Key performance targets

Please see below results for our key performance for 2017/18, in relation to network reliability, customer service and guaranteed standards of performance.

Network performance

We measure our performance in three ways:

Security of supply is the number of supply interruptions recorded as a percentage of customers connected in a year. We call this 'Customer Interruptions' (CI);

Availability of supply is the average number of minutes that a customer has their supply interrupted. We call this 'Customer Minutes Lost' (CML);

Restoration of supply is the percentage of customers restored in one hour if their electricity supply is interrupted due to a fault.

The energy regulator, Ofgem, has set us tough new IIS (Interruptions Incentives Scheme) targets which we are pleased to say we exceeded in 2017/18.

Security of supply 2017/18

Availability of supply 2017/18

These figures are based on all interruptions lasting three minutes or more on the WPD network including those caused by bad weather, faults and 50% of those due to pre-arranged shutdowns. We exclude the impact of exceptional events, including severe weather.

Restoration of supply - Target 60

In addition to the performance reported to Ofgem, WPD has its own initiative called Target 60.

Target 60 is designed to ensure that as many customers as possible have their electricity supply restored within one hour of a HV fault.

For 2017/18 our performance against this initiative was:

• WPD South West = 85.6% of customers restored within one hour

• WPD South Wales = 87.2% of customers restored within one hour

• WPD East Midlands = 88.9% of customers restored within one hour

• WPD West Midlands = 90.7% of customers restored within one hour

Customer service performance

Customer satisfaction

As part of Ofgem’s Broad Measure of Customer Satisfaction, a research agency undertakes satisfaction surveys every month with around 350 customers for each of the 14 electricity network companies. Surveys take place with customers who have had an interruption to their electricity supply (planned or unplanned), applied for a new connection or contacted the company with a general enquiry. In 2017/18, WPD ranked as follows:

Contact centre performance

Complaints

WPD complies with the Complaints Handling Standards Regulations and an independent Energy Ombudsman service deals with unresolved complaints about energy companies.

Western Power Distribution has a golden rule – ‘treat the customer the way you would like to be treated’. We aim to resolve all complaints from customers as quickly as possible without the need for the customer to take the matter to the Energy Ombudsman. During 2017/18 WPD South West, WPD South Wales, WPD East Midlands and WPD West Midlands as a whole received 7,042 complaints. In 17/18 there were no findings against WPD by the Energy Ombudsman.

Guaranteed standards of performance

Guaranteed Customer Service Standards are set out by the energy regulator, Ofgem. Our performance against the standards in 2017/18 is set out below.

Appointments

If we visit a customer for any reason, they will be offered an appointment during the morning or afternoon or within a two-hour time band. If we fail to make or keep that appointment we will arrange for the customer to receive a £60 payment.

WPD South West, WPD East Midlands, WPD West Midlands and WPD South Wales all achieved 100.0% success.

Company fuse failure

If a customer loses supply due to the operation of their main fuse, we will visit within 3 hours on weekdays and 4 hours at weekends. If we fail to do so, we will pay the customer £60. WPD South Wales, WPD South West, and WPD West Midlands achieved 100% success. WPD East Midlands achieved 99.9% success.

Electricity supply failure

If our supply network fails we will restore supplies within 12 hours of the fault being reported during normal weather. (If a single incident on our distribution system affects 5,000 premises or more, we will restore it within 24 hours of first becoming aware of the problem.)

If we fail to do so, we will pay the customer £150 (£300 for business customers). We will pay a further £70 for every additional 12 hours that a customer is without electricity. WPD South Wales and WPD East Midlands achieved 100% success with WPD South West and WPD West Midlands achieving 99.99% success.

If our supply network fails during severe weather we will restore supplies within 24 or 48 hours of the fault being reported. If we fail to do so, we will pay the customer £75. We will pay a further £70 for every additional 12 hours that a customer is without electricity up to a maximum of £700.

WPD South West, WPD South Wales, WPD East Midlands and WPD West Midlands all achieved 100% success.

Multiple interruptions

If a problem on our system causes a customer to be without power for three hours or more, on four or more different occasions in a single year (from 1 April), they are entitled to a £150 payment. Customers can claim within three months of the end of the year to which the claim applies.

WPD South West, WPD South Wales, WPD East Midlands and WPD West Midlands all achieved 100% success.

Notice of Planned Interruption to Supply

If we need to interrupt a supply for testing or maintenance, we will give the affected customers at least 2 days' notice. If we fail to do this, customers can claim £60 (£120 for business customers).

WPD West Midlands, WPD South West, WPD East Midlands and WPD South Wales achieved 99.99%.

Voltage complaints

If a customer contacts us about a problem with their supply voltage, we guarantee to reply to the enquiry within 5 working days or make an appointment to visit and investigate within 7 working days. If we fail to do so, we will pay £60.

WPD South West, WPD South Wales, WPD East Midlands and WPD West Midlands all achieved 100% success.

Our performance against the Connection Guaranteed Standards of Performance for 2017/18 can be found here.