We are a separate company

On 1 April Electricity Transmission became a legally separate company within the National Grid Group. Find out more about what this change means.

How we're performing

Here you can find out about how we’re performing under our current business plans, including reliability, the environment, customer satisfaction, customer connections and, most importantly, safety.

How we’re performing under our current business plans

Our performance outputs under our current business plans were set by a stakeholder consultation process at the start of the RIIO-T1 price control period

1.3 billion pounds saving

So far, we’ve achieved our targets, while saving £1.3 billion in the process. We’ve done this by working more efficiently, more productively and using our asset management expertise when working on projects. We share these savings with consumers, which means that over £600 million will not be passed on to household consumers’ bills.

Contact us

We welcome your feedback, so we can make sure we’re improving in the areas that are important to you. You can email us at [email protected]

Our results

During the first half of RIIO-T1, we had allowances of £6.2 billion to achieve the performance outputs we’d agreed. These outputs are categorised as: providing a safe energy network, ensuring long-term reliability and availability; managing our environmental impact; achieving high levels of stakeholder and customer satisfaction; and connecting customers quickly and efficiently.  

Our yearly results against these categories are shown below.  

Safety: providing a safe energy network

We publish a summary of our performance so that we can explain how we have performed to our customers, stakeholders and end consumers. We hope that you find it useful and we welcome your feedback on how we can improve our report in the future.

Reliability: delivering long-term reliability, minimising the number and duration of interruptions

 

2013/14

2014/15

2015/16

2016/17

2017/18

Volume of unsupplied energy (MWh)

135.9

9.80

4.50

89.30

39.90

Target (MWh)

316.00

316.00

316.00

316.00

316.00

Availability of network (%)

99.99995

99.999996

99.999998

99.999964

99.99999*

*1 megawatt hour (MWh) is roughly equivalent to the amount of energy used by 200 UK homes in a year.

We’ve maintained high levels of reliability from our network throughout the duration of RIIO-T1.

With only a few exceptions, electricity is available whenever people need it. We are on track to meet our targets, which measure the extent to which we’re maintaining reliability. We do this by managing risks associated with our network.

Environmental impact: playing our role in achieving broader environmental objectives

 

2013/14

2014/15

2015/16

2016/17

2017/18

‘000 tonnes of CO2 equivalent

2,249

2,532

2,256

1,981

TBC

Our overall business carbon footprint has fallen since the beginning of the RIIO-T1 period. This is mainly as a result of reducing emissions that result from energy losses from our transmission lines. The carbon intensity of our network has fallen due to increased renewable generation.

 

2013/14

2014/15

2015/16

2016/17

2017/18

Actual leakage (kg)

10,110

9,544

9,502

10,795

TBC

Target (kg)

11,933

12,035

12,097

12,242

TBC

Within our overall carbon footprint, we are measured against the amount of sulphur hexafluoride (SF6) that leaks from our assets. This is a gas with excellent insulating properties, but which is much more damaging to the environment than CO2. Our leakage levels have been less than our target for each year under our current business plans.

Our environmental performance annual statement

The Environmental Discretionary Reward incentivises our Electricity Transmission business to provide evidence on how we are achieving high standards in environmental management, as well as facilitating the industry towards a low carbon energy system. To support this incentive, we produce an annual statement, which you can download. 

We hope you find the statement an informative read. We want to know what you found most useful and where you’d like more in-depth information. We also welcome your feedback on how we’re doing, so either email us or take part in our online survey.

Email: [email protected]

Take online survey


Environmental documents

You can read or download our annual statements by clicking on the relevant link below.

