ground-coverage-tos-laor"
language: "en"
last_updated: "2026-08-25T11:01:59.851Z"
---

# Projected Ground Coverage (ToS🇫🇷, LAOR🇮🇹)

In France and Italy, PV developers are obligated to respect a maximum 40% of ground coverage by the solar panels. In France, the metric we calculate is called Taux d'Occupation du Sol, and in Italy, we use the term LAOS.

## How to use this feature

  
Projected Ground Coverage lives in the **Agrovoltaics** section of your PV configuration. It is available for projects in France and Italy.

1.  **Open the Agrovoltaics section**  
    In the analysis sidebar, expand **Agrovoltaics**. You will find it both at project level and on each individual PV segment.
2.  **Turn on Projected Ground Coverage**  
    Tick the checkbox. Your project's segments are each evaluated separately.
3.  **If you are using single-axis trackers, set the reference angle**  
    A field appears for **Tracker angle normal use**.   
    **For France 🇫🇷**, Enter the tilt that represents your trackers' normal operating position.  
    **For Italy 🇮🇹**, the angle value should be 0, in order to use the maximal projected surface.  
    For fixed-tilt and east-west mounts, the panel's own tilt is used and no extra input is needed.
4.  **Read the result, adjust and compare**  
    On the map, each block of panels is outlined and labelled with its own coverage ratio, so you can see straight away if one your design respects the 40% constraint. Adjust your layout (eg. row spacing) as needed.  
     

## How Projected Ground Coverage Ratio is calculated  
 

![](https://cdn-assets.productfruits.com/686c0757-c003-40ae-bae7-a0d0fdf26ce5)

1.  **Projected panel area**  
    We first calculate the projected ground coverage area of the panels. Which tilt is used: For Fixed-tilt, East-west, we use the panel's configured surface tilt. For single-axis tracker, we use the Tracker angle normal use value you enter
2.  **Projected Ground Coverage Ratio**   
    The projected panel area is then divided by the ground the rows sit on: the panel bands plus the gaps between them. This is the outlined block you see on the map.  
     

![](https://cdn-assets.productfruits.com/96caf310-3788-480a-b256-34288c9c6abc)