> ## Documentation Index
> Fetch the complete documentation index at: https://docs.watt.ma/llms.txt
> Use this file to discover all available pages before exploring further.

# Analyze your energy margin on watt.ma

> Distinguish acquisition cost from customer price on watt.ma: configure energy cost per site, measure gross margin, and steer profitability.

The energy margin analysis compares the electricity acquisition cost with the price billed to the driver. It lets a charging operator (CPO) or site manager know what each kWh delivered actually earns, regardless of the price displayed at the charger.

## Overview

The customer price visible at the charger says nothing about profitability. To measure it, watt.ma compares the customer price to the electricity acquisition cost configured on the site:

```text theme={null}
Energy cost               1.20 MAD/kWh
Customer price            2.50 MAD/kWh
Energy margin             1.30 MAD/kWh
```

<Warning>
  Energy margin is not net profit. It does not deduct payment fees, maintenance, or other operating expenses. See [Financial Analytics](/en/rapports/analytique-financiere) for a consolidated view.
</Warning>

## Configure a cost of energy

<Steps>
  <Step title="Open the site record">
    In **Chargers > Sites**, open the affected site and click the **Energy cost** tab.
  </Step>

  <Step title="Enter the provider tariff">
    Enter the average cost in MAD/kWh. This cost can correspond to the applicable ONEE tariff, a Green Energy Park tariff for a solar plant, or a tariff negotiated with an alternative supplier.
  </Step>

  <Step title="Configure time ranges">
    Optional. If your provider applies off-peak and peak hours, define multiple costs per time range. watt.ma automatically applies the cost matching the session time.
  </Step>

  <Step title="Save and validate">
    Save. The cost applies to sessions from the chosen effective date and immediately feeds the margin report.
  </Step>
</Steps>

## Example with off-peak hours

The **Green Energy Park** site buys energy at two tariffs:

| Time range    | Energy cost  | Customer price | Margin       |
| ------------- | ------------ | -------------- | ------------ |
| 00:00 - 06:00 | 0.80 MAD/kWh | 1.50 MAD/kWh   | 0.70 MAD/kWh |
| 06:00 - 22:00 | 1.50 MAD/kWh | 2.50 MAD/kWh   | 1.00 MAD/kWh |
| 22:00 - 00:00 | 1.00 MAD/kWh | 2.00 MAD/kWh   | 1.00 MAD/kWh |

A nighttime session of 30 kWh between 01:00 and 05:00 therefore generates:

```text theme={null}
Customer revenue  30 × 1.50 = 45 MAD
Energy cost       30 × 0.80 = 24 MAD
Gross margin                = 21 MAD
```

## Available report

The **Energy Margin** report displays for the selected period:

* Energy delivered (kWh)
* Acquisition cost
* Customer revenue (before VAT)
* Gross charging margin
* Margin rate (%)

Filter by site, by charger, or by period to compare points of delivery.

## Use cases

<CardGroup cols={2}>
  <Card title="Negotiate with ONEE" icon="handshake">
    Document the profitability of each site to negotiate an electricity tariff adapted to CPOs.
  </Card>

  <Card title="Adjust tariffs" icon="tag">
    Identify sites where the customer price does not cover costs and adjust tariffs. See [Tariff Components](/en/sessions/composants-tarifaires).
  </Card>

  <Card title="Steer solar mix" icon="sun">
    Compare margin on grid electricity versus local photovoltaic production.
  </Card>

  <Card title="Investor reporting" icon="chart-column">
    Present a consistent and auditable gross margin in your financial reports.
  </Card>
</CardGroup>

## See also

<CardGroup cols={2}>
  <Card title="Revenue" icon="chart-line" href="/en/rapports/revenus">
    Charging revenue before cost deduction.
  </Card>

  <Card title="Financial Analytics" icon="chart-mixed" href="/en/rapports/analytique-financiere">
    Consolidated financial dashboard.
  </Card>

  <Card title="Tariff Components" icon="layer-group" href="/en/sessions/composants-tarifaires">
    Adjust margin by modifying price components.
  </Card>

  <Card title="Tariffs" icon="tag" href="/en/sessions/tarifs">
    Return to tariff configuration.
  </Card>
</CardGroup>