• News
  • Press Releases
  • Renewable News

Enspec announces significant leadership hire

Power quality engineering company Enspec has added a key recruit to its leadership team.

Tony Jefferson, who has more than three decades of experience in the energy industry, joins St Helens-based Enspec as the new head of business development.

As a former global head of sales for various Siemens business divisions in different countries around the world, Tony has also worked for Shanghai Shemar Holdings.

Tony is based in Enspec’s temporary Manchester city centre office, WeWork, No. 1 Spinningfields.

Commenting on his appointment Tony said:

“After 30 years of international experience in the energy industry I was really searching for an opportunity where I could have more of a direct contribution to the Energy transition. I found that with Enspec. A team of dedicated and experienced problem solvers who just get things done.

“Team Enspec is in front of the customer, solving problems, creating opportunities, and implementing solutions. Every day at Enspec I work with great people that make clean and reliable power a reality.”


Having been founded in 1999 Enspec provides a range of services to its customer base, including power system studies, power quality analysis, renewable energy consultancy and site maintenance.

One year ago husband and wife Tim and Mara Rastall became the new co-leaders of Enspec following the completion of a management buyout (MBO).

Enspec – whose clients include large energy generators such as major wind farms, solar farms and hydro plants and major energy consumers including manufacturers and hospitals – has since gone through a period of significant business growth.

Services provided by the company, which also boasts a design and manufacturing site in Newcastle, include power system studies, power quality analysis, renewable energy consultancy and site maintenance. Enspec also designs, manufactures and commissions bespoke products, including Harmonic Filters, Reactive Compensation, Power Factor Correction and Point-on-Wave Switching.

Enspec CEO Mara Rastall said: “Since last year’s MBO Enspec has grown its customer base significantly.

“Hiring the best in class in key roles has been a central focus of late and Tony Jefferson’s appointment represents just this.

“Earlier on in his career Tony enjoyed incredible success while working for Trench, which went on to be acquired by Siemens, and his career has continued to flourish ever since.

“We are delighted that he has joined and filled what is a crucial position at Enspec. He brings great skills, experience and personality to the team and our customers, as well as unique advisory aspects at board level.

“As we continue on our journey within the growing energy industry we’ve no doubt that Tony will help us achieve our newly refined business goals, while also ensuring that Enspec continues to play a part in the global net zero revolution.”