Skip to main content
Recite me

Meet our executive team

Our directors are responsible for ensuring our long-term success through determining our strategic direction and objectives and effectively overseeing them. 

Ian Williams

Group Finance Director

Ian joined the company in 1991 as a graduate management trainee. He has held the roles of operations financial controller and following the successful integration of Hyder became Management Accounting Manager. In 2001 he became the WPD group head of internal audit and led the implementation of the Sarbanes Oxley Act. In 2006 he was seconded to the role of Treasurer. After successful refinancing of the WPD bank facilities and the additional long term debt financing of South Wales and South West including WPD’s first Index Linked issuance, he went back to the audit role. Prior to the Midlands acquisition he reverted back to the role of Treasurer in order to undertake the required refinancing of both the long term debt and bank facilities, he was then appointed full time into the Treasury role for the WPD Group.

In February 2015 he was appointed as Resources and External Affairs Director, with responsibilities include HR, Payroll & Pensions, Corporate Communications and Regulation. In April 2018 he was appointed to the role of Group Finance Director.

Alison Sleightholm

Resources and External Affairs Director

Alison joined Western Power Distribution (then SWEB) on graduation, in 1985 and has had a number of engineering roles across the business. 

As WPD’s Regulation and Government Affairs Manager she has played a leading role in regulatory price reviews and the development of WPD’s business plan and stakeholder engagement programme. She also was heavily involved in the acquisition and integration of both South Wales and more recently the Midlands distribution networks into WPD. 

On April 1 2018 Alison became WPD’s Resources and External Affairs Director. 

Alison has a BSc in Electrical Engineering from Southampton University and is a Chartered Member of the Institution of Engineering and Technology.

Graham Halladay

Operations Director

Graham is the Operations Director for Western Power Distribution. He has responsibility for managing the distribution of electricity to eight million customers across the largest distribution network in the UK. 

He joined Western Power Distribution (then SWEB) in 1983 as an apprentice. Graham has undertaken numerous operational and senior management roles within the business. The most recent being Network Services Manager DSO, responsible for the company’s transition from a Distribution Network Operator (DNO) to Distribution System Operator (DSO), dealing with internal business system change and external engagement with Ofgem, BEIS and the wider industry.

You may also be interested in...

News & events

Find out about the latest headline stories and upcoming events. 

Find out more

Your power future

Find out more about how you can get involved with helping us shape our future business plan. 

Find out more

Our business

We provide training, contracting services and more while maintaining a 100% customer service satisfaction record.

Find out more