Design Draughting

Heidi Ma

Heidi has a double BE in Mechatronic and Petroleum Engineering and is also an experienced draughtsperson, after 5 years working in the oil and gas industry and 2 years working in the building industry. In 2018 Heidi had joined the Draughting team as a Draughtsperson, she is getting involved in secondary design drawings for transmission, generation and distribution projects.  

Dean Prattley

Dean is a recent graduate from CPIT obtaining a BEngTech. Dean also completed courses in PLC programming, automation and power systems. During his time at MEL Dean has been involved in substation design draughting.


Eliza Chung

Eliza has a BE (Hons) in Electrical Engineering from the University of Canterbury and is also a qualified draughtsperson.  Eliza joined MEL in 2014 and has proved to be a competent and careful draughtsperson, draughting primary and secondary design drawings of a high standard for a number of transmission and distribution projects.


Simon Woffenden

Simon has over 20 years’ experience in NZ Electricity Industry, producing drawings for building services and primary and secondary substation design consultancies.  Simon has a strong background in AutoCAD & Raster Design and has produced substation design drawings for Mitton ElectroNet on a range of projects.

Quinton Moss

Quinton has over 35 years’ experience as a project manager and design draughtsman.  Prior to joining MEL in 2009 Quinton was responsible for a number of HV (33 kV, 66 kV, 110 kV and 220 kV) equipment installation projects, managing personnel, resourcing, health and safety and technical design.  Since moving to MEL, Quinton has applied his design draughting expertise to working both independently and with Engineers to produce primary and secondary design drawings for generation, transmission and distribution infrastructure.  

Brian Avery

Brian has over 26 years’ experience in the electricity supply industry.  Brian started in 1979 with the NZED, producing design drawings and designs before moving to Transfield services where he worked as the lead ing hand and maintenance contractor for various projects including HV Transformer installations maintenance & refurbishment and working as a draughtsman.  Brian joined Mitton ElectroNet in 2011 and has used his extensive site experience and design draughting knowledge to produce high quality drawings for a wide variety of electrical assets. 

Hels Lopez


Hels has over 13 years’ experience as a design draughtsman for consultancies in Christchurch.  Hels joined MEL in 2008 and has worked with Engineers to produce drawings for a wide range of generation, transmission and distribution clients including primary and secondary design drawings for 33 kV, 66 kV, 110 kV, 220 kV substations and power stations. 

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