Locally owned and operated, Rimfire Group is an NT family-owned group of multi-disciplinary companies servicing the full spectrum of the electricity industry in the Northern Territory providing complete solutions in electricity retail, solar, and power generation:
The Territory’s largest independent electricity retailer providing services to commercial, industrial, government and residential customers.
A leading Territory provider of solar and battery storage design and installation services for commercial and residential applications.
Provides project structuring advice, together with project delivery services for commercial and utility-scale applications.
With offices in Darwin, Katherine, and Alice Springs, we proudly serve customers across all NT regulated grids and work with government, industry, and communities to build a stronger, more sustainable energy future for our Territory.
We take time to understand each customer’s goals and design tailored solutions that reduce their overall cost of energy.
Our projects are delivered responsibly, safely, and with minimal environmental impact.
We use proven technology partners to ensure maximum efficiency and long-term savings.
We directly employ accredited installation teams to guarantee quality, consistency, and ongoing support.
We prioritise local suppliers, contractors, and services, supporting the NT economy and local organisations across the Territory.
Rimfire Group is guided by an experienced leadership team with decades of combined expertise across the electricity industry.
Advisory Board
Advisory Board
Advisory Board
Founder / Managing Director
Chief Operating Officer
Chief Financial Officer
Founder / Finance Manager
Sales Director
Operations Manager
General Manager Retail
General Manager Development
Development Finance Manager
A selection of utility-scale projects that demonstrate Rimfire Group’s capability across scale and sector.
| Role | Developer |
|---|---|
| Size | 10MWac |
| Location | Batchelor NT 0845 |
| Technology | Central inverters |
| Mounting | Single-axis tracking |
| Role | Developer |
|---|---|
| Size | 12.5MW |
| Generators | Caterpillar G3520H |
| Location | Wishart, NT 0822 |
| Fuel | Natural gas |
| Role | Project Manager |
|---|---|
| Size | 2MW solar 1.9MWh batteries |
| Contract | EPCM |
| Installation | Fixed mounting |
A selection of commercial and residential projects that demonstrate Rimfire’s capability across scale and sector.
| Size | 99.9kWp |
|---|---|
| Modules | REC 370W |
| Inverter | Fronius Symo |
| Mounting | Roof-mount |
| Size | 464.9kWp |
|---|---|
| Modules | Q-Cells 350W |
| Inverter | SMA Core1 50kW |
| Mounting | Roof-mount |
| Size | 99.6kWp |
|---|---|
| Modules | Sunpower 415W |
| Inverter | SMA STP25 |
| Mounting | Roof-mount |
| Size | 7.4 kWp |
|---|---|
| Modules | Canadian 440T W |
| Inverter | Sungrow SG5.0RS |
| Battery | Sungrow SBR160 |
| Mounting | Tin Roof Mount |
| Size | 18.52 kWp |
|---|---|
| Modules | Aiko 375W |
| Inverter | Sungrow SH10RS |
| Battery | Sungrow SBH250 |
| Mounting | Tin Roof Mount |
| Size | 14.96 kWp |
|---|---|
| Modules | Canadian Hiku6 440W |
| Inverter | Sigenergy 10SP |
| Battery | Sigenergy 32K |
| Mounting | Tin Roof-mount |
We welcome the opportunity to partner with government, industry and communities to shape a stronger, more sustainable energy future for the Territory.
Development Finance Manager
Mark Staunton has wide ranging finance experience in the electricity industry including m&a, development, generation, retailing and metering across Australia, Asia and the USA. His most recent role was as the Corporate Finance Manager for CleanCo where he was responsible for funding and capital structuring. Prior to CleanCo Mark worked for Shell Energy Australia, ERM Power and Suncorp. He holds a Bachelor of Actuarial Studies.
General Manager Development
Wayne Moulday is a seasoned mechanical engineer with over two decades of leadership in the power industry. He has directed major energy infrastructure projects across Australia and Asia, including coal, gas, solar, battery, and hydro developments. Wayne brings deep expertise in project development, technical due diligence, and strategic acquisitions, and has held executive roles spanning development, production, marketing, and sustainability.
General Manager Retail
Allan Duffell brings over 20 years of Risk and Compliance, and electricity retail experience to the Rimfire Group, including stints with SP Ausnet and Energy Australia and most recently as Compliance Manager with Lasseters Casino in Alice Springs.