NG Electricity Transmission - Delivering Our Environmental Future: Annual Statement (2015)

NG Electricity Transmission - Delivering Our Environmental Future: Annual Statement (2016)

NG Electricity Transmission - Delivering Our Environmental Future: Annual Statement (2017)

NG Electricity Transmission - Delivering Our Environmental Future: Annual Statement (2018)
 
Customer and stakeholder satisfaction

 

2013/14

2014/15

2015/16

2016/17

2017/18

Customer survey (target)

6.9

6.9

6.9

6.9

6.9

Customer survey (score)

7.41

7.4

7.54

7.4

7.74

Stakeholder  survey (target)

N/A

N/A

N/A

N/A

7.40

Stakeholder  survey (score)

7.53

7.74

7.53

7.66

7.88

We’re measured on customer and stakeholder satisfaction through annual surveys. The incentive limits we can earn are (+ / -) 1 per cent of our annual allowed revenue. Our satisfaction scores have exceeded Ofgem’s targets each year during our current business plans. 

 

Stakeholder engagement incentive submission 

Ofgem’s stakeholder engagement incentive is designed to encourage us to engage effectively with a wide range of our stakeholders and use the outputs from this process to inform how we plan and run our businesses. The incentive limit is +0.5 per cent of our annual allowed revenue and is determined by an independent assessment panel, which Ofgem also attends.
 

Stakeholder engagement incentive documents

You can read or download our stakeholder engagement incentive submission by clicking on the relevant link below.

NG Electricity Transmission - Stakeholder Engagement Incentive Submission Part 1 - (2014-15)
NG Electricity Transmission - Stakeholder Engagement Incentive Submission - Part 2 (2014-15)
NG Electricity Transmission - Stakeholder Engagement Incentive Submission Part 1 - (2015-16)
NG Electricity Transmission - Stakeholder Engagement Incentive Submission Part 2 - (2015-16)
NG Electricity Transmission - Stakeholder Engagement Incentive Submission - Parts 1 and 2 (2016-17)
NG Electricity Transmission - Stakeholder Engagement Incentive Submission - Parts 1 and 2 (2017-18)
Connecting customers quickly and efficiently

We’ve worked hard with our customers to improve our connections process. We’ve reduced the time it takes to offer a connection agreement from the 90 days required by our licence, to 60 days on average during the past 12 months. In some straightforward cases, we’ve cut the time to just one week. 

We’re expecting to connect around 11 gigawatts of new generation during the period covered by our current business plans.

Our performance summary

We publish a summary of our performance so that we can explain how we have performed to our customers, stakeholders and end consumers. We hope that you find it useful and we welcome your feedback on how we can improve our report in the future.

Performance summary documents

You can read or download our performance summary documents by clicking on the relevant link below.

2017/2018

Electricity_Performance_Report_2017-18.pdf 

2016/2017

201617_Our_Performance_NGET.pdf

2015/2016

For the full report: NGET_Our_Performance_report.pdf

To watch a short video about our performance in Electricity Transmission click on electricity_animation.pdf

For a 1-page summary: NGET_InfoGraphic.pdf

For forecasts of expenditure, allowances, and incentive information: NGET_Data_Tables.pdf

NGET_Our_Performance_printversion.pdf

2014/2015

NG Electricity Transmission - Our Performance Publication 2014/2015 (Online version)

NG Electricity Transmission - Our Performance Publication 2014/2015 (Printable version)

NG Electricity Transmission - Data Tables 2014/2015

2013/2014

NG Electricity Transmission - Our Performance Publication (13/14)

NG Electricity Transmission - Detailed Performance Scorecard (13/14) 

Planning together (RIIO)

As the energy landscape changes, we’re working closer than ever with our stakeholders to shape business plans that reflect their needs and benefit consumers.

Find out more

Help shape our business plan (RIIO)

We want to hear the views of people and organisations who have an interest in our next business plan for RIIO-T2.

Find out more

Stakeholder groups

We’re working with our independently chaired stakeholder groups, whose role is to scrutinise our approach and plans, as well as Ofgem’s RIIO-2 challenge group.

Find out more

Breaking down your bill

Learn about the different elements of your electricity bill and how much of it goes towards maintaining and running the electricity transmission network.

Find out more

Your feedback is important 

We want to make sure we’re improving in the areas that are important to you, so we welcome your feedback on our performance.

Please email us at the address below.

 

[email protected]