EV Charging Fees

Charging fees refer to the total costs incurred by electric vehicle (EV) owners when charging at public charging stations. A full charging bill typically comprises three main components: the electricity tariff, the service fee, and the idle fee. The electricity tariff is subject to government-regulated pricing, while the service fee is determined by market mechanisms, with both combining to form the final total rate paid by users.

Fee Structure

The electricity tariff forms the base component of the charging bill and complies with national electricity pricing regulations. Commercial EV charging points generally adopt a Time-of-Use (TOU) tariff structure—where electricity rates are higher during peak demand hours and lower during off-peak periods (such as overnight). This portion of the cost is directly tied to the power grid's supply cost and is not set independently by charging point operators (CPOs).

The service fee is charged by CPOs to recover the capital and operational expenditure of site construction, equipment maintenance, and station management; since 2020, this has transitioned to a market-regulated pricing model, allowing CPOs to determine their own rates. Rates vary depending on location: standard hubs in suburban areas and industrial parks generally charge between 0.3 yuan and 0.5 yuan per kWh, whereas prime locations such as city-centre commercial districts, highway service areas (R&Rs), and popular tourist spots can command rates between 0.7 yuan and 1.0 yuan per kWh. Certain cities (such as Shanghai) still enforce a price ceiling, capping the service fee at 1.3 yuan per kWh. The "total unit rate" paid by users is the sum of both the electricity tariff and the service fee.

The idle fee (or overstay fee) is a bay-occupancy charge levied by operators when a vehicle remains parked in a charging bay after charging is completed, intended to curb bay hogging and improve charger turnover. The prevailing industry practice is to offer a grace period (typically 30 minutes) upon completion of charging, after which charges accrue on a per-minute basis, with most operators implementing a maximum cap. In a 2024 court case in Shanghai, an EV owner was billed 438.4 yuan for overstaying in a bay for 94 minutes; the court ruled that this charge serves as legitimate liquidated damages and is legally enforceable provided the CPO has clearly communicated the terms beforehand.

Billing Methods

EV charging fees are predominantly billed based on energy consumed (kWh), representing the most common billing model across the industry. The calculation formula is:

Total Charging Cost = Energy Consumed (kWh) × Total Unit Rate (Electricity Tariff + Service Fee)

For instance, drawing 30 kWh at a charging station where the electricity tariff is 1.0 yuan/kWh and the service fee is 0.5 yuan/kWh yields a total rate of 1.5 yuan/kWh, resulting in a total charge of 45 yuan for the session.

In select environments (such as highway service areas), DC fast chargers may utilise a hybrid billing mechanism—charging users based on energy consumed alongside a time-based service fee. Additionally, some operators offer monthly or annual subscription packages, providing users with a fixed allocation of free charging credits for a recurring monthly fee.

Pricing Regulations and Common Issues

Under statutory regulations, charging fees must enforce the unbundling of electricity and service charges—meaning both the electricity tariff and service fee must be clearly itemised and displayed prominently across charging sites, mobile apps, and mini-programmes, with unlisted surcharges strictly prohibited. Nonetheless, non-compliance persists in the market: certain EV charging apps display only a combined single rate without breaking down the electricity and service components, leaving motorists in the dark regarding actual costs and breaching price transparency rules. In 2025, authorities in Zhoushan, Zhejiang penalized a charging operator with a fine and a rectification order after failing to publish itemised fee schedules.

Before plugging in at public EV charging points, motorists are advised to check the operator's mini-programme or app under "Station Details" to review the tariff structure and idle fee policy, and subsequently inspect the session receipt—checking energy consumed, unit rates, and itemised costs—to ensure complete billing clarity.