UK Power Reserve’s management team has a unique breadth of expertise which provides the company with first-class leadership and strategic direction. Their experience spans a wide range of roles within private sector energy and engineering companies and the public sector.

Sam Wither

Head of UKPR

Sam Wither

Head of UKPR

Sam Wither joined UK Power Reserve in 2010 at the early stages of its story and joined the Board of Directors in 2014.  Sam is responsible for driving forward development, growth and commercial opportunities to generate strong revenue performance from all assets within the business. 

Prior to joining UK Power Reserve Sam spent the majority of his career within the UK power sector working for National Grid. Sam’s experience has breadth and depth across Gas and Electricity markets developed through roles specialising in Network Operations, Contract Management, Business Development and Regulatory Affairs.

Sam became Head of UK Power Reserve in May 2018.

Jon Addis

Chief Financial Officer of Sembcorp UK

Jon Addis

Chief Financial Officer of Sembcorp UK

A qualified ACA, Jon Addis joined UK Power Reserve in 2013 as part of its ambitious plan for growth in the UK energy sector. He was appointed to its Board of Directors in 2014. Jon has a proven track record of working with investors and senior management to develop and implement successful corporate growth strategies. As CFO, Jon is driving forward the business' strategy of continued expansion in the UK energy market.

With a career spanning roles across global accounting firm Arthur Andersen; the private equity division of RBS Group, RBPE; heavy equipment rental, Hydrex Group; the private equity division of Lloyds TSB, LDC; property consultancy, DBK; and business centre operator, Citibase PLC, Jon has a breadth of experience raising finance in the markets and leading successful buy and build and investment-led growth strategies.

Jon Addis became CFO of Sembcorp UK in May 2018.

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