Our Team


Trevor is a professional engineer with experience in the wind, solar PV, solar hot water and efficient lighting markets. His experience has included wind feasibility assessments, wind monitoring, solar PV design and solar hot water design for medium sized projects and market studies into renewable energy systems and products. Trevor has led several major solar projects at Enhar including feasibility projects for Councils such as Frankston, City of Moreland, City of Melbourne, City of Manningham and utilities such as Melbourne Water.

Trevor has completed a grid connect solar PV design course at RMIT University, various short courses through the Green Plumbers Association and a "Small Wind Assessors Course" with the Institute of Sustainable Futures. He has also completed the Solar PV with Battery Storage training course delivered by the Solar Council of Australia, SMA academy solar inverter training and keeps Enhar up to date with the latest in integrating storage with solar.

Prior to joining Enhar, Trevor has also volunteered for organisations such as Engineers without Borders and CERES, including a stint in India researching appropriate and sustainable energy, water and sanitation options for a rural community.


Demian Natakhan is a Chartered Energy Engineer with 18 years of experience in taking renewable energy and energy efficiency projects projects through planning to implementation.

In the development of renewable generation projects, Demian has managed all aspects of the development process of both utility scale and 'behind the meter' projects. His experience spans identifying sites, stakeholder engagement, feasibility and business cases, resource monitoring and analysis, permits and approvals, construction planning and coordination.  

His expertise includes wind farms, behind-the-meter wind turbine projects, solar PV commercial rooftop and utility scale solar farms.

He also has expertise in energy efficiency including audits in commercial and industrial environments. Demian has provided Level 2 energy audits for manufacturing and food businesses as well as educational facilities.

Demian leads major grant funding applications for a range of renewable energy and efficiency projects, staying abreast of State and Federal grant schemes.

Roger Mansfield - Principal Technical Consultant

Roger Mansfield Photo

Roger Mansfield Roger is a CEC accredited Solar Grid Connect PV Designer with over 22 years’ experience in electrical engineering including project management and design of solar power systems. Roger has worked for consultancies and turnkey solution providers, delivering over 6MW of commercial behind the meter systems to date.

As a Project Manager/Solar Designer at Solar Systems and as a Solar Designer at EnviroGroup his work covered commercial solar applications. His principal areas of focus were project management, contractor management, grid connect design, project estimating, secondary protection, equipment specification, electrical licensing applications, connection approvals, commissioning, training and operations & maintenance.

Key Skills:

  • Solar power design, instalaltion and comissioning
  • Solar installation specificaton
  • Grid connection protection & export control, monitoring, 
  • Developing technical specifications, drawings and tender documents 

James Mumford - Senior Project Engineer

James is a professional Mechanical Engineer who graduated from RMIT University, Melbourne and holds CEC Grid connect design accreditation with over six years of experience in all aspects of solar power generation from commercial grid connect to operations & maintenance, project management and product design. James has worked as a Project Manager and Solar Engineer at Energy Matters / SunEdison where he worked in commercial grid connect design, SLDs & secondary protection, equipment specification, connection approvals and commissioning. James has an extensive and in-depth engineering understanding of photovoltaic technology and Australian Standards.

Key Skills:

  • Solar power design, instalaltion and comissioning
  • Grid connection protection & export control, monitoring, O&M reporting
  • Solar installation specification, visualisation and 3D modelling
  • Developing technical specifications, drawings and tender documents and managing projects to completion on time and to budget
  • Project Management
  • Customer liaison and stakeholder engagement

Rana Mitra - Senior Engineer

Rana is a professional electrical engineer from University of Technology, Sydney with a CEC Grid connect design accreditation and almost 10 years experience in all aspects of solar power generation from commercial grid connect to remote area power system design, maintenance and project management.

Rana has an extensive and in depth engineering understanding of photovoltaic technology and Australian Standards and prides himself on being able to communicate effectively and work with a diverse range of people. His technical understanding and thorough approach has allowed him to successfully manage solar projects as well as lighting projects.

He completed five years working in Central Australia where he was a maintenance project engineer for Bushlight, a remote organisation in Alice Springs providing technical assistance, design and project management of remote area power systems for Indigenous communities. He then worked as a Technical project officer at MacDonnell Regional Council - a remote local government organisation where he lead remote projects, tender and contract management, documentation, procurement and worked extensively with storage in solar and solar/diesel hybrid remote area power systems, through contractors as well as hands-on in the field.

At Enhar, Rana manages project deliver including multi-site rooftop commercial solar rollouts, solar-storage hybrid design, commercial grid connect design, SLDs & secondary protection, equipment specification, connection approvals and installation/testing. 

