With the industry aiming for around 80% of meters to be migrated by October this year, Madeleine Porter, Head of Marketing at Utility Bidder explains what half-hourly settlement actually means and what it means for energy bills moving forward.
What is half-hourly settlement?
Half-hourly settlement is a major change to how electricity usage is measured and billed in the UK. Instead of suppliers estimating when energy is used throughout the day, smart and advanced meters record electricity consumption every 30 minutes.
This gives suppliers a much more accurate picture of demand across the grid and is designed to support the UK’s transition towards a smarter, more flexible energy system that can better handle renewable electricity generation.”
How will half-hourly settlement affect household bills?
For most households, the biggest change will be the growth of more flexible tariffs. Consumers may increasingly see energy prices vary depending on the time of day they use electricity.
This could benefit households able to shift energy-intensive activities, such as EV charging, washing, or running appliances, outside of peak demand periods. In some cases, this may help reduce bills.
However, households that use large amounts of electricity during peak periods may see higher costs on certain tariffs as suppliers introduce more time-based pricing structures.
How will businesses be impacted?
For businesses, half-hourly settlement will place much greater emphasis on understanding when electricity is being consumed, not just how much is being used overall.
Businesses with flexible operating hours may be able to reduce costs by shifting certain activities away from expensive peak periods. However, companies with high daytime demand, particularly in sectors like hospitality, retail, manufacturing, and logistics, may feel increased pressure from rising peak-time costs.
It also means energy monitoring, forecasting, and efficiency strategies will become increasingly important over the next few years.
What are the benefits of half-hourly settlement?
While there are concerns around complexity and pricing, half-hourly settlement is designed to create a more efficient energy system overall.
Better visibility of electricity demand can help reduce strain on the grid, support renewable energy integration, improve forecasting, and encourage smarter energy usage. Over time, this should help create a more flexible and resilient energy network.
Four practical ways households and businesses can prepare for half-hourly settlement:
- Review your current tariff and smart meter status. Check whether your property already uses half-hourly data and review whether your current tariff remains competitive as new time-of-use pricing becomes more common.
- Shift electricity usage where possible. Running appliances, charging vehicles, or scheduling energy-intensive processes outside of peak demand periods could help reduce future costs.
- Monitor usage patterns more closely. Smart meter apps and energy monitoring systems can help identify periods of high electricity usage and uncover opportunities to improve efficiency.
- Plan ahead for future pricing changes. As suppliers continue introducing flexible tariffs, both households and businesses should expect energy pricing structures to become more dynamic over the coming years.
