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Powerstar

Power resilience for a net zero world

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About us

Formed in 2001 in Sheffield, Powerstar is a market-leading smart energy solutions manufacturer.

We design, manufacture, and deliver advanced solutions for specialist energy applications. Our focus is on helping clients solve unique energy problems affecting their business, and Powerstar’s expertise enables a fully bespoke solution to be delivered to meet the customer’s exact needs.

Powerstar is a leading manufacturer of behind-the-meter battery energy storage applications, providing complete power resilience with site-wide Uninterruptible Power Supply (UPS). On top of improving power resilience, these technologies support companies on their path to net zero, which is becoming increasingly important in a world reliant on rapid electrification and digitisation.

Through our dedicated team of technical experts, we have developed technical appraisal and project feasibility capabilities with the application of digital twins, energy control strategy planning, and real-time modelling and simulation for microgrid applications. This unique capability allows us to deliver complex energy projects that have demonstrated proof of concept before installation even begins.

For an overview of what we do and how we do it, download our brochure using the button below.

Download the brochure

BOARD OF DIRECTORS

Our Board of Executive and Non-Executive Directors offers a wealth of experience and knowledge across every area of our business markets.

CHIEF EXECUTIVE OFFICER

DR ALEX MARDAPITTAS

Dr. Alex Mardapittas is the Chief Executive Officer at Powerstar and founded the company in 2001. An experienced chartered engineer, with a research doctorate, Alex has used his extensive knowledge and experience to spearhead Powerstar since its inception.

NON-EXECUTIVE CHAIRMAN

COLIN WELSH

Colin is International Partner at SCF Partners. Prior to that, Colin served as Head of International Energy Investment Banking at Simmons & Company International.

FINANCE DIRECTOR

FREYA HOE

Freya Hoe has been Finance Director at Powerstar since March 2022, following over 9 years as Group Financial Controller. She offers a wide range of experience from big 6 accountancy firm positions and commercial management roles. Freya holds professional qualifications from the Institute of Chartered Accountants in England and Wales, including the ACA qualification and Corporate Finance Diploma. She also holds a BA (hons) in Accounting and Finance.

CHIEF COMMERCIAL OFFICER

ALASTAIR MORRIS

Alastair joined the Powerstar board in March 2021 as Chief Commercial Officer. He brings broad commercial and marketing experience from both corporate and SME engineering businesses, which have taken him to live and work in both Italy and the USA. Alastair has engineering degrees from Cambridge and Cranfield Universities and is a non-executive director of the South Yorkshire Manufacturing and International Trade Forums. He was named 2019 Sheffield Business Person of the Year.

Solon Mardapittas

CHIEF TECHNICAL OFFICER

SOLON MARDAPITTAS

Solon oversees all product development, existing product optimisation, technical issues and R&D. This encompasses numerous engineering disciplines, from large scale power engineering and design to micro-scale engineering such as PCB design. Solon holds a Masters in Chemistry, which includes research projects in organic electronics, and is also a member of the Royal Society of Chemistry and the Institute of Directors.

NON-EXECUTIVE DIRECTOR

STEVE LOCKARD

Steve is the former CEO and current Chairman of TPI Composites and led the company to become the largest independent global wind blade manufacturer, with over 15,000 employees.

He also recently helped spearhead the creation of the newly established American Clean Power Association (ACP).

Senior Management Team

Our commitment to innovation, investment in people, and customer-focused approach is fostered by the combined abilities of our management team and continues to underpin and drive our status as market leaders.

Mathew Hancox

GROUP HEAD OF OPERATIONS

MATHEW HANCOX

Mathew served in the Royal Marines including point man duties during a tour of Afghanistan. Mathew acquired an undergraduate degree and spent several years with JaguarLandRover covering numerous manufacturing, engineering and strategic positions while completing an MBA in his own time. Mathew joined Powerstar to oversee transformer operations in January 2022.

HEAD OF PROJECTS

COLIN JONES

Colin has spent 20 plus years in Project Management, 10 of those years in Team Management & Business Improvement within various sectors including Defence, Nuclear, Oil & Gas and Manufacturing. Colin obtained an MBA in 2012 whilst delivering equipment and Logistics support projects within a private finance initiative, tasked with re-structuring and replacing the British Army Engineering Fleet and its associated support equipment. Colin joined Powerstar in March of 2022 to head the Project management Team.

HEAD OF PERSONNEL

SARAH-JANE O'BRIEN

Sarah-Jane joined Powerstar in March 2022 as Head of Personnel. She brings comprehensive strategic, developmental and operational HR experience from corporate and consultancy businesses, to include working in Europe, the Nordics, US, and West Africa. Sarah-Jane is a Chartered Member of the CIPD, has a diploma in coaching and holds a range of counselling and psychometric assessment qualifications. She has a BSc (Hons) in Psychology with Counselling, and is a Graduate Member of the BPS / Division of Occupational Psychology.

What our customers say

“Powerstar identified waste that we did not think we had. They diligently overcame issues during commissioning and have provided us with a fault-free system that saves what they promised.”

MARK BOXALL Managing Director Tetra Pak CPS Ltd

“Powerstar has been a major part of our comprehensive energy efficiency programme. It is perhaps the simplest and most effective way to instantly save energy and therefore we would highly recommend Powerstar systems.”

MARK ORPIN Head of Energy Management ASDA Supermarkets

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Awards & Accreditations

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