Meet our Team
Key People - Directors
Gareth Mann - Managing Director

Gareth is a Director of MTA Energy Pty Ltd and MTA Advisory Pty Ltd and possess over 35 years of international experience in Energy and Infrastructure development, financing and operations management. His experience in all major deregulated energy markets (USA and Europe) includes large thermal power generation plant (coal & gas), renewables (wind, hydro biomass, solar and WtE) and upstream oil & gas development. In roads infrastructure it includes the development, commercial structuring and financing of major private toll roads in Australia, USA and Europe.


Gareth has operated at CEO/MD level for Australian and major international energy & infrastructure developers, owners and operators,  and  is therefore well placed to assist clients with the  broad range of issues facing industry in a dynamic and changing energy environment, including corporate strategy and development, commercial and risk management, business case development, mergers & acquisition, due diligence, financial management, project investment & financing, project and asset development, asset management, bid and transaction management, and program / project management.

James Groombridge - MTA Head of Analysis and Risk

Within Australia he has managed a $300m electricity derivative portfolios for Australian Power and Gas (“APG”) prior to it being acquired by AGL and in more recent times held the role of Head of Wholesale at Mojo Power a role that came with the added responsibility of being a “Responsible Manager” under Mojo’s AFSL obligations. 


In-between APG and Mojo Mr. Groombridge worked for a boutique Private Equity firm whose portfolio of businesses included both small energy retailers and large-scale renewable energy assets. 


Having departed Mojo in 2017, Mr. Groombridge provided independent consultancy services to a wide array of clients, which included large renewable energy asset owners, start-up energy retailers and large industrials. The advice provided covered the following areas; 


  • Overall energy market analytics 

  • Hedging strategy development and implementation 

  • Risk identification, mitigation and on-going management 

  • Portfolio construction and optimisation 

  • Load and demand forecasting techniques 

Jeff Starcher - Principal 

BBA, Finance (1981-1985) Texas A&M University 

BBA, Accounting (1981 - 1985) Texas A&M University


Mr. Starcher is a recognised senior energy executive with more than 30 years of diverse business and energy sector experience. He was an active participant and adviser in structuring the deregulation of the electricity supply sector in Texas. His subsequent business experience has been specifically focused on the independent electricity retail part of this sector. He has been the founding member of two successful significant independent retailers (Mpower and MP2 Energy) operating in the Ercot market. 


His expertise covers:

  • Deregulated Energy Market Enterprise Operations 

  • Project Development 

  • Project Finance 

  • Risk Management 

  • Asset Management

  • Asset Optimisation 


Fredrick Mwenye - Financial Controller 

Mr Mwenye is a CA accomplished accounting and finance professional with broad industry experience and strong systems skills. His industry experience spans Energy Technology, IT, Professional Services, Manufacturing, Mining, Agro-industry, Financial Services, Freight and Logistics, Media, and Marketing and Distribution. 

With 25+ years growing businesses across Asia Pacific and Southern Africa, Mr Mwenye possesses significant leadership experience across Strategic Planning, Finance, Business Transformations, Business Development, Board, Governance & Compliance and Technology & Innovation

Within the Energy Technology space, Mr Mwenye spent over four years with a US based global technology entity providing energy management solutions to businesses and professional services consulting. He joined at a time in the business when it was facing issues ranging from recent acquisitions to managing the post-acquisition era and grappling with challenges like integrating acquired entities, operations, culture, and defining the road-map for the future. 

Recognised as having a track record in company restructuring and a talent for building finance teams, including employee development and managing post acquisition requirements and advanced know-how relating to derivative and hedge financial undertakings, Mr Mwenye was given the mandate to strategically develop and manage the finance function post acquisition and partner with the managing director to support the growth of the business.

Mr Mwenye's specialist expertise includes rigorous cost management, facilitating new product development, cash flow management, keeping finance costs to a minimum, productivity and embedding financial ownership across management teams to ensure superior budgetary performance.

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