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Meet the Team

Award-winning. Knowledgeable. Passionate. We're here to help!


Jack Hooper

Jack Hooper

Founder and CEO

Jack is the CEO and founder of GEM Energy, a multiple award winning energy efficiency and renewable energy services provider.

He has a Bachelor in Science (Business & Management) (Hons) and has been involved in the renewable energy sector since 2011. He quickly identified a need for a professional services provider in a market that can be ‘very complex and difficult to navigate’.

Jack founded GEM Energy in Emerald, Queensland in 2013 with the vision of providing integrated turn-key solutions to help organizations combat increasing power prices in regional areas.

Since then, GEM Energy has established itself as one of Australia’s leading renewable energy providers.

Ben Kolle

Ben Kolle

General Manager

Ben has eight years of experience in the energy and solar sector working as a system designer and integrator. At GEM Energy he leads a team of dedicated engineers and industry enthusiasts and successfully manages over 30 residential and five commercial systems simultaneously per month.

Apart from his involvement in many challenging Grid and Off-Grid designs, Ben has worked on developing standalone power solutions for the UN (United Nations) and has also worked with a number of leading renewable energy manufacturers in Germany and Australia.

He is passionate about innovation and optimization in the renewable energy sector and ensures that every GEM Energy Australia customer is getting the best possible technical and financial solution.

Dimitar Iliev

Dimitar Iliev

Electrical Engineer

Dimi has several years of experience in the energy efficiency sector as well as the solar industry. He’s developed several large MW scale projects in Europe and America, not limited to solar. As an Electrical Engineer with a Masters Degree in Solar Energy Engineering he has a unique set of abilities which enables him to thoroughly design and oversee a typical solar and energy efficiency project from initial design, project management and implementation.

He’s been intimately involved in several energy improvement initiatives including Power Factor Correction, Battery Solutions, LED light improvements as well as system demand control and optimization. His experience from Europe, US and now Australia, as well as his educational background make him the perfect candidate for development and execution of any kind of project starting from analysis to implementation.

In October 2016, Dimi won two awards from the CEC for best grid-connected battery-backup project and best grid-connected project over 100 kW.

Aaron Hilton

Aaron Hilton

Business Development Manager for SEQ

Aaron works primarily on commercial projects. He joined our team in early 2016 after working for SunEdison, the world’s largest renewable energy developer, heading up their Queensland commercial solar division. He has worked in the renewable sector since 2010 and has extensive experience in commercial and residential solar. Aaron will tell you that he is a ‘Greenie’ – and that shows in his passion for what we do.

”Commercial solar is a very exciting space to work in, it’s dynamic and ever-changing. One thing always remains the same though, a commercial project needs to make financial sense before a business will proceed. That is why I have joined the GEM Energy team, they understand better than anyone else how to gear a project to provide the best possible return for the customer.”

Craig Brooks

Craig Brooks

Sales Representative, Regional QLD

Craig joined GEM Energy in early 2015, and has quickly developed industry knowledge well beyond his experience. Craig came to us from his role as a TBS Specialist with Telstra business, and after previously working in management the natural progression was to his own business.

Craig and his wife have been running their own business in Bundaberg for over ten years where he has been responsible for the financial side of things. His understanding of the importance to control operational expenses lets him help other businesses, both small and large, to find energy solutions that save them money from day One.

Craig spends his time working with clients to ensure that they are getting a solution that perfectly suits their needs and in the time frame that works for them.  He stays in contact with his clients not only throughout the process but also after the installation is completed to ensure that the customer is completely satisfied.

Matt Baldwin

Matt Baldwin

Sales Representative, Regional QLD

Matt joined the GEM Energy team as a sales consultant in 2015, after a varied career in mainly community centred fields. It was his stint in the coal-mining industry that drove him to pursue a career in solar, where he would be able to both serve the community, as well as the environment. He works primarily with large businesses in Rockhampton and has been a key part of a 500kW installation for Dobinsons Springs and Suspension.

“I am passionate about my role as a sales consultant with GEM Energy, and always look to give my customers the best outcome possible in their strive to combat ever increasing electricity costs. It has been inspiring to see the giant steps being taken by GEM Energy in their bid to bring cost-effective and green solutions to both individuals and companies alike.”

Matt Wigginton

Matt Wigginton

Mechanical Engineer

Matthew graduated from the University of Queensland in 2012 with a Bachelors Degree in Mechanical Engineering. Since then he has earned valuable contracting and consulting experience in Building Services Engineering and Project Management.

Matthew brings a multi-faceted skill set to GEM Energy and is primarily responsible for managing commercial projects.

John Palmer

John Palmer

Sales Representative, NSW

After four years of coordinating and hosting commercial solar seminars in the US, John has worked in the Australian solar industry since 2013. He has a strong background in marketing for petro-chemicals and corporate superannuation, as well as acknowledged expertise in property development and project facilitation.

John specialises in commercial and corporate solar and represents GEM Energy in New South Wales.

Michelle Prendergast

Michelle Prendergast

Administration Officer

Michelle is GEM Energy’s Administration and Customer Service Guru. Still based in Emerald, she manages all Residential projects, submits IES and STC (government rebates) applications, orders stock and schedules installs with our installers and customers.

She joined GEM Energy in 2014 after working in Administration positions for 20 years, mainly in the mining industry.


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What our customers say about us

The installation was efficient and we were kept informed every step of the way.

Gayle Harper

Mt Isa

This time last year my bill was just over $1,000 and this time it was a measly $128.48 and that included $124.48 solar scheme credit. Thanks everyone at GEM, you have made my life a lot easier 🙂


Gin Gin

Great honest company I would recommend to anyone.

Bob Greaves


grid connect with battery backupgrid connect over 100k obsequentia clean energy council
GEM Energy Australia