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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.
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.
We’re forecasting to achieve all of our T1 targets, while saving £2.8 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 £1.5bn will not be passed on to household consumers’ bills.
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]
During RIIO-T1, we forecast our allowances to be £12.9 billion to achieve the 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
connecting customers quickly and efficiently.
Our yearly results against these categories are shown below.
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.
You can read or download our performance summary documents by clicking on the relevant link below.
2019/2020
Regulatory Financial Performance Reporting 2020 NGET (TO) Narrative |
NGET stakeholder performance report 2019/20 |
2018/2019
Regulatory Financial Performance Reporting 2018-19 NGET (TO) |
Regulatory Financial Performance Reporting 2018-19 NGET (TO) Narrative |
NGET stakeholder performance report 2018/19 |
2017/2018
2016/2017
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 |
For a 1-page summary: NGET_InfoGraphic.pdf |
For forecasts of expenditure, allowances, and incentive information: NGET_Data_Tables.pdf |
2014/2015
NG Electricity Transmission - Our Performance Publication 2014/2015 (Online version) |
NG Electricity Transmission - Our Performance Publication 2014/2015 (Printable version) |
2013/2014
NG Electricity Transmission - Our Performance Publication (13/14) |
NG Electricity Transmission - Detailed Performance Scorecard (13/14) |
This continues to be our number one priority. We are proud to report that our injury frequency rate (IFR) has continued to improve and for 19/20 was 0.05 (compared to 0.07 in 2018/19) which is world class performance. This is due to the continuing work to deliver strong gains in contractor safety performance. The initiatives in manual handling, driving, and site rules that are underway are contributing to the continued improvement in safety performance.
Reliability – the total energy not supplied in 2019/20 was 54.5MWh. When compared with the incentive neutral point of 316 MWh, this year’s performance was relatively strong, although the total incentivised lost energy was greater than that of 2018/2019 (12.06 MWh). This result is 83% lower than the neutral point and represents an overall level of network reliability of 99.99997%, which our stakeholders tell us continues to be so important to them.
We’ve maintained high levels of reliability from our network throughout the duration of RIIO-T1 and are on track to meet Ofgem's reliability targets.
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 | 2018/19 | 2019/20 |
|
‘000 tonnes of CO2 equivalent | 2,249 | 2,532 | 2,256 | 1,981 | 1,886 | 1,594 | 1,784 |
|
Sulphur hexafluoride (SF6) is an extremely effective electrical insulator and has significant advantages over alternative materials. It is non-flammable, a critical requirement in the high voltage applications for which we use it. And, because of its effectiveness, it takes up less volume than an equivalent insulating volume of an oil alternative.
However, SF6 is also a greenhouse gas. As a responsible business, we continue to investigate and develop new ways to manage and reduce the impact of our network, business activities and operations on the environment. We are exploring new initiatives and SF6 alternatives and capture techniques. These are part of our continued efforts to take care of the environment for current and future generations.
| 2013/14 | 2014/15 | 2015/16 | 2016/17 | 2017/18 | 2018/19 | 2019/20 |
Actual leakage (kg) | 10,110 | 9,544 | 9,744 | 11,000 | 9,617 | 12,270 | 12,441 |
Target (kg) | 12,054 | 12,159 | 12,303 | 12,354 | 12,461 | 12,486 | 12,481 |
Environmental documents
You can read or download our annual statements by clicking on the relevant link below.
We’re measured on customer and stakeholder satisfaction through independent annual surveys. Our incentive/penalty limits are +/- 1% of our annual allowed revenue. Our satisfaction scores have exceeded Ofgem’s targets each year during our current business plans.
In our first year fully separated from the ESO, we are delighted that we have successfully improved our overall service quality further from previous years and this is reflected in our customer satisfaction ratings, which have significantly increased from 7.92 last year to 8.21 this year. This improvement reflects the focus and hard work across our whole transmission business to both understand and improve the way we provide the experience our customers need. Our stakeholder satisfaction score has also significantly increased from 7.92 in 2018/19 to 8.64, due to our increased focus on stakeholder engagement across our business.
| 2013/14 | 2014/15 | 2015/16 | 2016/17 | 2017/18 | 2018/19 | 2019/20 |
Customer survey (target) | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 |
Customer survey (score) | 7.41 | 7.4 | 7.54 | 7.4 | 7.74 | 7.92 | 8.21 |
Stakeholder survey (target) | N/A | N/A | N/A | N/A | 7.4 | 7.4 | 7.4 |
Stakeholder survey (score) | 7.53 | 7.74 | 7.53 | 7.66 | 7.88 | 7.92 | 8.64 |
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.
You can read or download our stakeholder engagement incentive submission by clicking on the relevant link below.
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 12 gigawatts of mainly low carbon new generation during the period covered by our current business plans.
National Grid Electricity Transmission (NGET) publishes its annual Transmission Losses report for the previous years. This report sets out:
(a) the level of transmission losses from our Transmission System, measured as the difference between the units of electricity metered on entry to our Transmission System and the units of electricity metered on leaving it;
(b) a progress report on the implementation of our strategy including our estimate of the contribution to minimise Transmission Losses on our Transmission System that has occurred as a result;
(c) any changes or revisions we have made to the strategy; and
(d) a description of any calculations we have used to estimate Transmission Losses on our Transmissions System.
Download the Strategy on Transmission Losses
2014/15 Transmission Losses Report |
2015/16 Transmission Losses Report |
2016/17 Transmission Losses Report |
2017/18 Transmission Losses Report |
2019/20 Transmission Losses Report |
We work with independent stakeholder user and challenge groups who scrutinise our approach, making sure our business plan will achieve the right outcomes for all our stakeholders including end-consumers
Find out how much of your bill goes towards the cost of running the Electricity Transmission network, and how that cost breaks down.