IAN FOSTER - Project Manager

Ian is a CEC accredited Solar Grid Connect and Stand-Alone PV Designer with over 14 years experience in project management, system design, sales and distribution of solar power technologies.  Ian has worked within different levels of the solar industry being, turnkey solution providers, product manufacturers and wholesale distributors which provides an in-depth knowledge of the solar PV industry.  He prides himself on effective communication with a wide variety of stakeholders, this coupled with solid experience and technical knowledge has resulted track record of successful projects. 

Key Achievements
• Grid connected PV installations with various commercial clients up to 220kW, operation and maintenance experience up to 1MW.
• Project management, system design, user training of >20 remote area power supplies with diesel backup. Individual system up to $500K capital cost.
• Established network of wholesale solar sales of up to $5.2M per year.
• End to end project management of >100 residential PV systems



FUAD HANIN - Electrical Engineer

Fuad is a professional electrical engineer from the United Arab Emirates. He has more than 10 years of experience in the HV/MV/LV electrical industry from designing, commissioning to operations and maintenance. He is also accredited Senior Authorized Electrical Person for High Voltage Switching & Manoeuvring by ADCO, a UAE based Onshore Oil Company. He has worked as an Electrical Engineer across different key positions within the fields of Maintenance, Technical Support, Engineering and Planning for large scale power generation projects. 
He moved to Melbourne in November 2016 and joined Enhar in 2017. He is one of our most 'techie' solar Electrical Engineers, undertaking commercial PV grid connection design, protection grading study, voltage rise calculations, schematic wiring and commissioning of secondary protection system for commercial solar systems. 

Key Skills
• Solar PV project detailed design
• Protection Systems Design & Grading Study (Etap & Powercad5)
• Generation of CAD Drawings (SLDs & Schematic Wiring)
• Solar PV grid connection applications
• Operations & Maintenance of MV/HV Switchgears and equipments
• Developing technical specifications and evaluation of bids
• Condition Monitoring of electrical equipments such as Transformer Oil BDV tests, Partial Discharge, Battery Loading Test, secondary injection tests 

Richard Keech - Technical Associate

Richard is a professional engineer, with a masters of environment majoring in energy efficiency and implementation.

Richard has previously worked as a systems engineer assisting in the design, optimisation and certification of solar systems. He has contributed to Beyond Zero Emissions since 2007 in both the Zero Carbon Australian Stationary Energy plan and the Buildings Plan. In addition he is a regular contributor to ReNew magazine and reneweconomy, being a previous convenor for Moonee Valley Climate Action Group and contributed to the Moreland community solar group.

He is a contributor to the recently released Efficient Hot Water Booklet published by the Alternative Technology Association.

Richard is engaged by Enhar to assist on projects including energy audits and grant applications.



Enhar were engaged to conduct a solar feasibility study at different Council buildings. It was a really positive experience, they were really flexible and easy to work with. The report was delivered on time and it covered all our expectations.

Juan Donis
Warrnambool City Council
July 2018

Easy to work with, knowledgable explained technical concepts in a way that could be easily understood. Delivered high quality reports and technical documentation. The technical guidance provided enabled Council to prioritise and deliver projects w ...more

Leanne Stray
Sustainability Officer, Bayside City Council
Sept 2017

Enhar has provided high-quality services for a behind-the-meter renewable energy feasibility study for a regional water corporation. Enhar delivered their work ahead of schedule, were extremely cost competitive and provided a detailed and thorough ...more

Michael Thomas
Energy officer, Barwon Water
Aug 2017

The technical analysis seemed excellent, objectively advocating issues of importance to the client in a clear comprehensive suite of reports.

Leonie Kelleher - Environment and Planning Law Principal
Kellehers Barristers and Solicitors
Feb 2017

Enhar provided us with a well-written and very valuable report that was concise, clear and has given us the necessary information to make an informed decision in relation to rooftop photovoltaics. Enhar were very receptive to requests and provided ...more

Simon Dormer - Sustainable Design Officer
Hobsons Bay City Council
Sept 2015, Melbourne

Enhar provided good service for us and were always flexible in helping us reach our goals. We would recommend them to anyone looking for assistance.

Jarryd Thraves
Alternative Resources Management Pty Ltd
Sept 2015, Perth, Western Australia

We have been delighted with the service provided by Enhar on our Solar Feasibility and Detailed Design Study - great time management, open communication channels and high quality results.

Prue Robertson - Climate Change Officer
Frankston City Council
Nov 2014

Enhar were a pleasure to work with and provided us a high standard report.

