MID-Certified Accuracy: How DEFA Power Ensures Fair Billing with KotiCharge

As the electric vehicle (EV) industry matures, the infrastructure that supports it must also evolve to meet rising standards—particularly around transparency and trust. One of the most essential areas of improvement is how EV charging is measured and billed. For KotiCharge, ensuring precise, trustworthy billing isn’t just a technical detail—it’s a fundamental part of the user experience.

That’s why all KotiCharge charging stations, powered by DEFA Power hardware, are equipped with MID-certified accuracy. This certification guarantees that every kilowatt-hour billed to a customer reflects the exact amount of energy delivered to their vehicle, no more and no less. In this article, we’ll explore what MID-certified accuracy means, why it matters to both EV drivers and operators, and how KotiCharge ensures fair billing across its charging network.

What Is MID-Certified Accuracy?

MID stands for the Measuring Instruments Directive, a European Union directive (2004/22/EC, and more recently 2014/32/EU) that sets strict requirements for the accuracy, performance, and compliance of instruments used in commercial transactions. This includes electricity meters, gas meters, water meters, and thermal energy meters.

When an electricity meter used in an EV charging station is MID-certified, it means it has passed a rigorous process to ensure its readings are legally accurate for billing purposes. These meters are subject to third-party testing, and they must conform to strict accuracy classes and technical standards.

For EV charging, this ensures that users are not overcharged—or undercharged—and that every session is measured with precision. It also provides legal protection and peace of mind to both customers and charging providers.

For a full overview of the directive, see the official European Commission MID documentation.

Why Is MID-Certified Accuracy Important in EV Charging?

Electric vehicles have introduced a new utility into everyday life: charging your vehicle now resembles paying for electricity in your home or fuel at a petrol station. Yet, unlike traditional fuel pumps—where strict measurement regulations have long been in place—many early EV charging stations used unregulated or uncertified meters.

This lack of standardization created inconsistencies in billing, with users sometimes paying for estimated consumption or being charged based on time spent plugged in rather than actual energy used.

KotiCharge addresses this issue directly. By implementing MID-certified meters in all stations powered by DEFA Power, KotiCharge ensures:

• Fairness and transparency: Drivers pay only for the electricity they consume, as measured by a certified meter.

• Regulatory compliance: MID certification meets legal requirements for public and commercial energy sales across the EU.

• Customer trust: MID certification is a visible and verifiable commitment to accountability and fairness.

• Operational accuracy: Charging operators receive consistent, accurate data for financial reconciliation, reporting, and maintenance.

In short, MID-certified accuracy brings EV charging up to the same standards expected in other metered utilities.

DEFA Power: Providing Certified, Scalable Charging Technology

KotiCharge’s infrastructure is built on DEFA Power’s hardware—a platform recognized for quality, durability, and compliance. Every DEFA Power charger installed across the KotiCharge network comes equipped with a MID-certified energy meter, ensuring that each session is measured with industry-grade precision.

This partnership aligns with KotiCharge’s broader mission: to deliver a seamless, secure, and intelligent charging experience that meets the needs of modern EV drivers. DEFA Power’s ability to meet stringent European standards also ensures that KotiCharge is compliant in any regulatory environment where it operates, both now and into the future.

To learn more about DEFA Power’s charging technology, visit their official website.

How KotiCharge Builds on MID-Certified Accuracy

While MID certification ensures precise measurement, KotiCharge layers additional smart technology to enhance user experience and efficiency. These features, combined with certified metering, give drivers full visibility into their charging activity and cost.

Spot Pricing

KotiCharge uses dynamic pricing based on real-time energy market rates. Drivers can choose to charge during off-peak hours when electricity is cheaper. The pricing is displayed upfront, and because it is tied to certified metering, the final bill always matches the advertised rate per kWh.

PowerPayment

This real-time billing system uses MID-certified energy readings to calculate the cost of a charging session instantly. Instead of being billed later or receiving estimated invoices, users are billed transparently at the end of each session, based on actual consumption.

Load Balancing

In multi-charger environments, KotiCharge’s platform distributes energy across all active chargers to prevent grid overload and maintain efficient charging speeds. This system still maintains MID-certified precision in billing, even while managing complex energy distribution.

Smart Charging

KotiCharge allows users to schedule charging sessions to align with their energy goals—whether that’s charging during low-demand periods, reducing environmental impact, or avoiding peak tariffs. All charges are recorded and billed accurately using certified meters.

Real-Time Tracking

Through the KotiCharge mobile app, users can view live data on energy consumption, charging time, and costs. This information comes directly from the certified meter inside the charger, so there’s no room for discrepancy.

For more about these features, visit the KotiCharge Features page.

Regulatory Readiness and Future-Proof Infrastructure

With regulations tightening across Europe, MID certification is quickly becoming a legal necessity for any public EV charging installation. In several countries, uncertified meters are no longer allowed in public or commercial chargers. By proactively integrating MID-certified hardware, KotiCharge ensures long-term compliance without the need for retrofitting or costly upgrades later on.

This readiness is not just about avoiding fines—it’s about offering a charging network that is credible, auditable, and aligned with the future of energy regulation.

Final Thoughts

As EV adoption accelerates, so too must the standards of the charging infrastructure that supports it. KotiCharge is committed to leading this transition through transparent billing, intelligent features, and regulatory compliance. By partnering with DEFA Power and deploying MID-certified meters at every station, we ensure that fairness, accuracy, and trust are built into every charge.

Whether you’re a first-time EV owner, a fleet manager, or a property developer, MID-certified accuracy ensures that the value you receive—and the amount you pay—are always aligned.