Dynamic Pricing for EV Charging: Control Tariffs from Your Existing Systems

Petrol retailers operate in a fast-moving environment where margins shift constantly. 

Fuel prices change several times a day to reflect wholesale cost, competition, and convenience.  

EV charging can follow the same playbook. With the right EV charging software, pricing can adjust automatically based on time of day, charger speed, energy costs, or customer status. 

As outlined in our practical guide for petrol retailers in EV charging, dynamic pricing helps align charging operations with both business goals and energy system needs. 

The next step is making this pricing flexibility operational. That’s where eMabler’s EV charging pricing API comes in. This feature gives you the control to apply for electricity the same pricing strategies used in fuel. You can sync tariffs directly with your fuel pricing engine, set rules by site or network, and respond instantly to changes in energy cost, demand, or customer profile. 

In this article, we explain how petrol retailers can activate dynamic pricing for EV charging using the systems they already rely on today. 

What are the Benefits of Dynamic Pricing for EV charging? 

Dynamic pricing refers to the ability to adjust the cost of a product or service in real time based on external factors such as supply, demand, time of day, energy cost, or customer profile. For EV charging, it means tariffs can change hourly, daily, or per user segment to reflect business logic, energy pricing, or customer loyalty levels. 

For petrol retailers, this pricing flexibility helps to shape driver behaviour, optimise site performance, and protect margins across varied operating conditions.  

Here is how dynamic pricing adds value for petrol retailers: 

1. Higher Utilisation During Off-Peak Hours 

Drivers respond to price incentives. A UK field experiment showed that reducing the charging tariff by 40% during low-demand hours led to a 117% increase in charging sessions. 

Example: A petrol retailer offers a 25% discount for charging between 10:00 pm and 6:00 am. Drivers who would otherwise delay charging until the next day take advantage of the lower cost, increasing overnight utilisation and improving asset productivity. 

2. Better Alignment with Grid Capacity and Energy Supply 

Adjusting tariffs in sync with grid conditions reduces costs and improves sustainability. Pricing that reflects peak and off-peak grid loads helps shift demand away from high-cost periods and makes room for more renewable electricity use. 

Example: A retailer increases prices between 6:00 and 9:00 pm, when the electricity grid is under the most pressure. Because charging is more expensive during those hours, some drivers choose to charge later in the evening instead. This helps the retailer lower their energy costs and reduces strain on the electricity grid. 

3. Longer Dwell Time and Increased In-Store Revenue 

Customised pricing can be used to encourage drivers to stay longer on-site. This results in more time spent in the shop or café and can lift the average basket size significantly. 

Example: During lunchtime, the retailer offers 15 minutes of free charging with a hot food purchase. Drivers use the time to eat or browse other in-store offers, helping boost non-fuel sales. Read more in our article: How EV Charging Extends the Customer Journey In-Store 

4. Protection Against Wholesale Energy Price Volatility 

Energy prices fluctuate, especially during seasonal peaks or grid stress events. Dynamic pricing gives you the tools to respond to changes instantly, helping to maintain healthy margins and reduce exposure. 

Example: In response to rising wholesale electricity costs during a heatwave, the forecourt automatically increases EV charging tariffs by €0.10 per kWh for three hours in the afternoon. The change is pushed via API to all connected chargers and reflected in the customer app, avoiding manual updates. 
 

All in all, dynamic pricing makes EV charging a more flexible and commercially aligned part of your forecourt operations. When pricing is based on real-time data (such as energy costs, time of day, and customer type) you can manage EV charging with the same efficiency and responsiveness as your fuel business. 

How Does the eMabler EV Charging Pricing API Work? 

eMabler provides a flexible API-first EV charging platform that enables petrol retailers to manage EV charging tariffs in a structured and automated way.  

It is designed to support dynamic pricing models across different charging hardware and back-office systems. 

Key features include: 

• Real-time tariff updates: Pricing changes can be pushed to individual chargers or entire networks using standard protocols like OCPP and OCPI. This supports timely adjustments based on external conditions such as energy price or demand. 
   

• Rule-based pricing logic: Retailers can define pricing rules that reflect their existing fuel pricing structures. Tariffs can be based on factors such as time of day, charging speed, session length, or renewable energy mix. 
   

• Integration with loyalty systems: Pricing rules can take into account customer profiles by linking with RFID tags, mobile apps, or POS identifiers. This allows different prices for loyalty tiers or specific user groups. 

  
  

• Support for multiple countries and currencies: The API accommodates variations in VAT, transaction fees, and currency, simplifying tariff management across regions. 

  
  

• Change tracking and reporting: All pricing actions are logged, and analytics tools are available to track the impact of pricing strategies on utilisation, margins, and customer behaviour. 

The API is hardware-independent, which means it can be used alongside different charger manufacturers without locking the business into a specific vendor or platform. 

How to Implement Dynamic EV Charging Pricing in Three Steps? 

Activating dynamic pricing for EV charging does not require a full system overhaul. 

Retailers can build on the systems and logic they already use for fuel pricing. With eMabler’s EV charging pricing API, the rollout process is designed to be efficient and compatible with your existing infrastructure. 

Here is how it works: 

1. Connect: Establish a connection between your EV chargers and the eMabler platform using open industry protocols such as OCPP and OCPI. This guarantees interoperability and simplifies the integration process. 
   
   

2. Map: Import your current pricing rules from existing fuel pricing engines or templates. These can then be adapted to apply to EV-specific parameters like session duration, power output, or energy source. 
   
   

3. Automate: Once the pricing logic is mapped, the API handles tariff adjustments automatically based on the conditions you define. Performance metrics can be monitored through your existing dashboards or analytics tools. 

Retailers typically complete the first site in a matter of weeks, supported by ready-made middleware, tested integrations, and clear documentation. This allows internal teams or partners to move quickly without needing to rebuild pricing systems from scratch. 

Conclusion 

Dynamic pricing gives petrol retailers more control over EV charging operations by making tariffs responsive to cost, demand, and customer profile. It supports better grid alignment, improves charger utilisation, and helps protect margins in a volatile energy market. 

With eMabler’s EV charging pricing API, you can apply the same pricing strategies used for fuel across your charging network, without replacing your current systems or hardware. 

If you're exploring how to make EV charging more flexible and commercially viable, get in touch with our team. We’ll walk you through how the API works and how to bring dynamic pricing to your sites!