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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.

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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:
Energy margin is not net profit. It does not deduct payment fees, maintenance, or other operating expenses. See Financial Analytics for a consolidated view.

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Configure a cost of energy

1

Open the site record

In Chargers > Sites, open the affected site and click the Energy cost tab.
2

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.
3

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.
4

Save and validate

Save. The cost applies to sessions from the chosen effective date and immediately feeds the margin report.

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Example with off-peak hours

The Green Energy Park site buys energy at two tariffs: A nighttime session of 30 kWh between 01:00 and 05:00 therefore generates:

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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.

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Use cases

Negotiate with ONEE

Document the profitability of each site to negotiate an electricity tariff adapted to CPOs.

Adjust tariffs

Identify sites where the customer price does not cover costs and adjust tariffs. See Tariff Components.

Steer solar mix

Compare margin on grid electricity versus local photovoltaic production.

Investor reporting

Present a consistent and auditable gross margin in your financial reports.

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See also

Revenue

Charging revenue before cost deduction.

Financial Analytics

Consolidated financial dashboard.

Tariff Components

Adjust margin by modifying price components.

Tariffs

Return to tariff configuration.