feat(envfp): implement feedback

Author: bene2k1

environmental-footprint/environmental-footprint/additional-content/environmental-footprint-calculator.mdx

@@ -17,13 +17,14 @@ This page details the methodology used to calculate the environmental footprint
 
 ## Methodology Overview
 
-Our Methodology is based on the [ADEME Product Category Rules (PCR)](https://librairie.ademe.fr/produire-autrement/6105-methodological-standard-for-the-environmental-assessment-of-datacenter-it-hosting-services-and-cloud-services.html) for Datacenter and Cloud services, which provide a standardized framework for calculating and reporting the environmental impact of datacenters and cloud services. These rules are designed to ensure consistency, transparency, and comparability in the assessment of environmental footprints across the industry.
+Our Methodology is based on the [ADEME (French Government Agency for Ecological Transition) Product Category Rules (PCR)](https://librairie.ademe.fr/produire-autrement/6105-methodological-standard-for-the-environmental-assessment-of-datacenter-it-hosting-services-and-cloud-services.html) for Datacenter and Cloud services, which provide a standardized framework for calculating and reporting the environmental impact of datacenters and cloud services. These rules are designed to ensure consistency, transparency, and comparability in the assessment of environmental footprints across the industry.
 
 The ADEME PCR specifies the methodology for conducting [Life Cycle Analysis (LCA)](/environmental-footprint/environmental-footprint/concepts/#life-cycle-analysis-lca) for datacenter operations, which includes the evaluation of energy consumption, greenhouse gas emissions, resource usage, and other environmental impacts associated with the lifecycle of datacenter infrastructures and cloud services. This lifecycle covers all stages from raw material extraction, manufacturing, and transportation, to the use and end-of-life disposal of datacenter equipment.
+The stages of the lifecycle that are really significant in the total impact of a server are its manufacturing and its use. We will therefore focus on these two stages in the rest of this documentation.
 
 By adhering to PCR guidelines, we provide reliable and standardized environmental impact data. This facilitates better decision-making for both providers and consumers of datacenter and cloud services, as it allows for clear comparisons and informed choices regarding sustainability.
 
-However, to provide a more comprehensive and realistic assessment, we have extended this methodology to include several additional elements that are integral to the overall environmental impact of our operations.
+In addition, to provide even more comprehensive and realistic assessment, we have extended this methodology to include several additional elements that are integral to the overall environmental impact of our operations.
 
 These additional elements cover:
 
@@ -55,7 +56,7 @@ The details of the calculations for each of these elements are detailed below. 
 All calculations will use the following variables:
 
 <Message type="note">
-    The abbreviations used below are based on the French phrases for these terms.
+    The acronyms used below are based on the French phrases for these terms.
 </Message>
 
 - [dU](/environmental-footprint/environmental-footprint/concepts/##du-duration-of-use) : duration of use of the equipment included in the study
@@ -73,12 +74,22 @@ All calculations will use the following variables:
 
 ### Datacenter and technical environment
 
-To calculate the impact of the datacenter and the technical environment, it is necessary to have either a preliminary study carried out by the hardware suppliers and datacenter administrators or a quote including all the components. Without such a study, we have chosen to use ADEME data to evaluate the impact of the construction of the datacenter and technical environment (air conditioning and power supply system).
+To calculate the impact of the datacenter and the technical environment, it is necessary to have either a preliminary study carried out by the hardware suppliers and datacenter administrators or a quote including all the components. Without such a study, we have chosen to use [ADEME](https://data.ademe.fr/) data to evaluate the impact of the construction of the datacenter and technical environment (air conditioning and power supply system).
 
 To allocate the environmental impact of the manufacturing of the datacenter and the technical environment we multiply the proportion of the datacenter lifespan that corresponds to the device's usage time by the specific equipment's power usage relative to the total power reserved by customers in the datacenter by the datacenter emission factor. 
 
