Environment
Performance summary 2018/2019
Overview of outputs
19Improve by 20% the time taken to provide a response to customers who want to use LCTs.(See note 1 below)We have seen an improvement in LCT response times and we're close to achieving our annual target of 2.81 working days. The average response time was 2.83 days.
20Identify LCT hotspots using information from smart meters, expert organisations and local authorities, and use this information when making decisions.Information on the location of LCT hotspots has been added to our systems.
21Selectively replace assets using larger assets in areas where more LCTs may be connected to our network.We carried out 23 asset replacement projects, using larger assets, as a result of using information about LCT hotspots.
22Reduce costs for future customers by developing smart solutions to provide alternative and innovative techniques for managing our network.We had a range of innovation projects in progress during the year.
23Provide additional network capacity by using traditional or smart methods.We launched our new Flexible Power brand, so we can now provide an extra 28MW of energy when needed to respond to demand.
Overview of outputs
24Install oversized transformers when replacing assets in areas where demand for power may become higher than equipment can cope with.We installed 21 oversized transformers.
25Use larger cables when installing new network in LCT hotspots.We installed 1.15km of larger cable in LCT hotspots.
Overview of outputs
33Replace 55km of overhead lines in National Parks and AONBs with underground cables.(See note 1 below)To date during RIIO-ED1, we have replaced 17.5km of overhead lines with underground cables.
Overview of outputs
26Make sure all replacement vehicles have lower CO2 emissions than those they are replacing.Changes to emissions tests have led to some increases in the emissions reported for some of our most commonly used vehicles. However, we have beaten our in-year targets.
27Make sure all new or substantially refurbished buildings meet, as a minimum, the excellent standard under the Building Research Establishment Environmental Assessment Method (BREEAM).(See note 2 below)One new depot achieved the ‘excellent’ standard under BREEAM. One refurbished depot achieved the ‘very good’ standard, the maximum rating for a refurbished building.
28Reduce the amount of waste sent to landfill by 20% over the first two years of RIIO-ED1 and 5% per year after this.We have seen a reduction in the amount of waste sent to landfill, and we have achieved our target for the whole of RIIO-ED1.
29Reduce our carbon footprint by 5%.(See note 1 below)Our business carbon footprint has reduced by 17% compared with 2012/2013. We have beaten our in-year target.
Overview of outputs
30Reduce by 75% the amount of oil lost through leaks from oil-filled cables.(See note 1 below)We have seen increases in the amount of oil lost from oil-filled cables. We missed our in-year targets.
31Reduce by 17% the amount of SF6 gas that is lost from switchgear.(See note 1 below)The amount of SF6 gas lost as a percentage of the total amount of SF6 used on our network has reduced from 0.47% in 2015/2016 to 0.30% in 2018/2019 for the whole of our area. However, we missed our in-year targets in the South West and South Wales.
32Install effective oil containment bunds around plant containing high volumes of oil.We have completed work on 134 new and refurbished bunds so far in RIIO-ED1, going further than our forecast of 104 bunds.
Note 1: This target is for the full eight-year RIIO-ED1 period, not for each separate year.
Note 2: This target is for each year of RIIO-ED1.