Each year, network companies must report on their performance and outputs under Ofgem’s RIIO (Revenue = Incentives + Innovation + Outputs) network price controls. To ensure value for money for consumers, the price controls limit the amount by which network costs can rise and stipulate levels of performance. These network indicators give a snapshot of our monitoring.
Our network indicators
Select a sector from the below to view our network indicators in detail and for an overview of our monitoring themes.
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- In 2016/17 the number of power cuts across GB reduced by 3% compared with 2015/16, however the duration of power cuts increased by 1%. Overall the number and length of power cuts has almost halved since 2002.
- Customer service continues to improve with the majority of network companies meeting or beating customer service targets in 2016/17. Scores in both electricity distribution and gas distribution currently stand at 8.8 out of 10.
- In 2016/2017 electricity distribution and electricity transmission network companies reduced the carbon footprint of their networks compared with 2015/2016.
- By 2016/2017 gas distribution networks had connected over 52,000 fuel poor homes to the gas grids since the start of the price control in 2013.
- Most of the companies are underspending their allowances. Traditionally their spending increases further into the price control when they deliver large, capital-intensive projects. Ofgem requires the companies to share savings from underspending with customers.
So far, since the start of RIIO in 2013 Ofgem has secured additional savings of over £5 billion for consumers by a combination of reduced revenues or voluntary contributions from companies.
The RIIO price controls are designed to encourage network companies to play a full role in delivering a sustainable energy sector, and to do so in a way that brings consumers value for money. Under RIIO, each company has to deliver and report on a range of outputs:
- Reliability: We expect companies to improve network reliability and reduce the number and duration of power interruptions.
- Connections: Companies will provide a better service for customers wanting to connect to the network.
- Customer Service: We incentivise companies to deliver good customer service and listen to stakeholders.
- Social Obligations: Companies will do more to help vulnerable customers, particularly during power interruptions.
- Environmental: Companies must reduce their carbon emissions and other environmental impacts.
- Safety: Companies are funded to ensure the network remains safe and meets Health and Safety Executive standards.
You can find out more at: The energy network: how it works for you.
There are three electricity transmission network ownersopen key term pop-up. They operate the high voltage network carrying electricity across GB.
The RIIO-T1 price control runs from 1 April 2013 to 31 March 2021. The data presented here gives a snapshot of the network owners’ financial performance and their performance against key RIIO-T1 outputs for consumers.
There are 14 electricity distribution network operatorsopen key term pop-up, owned by six ownership groups. They operate the low voltage electricity network, taking energy from the transmission system to homes and businesses.
The RIIO-ED1 price control runs from 1 April 2015 to 31 March 2023. The data presented here gives a snapshot of the network owners' financial performance and their performance against key outputs for consumers.
National Grid Gas Transmissionopen key term pop-up is responsible for operating the high pressure transmission of gas across GB.
The RIIO-T1 price control runs from 1 April 2013 to 31 March 2021. The data presented here gives a snapshot of their financial performance and performance against key outputs for consumers.
There are eight gas distribution network operatorsopen key term pop-up, owned by four ownership groups. They operate the local gas networks, taking energy from the gas transmission system to homes and businesses.
The RIIO-GD1 price control runs from 1 April 2013 to 31 March 2021. The data presented here gives a snapshot of the network owners' financial performance and their performance against key outputs for consumers.
These market indicators and data are not intended for use or to be relied on for any commercial purposes. View copyright and disclaimer