 <Lightbox src="scaleway-allocation-rules-dc-techenv.webp" alt="" />
 
+#### Calculation example
+
+For the use of an Elastic Metal server with a power of 110w for 100 hours in a 2000m2 datacenter which has a power of 3000 kw (3e+6w) and a lifespan of 25 years (219 000 hours) and considering via ADEME estimates that the impact of the manufacturing of this datacenter and its technical environment is 3.3e+6 kgCo2e, we make the following calculation:
+
+```math
+DC&TEenv = (100 / 219 000) * (110 / 3e+6w) * 3,3e+6 = 0,055 kgCO2e
+```
+
+Therefore 0,011 kgCO2e is added to the total manufacturing impact for the use of this server. 
+
 ### Network
 
 To calculate the environmental impact of your large-scale use of the products, we include part of the impact of manufacturing the network machines that are necessary for the operation of our products. To do this, we divide the impact of manufacturing network equipment over its entire lifespan and attribute this impact based on the energy consumption of the equipment used in order to assign a proportional share of the environmental impact to each piece of equipment. Finally, we estimate the impact of manufacturing the equipment using the [boavizta](https://boavizta.org/) database.
@@ -103,24 +114,19 @@ The manufacturing impact is prorated based on the server's lifespan and the dura
 
 <Lightbox src="scaleway-allocation-rules-customer-it-equip.webp" alt="" />
 
+##### Calculation example
 
-### Cross-IT Equipment & stock
+For the use of an Elastic Metal server, with a lifespan of 6 years (52 560 hours) and power of 110w, for 100 hours and considering via Boavizta estimates that the impact of the manufacturing of this server is 850 kgCo2e, we make the following calculation:
 
-Our calculation will also incorporate the environmental footprint of all transversal tools essential for the functioning of the Scaleway.
+```math
+ServerManufacturing = (100 / 52560) * 850 = 1,62 kgCO2e
+```
 
-For Dedibox, only the following tools are considered: 
+Therefore 1,62 kgCO2e is added to the total manufacturing impact for the use of this server. 
 
-- Customers success
-- Hardware
-- Helpdesk
-- Internal services
-- Security
-- Website development
-- Production Incidents
-- Production operations
-- The Environmental Footprint tool itself
+### Cross-IT Equipment & stock
 
-The elements listed above encompass a comprehensive list of resources that support various internal operations and services. 
+Our calculation will also incorporate the environmental footprint of all transversal tools essential for the functioning of the Scaleway.
 
 To determine their manufacturing impact, we add the environmental footprint of each machine hosting these transversal tools over the duration of customer usage. This aggregated impact will then be divided by the total number of customers. A "customer" is defined as an active organization, that is to say an organization which consumes and which is billed.
 
@@ -141,11 +147,20 @@ To integrate this into the overall calculation, we will first get the total envi
 
 ### Water consumption
 
-For each Scaleway product or service, we calculate the water consumption based on its energy consumption.
+Providing water consumption metrics is essential in the context of cloud services hosted in data centers because water plays a key role in cooling systems, which ensure the optimal operating temperatures for servers. The amount of water consumed depends on factors such as the temperature, humidity, and the design of the cooling system. For instance, in hot and dry climates, water consumption tends to be higher. At Scaleway we choose our data centers also taking this criterion into account to reduce water consumption as much as possible.
+
+This data is availlable for:
+* FR-PAR-1
+* FR-PAR-2
+* FR-PAR-3
+* NL-AMS-1
+
+
+For each Scaleway product or service in these Availability Zones, we calculate the water consumption based on its energy consumption.
 
 To estimate the water consumption by multiplying the total energy consumption for each service by the [Water Usage Effectiveness (WUE)](/environmental-footprint/environmental-footprint/concepts/#water-usage-effectiveness), as such:
 
-```
+```math
 Water Consumption (liters) = Energy Consumption (kWh) × WUE (liters/kWh)
 ```