Guidance for industry: Default Tariff Cap table of public information


Publication date

Industry sector

  • Supply and Retail Market
  • Generation and Wholesale Market

This document provides information for industry to help calculate and apply the Default Tariff Cap models. It covers the publicly available inputs and sources for each of the Default Tariff Cap models. The document does not include information that we receive through subscriptions and do not have permission to share externally.

If you have questions, please contact us at

Guidance for energy customers

If you are an energy customer trying to find out your capped tariff price, please contact your energy supplier. You can find their contact information on an energy bill, or see Who is my energy supplier? You can also find answers to frequently asked questions on our consumer FAQ page.