About Us

Main personnel

Stewart Highnett   
Stewart trained as an electrician and has run his own company since 1978, forming Highnett Ltd in 1994, and then purchasing Macklin Controls in 2008.  Highnett Ltd has specialised in the oil, water and gas industry carrying out electrical, process, instrumentation and control systems.  Macklin Controls builds & distributes switchgear and associated equipment throughout the UK and are authorised distributors for Kraus & Naimer products, including AC & DC isolators. In March 2016 Highnett Ltd added Solatest to their group of companies.

Christine Highnett
Christine has worked alongside her husband for many years and manages all the daily office requirements and carries out all the financial accounts work.  She also has a very good understanding of the various components that are required for the G59 panels and the other products Macklin Controls manufacturers and distributes.

Eddie Buckley   
Eddie is a Chartered Engineer having started his career with a major manufacturer of Motor Control Centres and been continually involved in electrical power engineering and building services up until 6 years ago when he started working with John Gordon carrying out G59/1 Testing. In the last 6 years he has completed more than 700 G59 tests on generating systems up to 5 MW. Eddie still has connections with Solatest through Highnett Ltd.

John Gordon   
John started work in switchgear specialising in general synchronising and power management before moving to Control and Instrumentation following the introduction of the revised G59 engineering recommendations. He wrote the design specifications for a number of G59 relays presently on the market. He has been carrying out G59 testing exclusively for the last 17 years on PV systems, wind & water turbines, landfill and standby generators. He has recently been lecturing on the topic on the technical aspects for large scale PV systems. John was originally connected to Solatest Ltd but has now retired.

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