Operations Manager
Scott McLaren brings more than 22 years experience in electrical contracting, renewable energy and EV Charging systems across Australia and the United Kingdom. With a strong blend of technical expertise, leadership, and process optimisation, Scott is focused on and has a proven track record in building high-performing teams and strengthening project delivery systems.
Sales Director
Mike Ricketts is a senior energy leader with deep experience across Australia’s wholesale and retail electricity markets. With experience across the residential, SME, and C&I sectors bringing strong market insight, strategic thinking, and practical commercial execution. Mike helps businesses navigate market complexity and build long-term, sustainable energy strategies. He has scaled high-performing teams nationally, strengthening commercial capability and embedding the structures required for sustainable growth.
Founder / Finance Manager
Maria has worked more than 10 years in accounting in both chartered accounting and corporate environments. Maria brings to Rimfire Group experience covering finance and management reporting, payroll and accounts payable/receivable in industries including utilities, tech startups and healthcare. Maria’s experience covering different industries and including startups, supports Rimfire Group’s diverse and fast-growing business.
Chief Financial Officer
Maria Walters brings over 15 years of experience in the Northern Territory’s energy industry and more than 20 years of finance and accounting experience. Formerly CFO at Territory Generation, she led major transitions toward cost efficiency and renewable energy. A Fellow of CPA Australia, Maria is recognised for her technical expertise, strategic insight, and leadership across finance and business services. She also serves on several boards, demonstrating her commitment to strong governance and industry progress.
Chief Operating Officer
Kim Howlett brings more than 23 years of power generation experience to Rimfire Group, most recently as the Regional Manager for the Northern Territory overseeing an engineering team for the design and commissioning of numerous power generation systems in the Northern Territory, including the development of Rimfire’s 10MW ac solar generation facility at Batchelor, NT and Rimfire’s 12.5 MW gas-fired power station at Hudson Creek.
Founder / Managing Director
Michael Allen brings more than 30 years of experience to Rimfire Group. In addition to establishing the electricity retail, project development and solar PV installation businesses of Rimfire Group, this includes as the former Executive General Manager Finance & CFO for a tier one electricity company operating in the National Electricity Market. Prior to this, Michael held a variety of senior positions representing developers and banks across energy, resources and industry based in Australia and Asia.
Advisory Board
Karen has over 37 years of experience in business advisory services across WA and the NT, where she’s lived since 1991. A former equity partner at Deloitte for more than 20 years, she led private advisory teams across NT, SA, and Tasmania, and served as Deloitte NT’s Office Managing Partner.
Karen currently holds several board roles, including Non-Executive Director and Chair of Risk and Audit Committees at Airport Development Group and Beetaloo Energy Australia, and Advisory Board Member at Rimfire Energy. She is also Chair of the NT Screen Industry Advisory Committee and President of the NT Council of the Australian Institute of Company Directors.
Her previous roles span government, energy, and cultural sectors. Karen is passionate about rural Australia and dedicated to building a sustainable future for the Northern Territory.
Advisory Board
Peter is a sales and marketing executive with over 30 years’ experience in the mining and metals sector. He is currently Vice President Sales & Marketing at ASM, an ASX listed critical minerals company. Peter was previously the Chief Commercial Officer at South 32 and held various senior roles at BHP. During his career, Peter has worked in various marketing roles in Japan, Australia, Russia, Cyprus and Switzerland, including for Rio Tinto and Rusal. He was a Director of the International Aluminium Institute and the International Nickel Institute
Relevant Qualifications and Memberships:
Advisory Board
Andy brings an extensive background in trade and investment and strong leadership in the technology, defence and regional economic development. With over 15 years working at State and Federal Government levels, Andy has in-depth experience in government relations, foreign affairs and trade both within Australia and abroad.
Prior to joining Rimfire Energy, Andy was the inaugural Investment Commissioner for the Northern Territory Government of Australia with responsibility for promotion and attraction of investment in the Territory and driving governments plan for a $40 billion economy by 2030.
Preceding this role, Andy was the Deputy Chief Executive of the Department of the Chief Minister and Cabinet and the Department of Trade, Business and Innovation in the Norther Territory of Australia. Over a period of 8 years in these two roles, he had responsibility for defence and national security, regional economic development, international engagement, trade and investment, workforce development and small business portfolios.
He has over 2 decades of executive leadership experience in the public and private sectors. Andy has tertiary qualifications in science and education and is an Executive Fellow of the Australia and New Zealand School of Government.
