Consumers are increasingly using services and technologies that optimise electricity use based on price signals, including ESAs, electric vehicle chargers, battery systems, and heat pumps. However, electricity tariff information is often provided in different formats and via different mechanisms, making it difficult for third-party services and devices to access and interpret tariff data across Suppliers consistently. 

Tariff Interoperability introduces a common approach for making Tariff Pricing Data available, helping to reduce complexity and improve consistency across the market. 

The project will: 

• Enable optimisation services and ESAs to access Tariff Pricing Data through a standardised approach; 
• Support consumer-led flexibility by helping consumers optimise electricity usage and costs; 
• Reduce barriers to interoperability between Suppliers, devices and service providers; 
• Promote innovation by making tariff data easier to access and use; and 
• Provide a consistent framework for governance, performance monitoring and assurance.