enercity used Cariqa Go to 2.6× ad-hoc QR charging revenue

Ad-hoc charging is an essential sales channel for CPOs, capturing demand from drivers who arrive without prior planning or a proprietary app. But implementing it at scale is hard, as QR-based solutions often bring technical dependencies and limited flexibility in how pricing, fees, and tariffs are configured.

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Until 2025, enercity ran ad-hoc charging through a legacy QR-based solution. It worked, but pricing configuration, fee structures, payment methods, and station-level control were all constrained, limiting enercity's ability to manage ad-hoc charging in line with its broader commercial and operational requirements.

The approach

In 2025, enercity introduced Cariqa Go, a QR-based ad-hoc charging solution, across its public network. The decision came down to needing a backend-agnostic setup with real flexibility and control over:

• Configurable pricing models (energy-based, time-based, session fees, blocking fees and caps)
• Station and power-level tariff configuration
• Support for multiple payment methods
• Direct settlement, with payments flowing from driver to enercity
• Clear enercity branding throughout the charging and billing journey, including the invoice

To measure Cariqa Go’s impact, enercity compared Cariqa Go against the legacy solution on a like-for-like basis: same calendar quarter, one year apart (Q4 2024 vs Q4 2025).

The results

Between Q4 2024 and Q4 2025, enercity expanded its public charging network, increasing the number of charging points by 27%. Results were normalised to a constant network size to isolate observed performance changes from infrastructure growth.

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On this like-for-like basis, Cariqa Go showed higher observed performance than the previous QR solution over the same period:

• Charging revenue: 2.6×
• Energy sold: 2.45×

Why it matters

QR-based charging is a commercially significant access channel. When deployed consistently across a network, QR-based ad-hoc charging can contribute a meaningful share of revenue and energy sold, as enercity's 2.6x revenue increase shows.

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That level of performance depended on operator flexibility. Granular control over tariffs, fees, and payment options enables operators to manage ad-hoc charging in line with commercial objectives.