David Bell
Senior Sustainability Planner, Warringah Council
March 2011

We were delighted by Enhar's communication both before and during our project. We were also very impressed by their professional reporting and informed recommendations. They made sure to provide us with what we were after- not just what they w ...more

Stephen Devenish - Environmental Engineer
Manningham City Council
Nov 2014

Enhar successfully delivered a comprehensive micro generation feasibility study for Moreland City Council in 2014. Additionally we asked Enhar to deliver detailed designs for commercial scale PV systems across 11 of Councils high profile buildings ...more

Stuart Nesbitt - Climate Change Technical Officer
Moreland City Council
Sept 2014

We initially engaged Enhar to complete a solar energy audit to better understand how solar energy would benefit the Hospital, and to ensure that our infrastructure was able to handle the installation. 4 days after we engage Enhar a grant became av ...more

Michael Giffard - Project Officer
Nathalia District Hospital
Feb 2014

The assistance Enhar provided for obtaining capital funding under the Victorian State Government's SRSB Energy and Materials Program was very professional and of a high standard. Enhar accepted the challenge to work within a very short time fr ...more

Guenter Fischer - Production Manager
Sun Ace (Australia) Pty. Ltd
January 2014

Enhar provided Canadian Solar with support in an ARENA grant proposal and Market Research regarding Solar PV+Energy Storage Systems (ESS). Canadian Solar (Australia) Pty Ltd is very pleased with Enhar's services and the high-quality results we ...more

Daniel Ruoss - Director of Project Business
Canadian Solar (Australia) Pty Ltd
March 2014

In the current tough manufacturing environment, containing costs is critical and no costs are increasing more rapidly than energy costs. But where do you start? Wood Furniture contacted the team at Enhar to conduct a full energy audit to highlight ...more

Rod Massey - Managing Director
Woods Furniture
May, 2013

Enhar were engaged by Essential Energy to undertake a wind study for a small scale wind turbine. The report was prepared on time with a minimum of fuss. The team were easily contacted and interpreted comments and information supplied accurately wi ...more

Trevor Whitehorse - Group Manager
Intelligent Network Strategy
Essential Energy - January 2013

Enhar have an in-depth grasp of the detailed subtleties of energy assessment. Anyone requiring an understanding of this complicated industry to evaluate needs or offer energy solutions will be well-equipped to make sound decisions or increased cr ...more

Paul Morris
EnergyPak - September 2012

Faced with the time consuming administrative process to complete the Clean Energy Grant, we engaged Enhar to complete our application. Both Chris & the team at Enhar provided an excellent and timely service.

Simon Whiteley
Managing Director and CEO
Corex Plastics

The report was fantastic.  It was just what we were looking for.  It had plenty of detail and was presented in an easy to understand format.

Ryan Walkenhorst
Sustainability & Environment Manager
Melbourne Water Eastern Tertiary Alliance

Mornington Peninsula is very pleased with the services delivered by Enhar in undertaking our recent wind resource monitoring project. Enhar's technical competency, quality control, customer service and clear presentation of the results have g ...more

Jarrod Filosa
Sustainable Energy Officer
Mornington Peninsula Shire

Manningham City Council greatly values Enhar's committment to quality and customer service, and also appreciates Enhar's professional advice in regards to measuring wind resources, and their technical capabilities to deliver complex proje ...more

Tom Duncan
Strategic Sustainability Planner
Manningham City Council. February 2009

Enhar investigated every avenue to ascertain where our power consumption was being used and how to curtail it. Their attention to detail was admirable.

Neville Faulkes, Campus Manager
Girton Grammar School. July 2009

We have been working with the Enhar team since 2008. The Diamond Energy / Enhar working relationship continues to be a collaborative partnership that allows both parties to explore mutually beneficial areas and exchange knowledge.

Mark Bertoncello
Chief Investment Officer
Diamond Energy. July 2010

Enhar News

We’re recruiting! Solar farm development consultant and commercial solar designer sought

Monday February 04, 2019 -

With strong growth in the industry, 2018 was our biggest year ever and 2019 is shaping up to be just as big. Enhar is currently seeking smart cooki


Telecoms towers – our designs ensuring your mobile signal is 100% solar

Monday December 17, 2018 -

Enhar has been appointed by several clients to design solar power supplies for a major telecommunications infrastructure rollout around Australia.


Enhar hosting conference: Large scale solar for Local Councils

Friday November 02, 2018 -

We are looking forward to hosting our upcoming 1 day conference: Large Scale Generation for Local Councils Time and place: Friday 9th November 9am-


Enhar speaking at All Energy on Local Council solar farms

Tuesday October 02, 2018 -

One of Enhar’s Directors Demian Natakhan will be speaking at All Energy tomorrow in Melbourne. The session is at 11.20am, Day 1 of the confer


Enhar commences work on BCEC solar PV in Southbank Brisbane

Tuesday October 02, 2018 -

Enhar has commenced engineering work on the Brisbane Convention and Exhibition Centre. An iconic and publicly owned building is located in the hear