Understanding Economy 7 Tariffs

What is an Economy 7 Tariff? 

An Economy 7 tariff, also known as a two-rate tariff, has two differing energy prices throughout the day: Peak Rate, or a daytime rate where electricity is at a cost per kilowatt when used at this time, and Off-Peak Rate, or nighttime rate, a seven-hour nighttime window where electricity is cheaper due to its lower demand. 

Economy 7 tariffs help support the ongoing need to balance electricity grid demand by encouraging energy use during off-peak hours. With space heating representing a significant share of energy consumption - often delivered via direct-acting electric heaters - shifting usage to overnight periods can help reduce peak-time pressure on the grid and minimise the waste associated with electricity overproduction during low-demand hours. A more balanced demand profile also supports the transition to net zero by enabling greater reliance on renewable energy sources, such as wind and solar, which require flexible consumption patterns to match their variable output. 

Originally designed to benefit homes using storage heaters,  Economy 7 tariffs allow households to take advantage of lower rates for appliances that run continuously, such as refrigerators, as well as reduced rates for appliances that can operate during off-peak hours, like washing machines. 

Dimplex Quantum High Heat Retention (HHR) Storage Heaters 

The Dimplex Quantum HHR storage heater is a next-generation upgrade to the traditional storage heater, designed to help reduce reliance on fossil fuels when heating the home.  

Homes fitted with Quantum can benefit from a range of intelligent features and energy-saving technologies: 

• Advanced Heat Retention: Quantum’s high-performance insulation stores heat efficiently and releases it only when needed, helping reduce energy waste and prevent excess warmth during charging periods.
• Adaptive Start Technology: Learns how long it takes to heat the room and automatically begins warming at the right time to reach the desired temperature when it’s needed.
• Open Window Detection: Monitors for sudden temperature drops - such as those caused by an open window - and pauses heating to prevent energy from being wasted.
• Cost Efficiency: Quantum’s advanced insulation and faster heat delivery can reduce running costs by up to 27% compared to older storage heater models. 

Quantum is an ideal solution for upgrading outdated storage heaters or replacing direct-acting electric heating systems. It also unlocks access to the British Gas Quantum Tariff, helping homeowners enjoy greater comfort with reduced reliance on peak-time electricity and lower carbon impact. 

How to Get Started 

To start benefiting from the energy savings and smart control features offered by Dimplex Quantum HHR storage heaters follow these simple steps: 

• Ensure all Quantum heaters are connected to the Dimplex Control Hub. The Dimplex Control Hub is a device that connects your Quantum heaters to the internet.
• Have a functioning “always on” home broadband internet connection.
• Make sure you have a smart meter or have a conventional Economy 7 meter.

By combining the innovation of Dimplex Quantum high heat retention storage heaters with the cost-saving potential of Economy 7 Tariffs, homeowners and tenants can enjoy efficient, sustainable, and affordable electric heating - today and into the future.