The Company Directors and staff currently serve have previously served on several committees and evaluation panels of the Government and professional bodies related to the energy sector.
Currently, we operate with a full-time staff of four senior consultants, three project engineers and two support staff attending to technical and secretarial functions. Our peripheral staff comprises civil, electrical, petroleum, production and mechanical engineers, economists, financial specialist and system analysts, environment specialists and sociologists possessing varying expertise, who are called upon to perform specific tasks. Our external staff includes a number of specialists in power system planning, transmission development, renewable energy development and financing.
Currently, we operate with a full-time staff of four senior consultants, three project engineers and two support staff attending to technical and secretarial functions. Our peripheral staff comprises civil, electrical, petroleum, production and mechanical engineers, economists, financial specialist and system analysts, environment specialists and sociologists possessing varying expertise, who are called upon to perform specific tasks. Our external staff includes a number of specialists in power system planning, transmission development, renewable energy development and financing.
Company Founders
Dr. Tilak Siyambalapitiya
BSc (Eng). Hons., PhD
Carries 40 years of experience in the energy sector of Sri Lanka, in south and southeast Asia, the Middle East and east Africa. President, Sri Lanka Energy Managers Association (2004-6). Worked in Energy Task Forces, Ministry of Power and Energy Sri Lanka (1982-84). Chief Engineer (Generation Planning) Ceylon Electricity Board (1989-94). Principal Engineer (Load Forecasting and Generation Planning) at Saudi Consolidated Electric Company (1994-1998).
He is an electric utility planner, and his work experience includes planning power generation systems and tariff determination for embedded generation. he continues to be engaged in studies on a wide range of issues related to electricity pricing, grid interconnection and regulation of small to medium-scale grid-connected power plants. Since 1999, he has conducted numerous consulting studies for project developers, national and international banks, international financial institutions, and for electric utilities. Has served in various committees of the Government of Sri Lanka and the Ministry of Power and Energy, including the national energy policy committee (2004-2008), a committee to review power sector reforms (2005), working group on renewable energy (2005-8), renewable energy policy committee (2013), and the national energy policy review committee (2018). He teaches energy systems, renewable energy and power systems to undergraduates and energy efficiency, demand management and conservation to Masters Degree students. He supervises several undergraduate and higher degree student research projects at any given time. He was a contributing author and the editor of the Sri Lanka Energy Audit Manual 1999, 2000, and 2013. He was the editor of SLEMA Journal until 2022 and is currently the editorial advisor to Sri Lanka Energy Journal.
Resigned with effect from 24 September 2024.
He is an electric utility planner, and his work experience includes planning power generation systems and tariff determination for embedded generation. he continues to be engaged in studies on a wide range of issues related to electricity pricing, grid interconnection and regulation of small to medium-scale grid-connected power plants. Since 1999, he has conducted numerous consulting studies for project developers, national and international banks, international financial institutions, and for electric utilities. Has served in various committees of the Government of Sri Lanka and the Ministry of Power and Energy, including the national energy policy committee (2004-2008), a committee to review power sector reforms (2005), working group on renewable energy (2005-8), renewable energy policy committee (2013), and the national energy policy review committee (2018). He teaches energy systems, renewable energy and power systems to undergraduates and energy efficiency, demand management and conservation to Masters Degree students. He supervises several undergraduate and higher degree student research projects at any given time. He was a contributing author and the editor of the Sri Lanka Energy Audit Manual 1999, 2000, and 2013. He was the editor of SLEMA Journal until 2022 and is currently the editorial advisor to Sri Lanka Energy Journal.
Resigned with effect from 24 September 2024.
DIRECTOR
Mr. Sunith Fernando
MSc.
With 40 years of experience in renewable energy development in Sri Lankan state, international and consulting agencies, Mr Fernando’s expertise in Mechanical Engineering is unique for Sri Lanka. He is highly experienced in wind, hydro and biomass resource assessment, power plant design, and has hands-on experience in a range of renewable energy project design and project management. His initial experience in the energy sector was in the implementation of the wind-based water pumping project for the Water Resources Board in Sri Lanka. He subsequently developed the wind resource assessment for the southern coastal belt, and went on to be the local consultant for the country-wide wind resource assessment study along with NREL of USA. He is equally experienced in small hydro resources assessment and in conceptual design. He has been a consultant to the World Bank, UNDP and ADB from time to time, and works full-time at RMA. He is the team leader to RMAs team of consultants to the first commercial wind power plant commissioned in Puttalam, Sri Lanka in May 2010.
Our Key Staff
MANAGING DIRECTOR
Dr. Amila Wickramasinghe
BSc (Eng) Hons., MEcon., PhD
With more than twenty years of experience in RMA, Dr Wickramasinghe is significantly involved in energy sector studies and projects, both internationally and locally. Bringing in a unique combination of energy economics and electrical engineering expertise, Dr Wickramasinghe works full-time at RMA. His experience ranges from power system analysis, appraisal of energy sector projects, renewable energy project development, economic and financial evaluation, and ex-post evaluation of projects. Over the last 15 years, through RMA, Dr Wickramasinghe has been offering his services to multilateral development agencies such as the Asian Development Bank, the World Bank, Japan International Cooperation Agency, and the Asian Infrastructure Investment Bank in conducting due diligence studies on power sector investments.
SENIOR PROJECT ENGINEER
Mr. Mahesh Rathnayake
BSc (Eng). Hons., MSc
Mr. Mahesh Rathnayake graduated from University of Moratuwa, Sri Lanka in year 2015 and joined RMA in July 2015. He has worked in several projects related to energy efficiency, rural electrification and hybrid power generation. With more than six years of experience, his main research interests are distribution system planning, economic optimization, geographical information systems and renewable energy development. Currenlty, he is on study leave reading for his PhD at University of Manitoba, Canada.
LEAD POWER SYSTEMS ENGINEER
Mr. Bhasara Sirisinghe
BSc (Eng). Hons., MSc
Mr. Bhasara Sirisinghe joined RMA as a Project Engineer in 2018. After graduating from the University of Moratuwa, he obtained his Master of Science in Advanced Electrical Power Engineering from Newcastle University, UK, in 2018. With more than five years of experience, he has been significantly involved in renewable energy development projects; including solar PV and wind energy, technical due diligence of power sector projects funded by multilateral donor agencies, load flow & reliability assessments of transmission and distribution networks, preparing project completion reports, and efficiency improvement assessment of electrical applications of energy audits.
MANAGER PROJECTS
Ms. Thirasara Gunaruwan
BSc (Eng) Hons, AAL
Ms. Thirasara Gunaruwan joined RMA as a Project Engineer in January 2024. She graduated from the University of Moratuwa, Sri Lanka, in 2018 and brought with her nearly five years of experience in project management and procurement in the electrical engineering sector. Additionally, she has been enrolled as an Attorney-at-Law in the Supreme Court of Sri Lanka since July 2023. At RMA, her work primarily involves analyzing the contractual and regulatory compliance of electricity sector projects. She is also engaged in sector assessments and technical due diligence studies.
SENIOR PROJECT ENGINEER
Mr. Birannaa Jeyakumar
BSc (Eng). Hons.
Mr. Birannaa Jeyakumar graduated from the University of Moratuwa, Sri Lanka, in 2021 and joined RMA as a Project Engineer in August 2021. With over three years of experience, he excels in preparing project completion reports, developing economic and financial models for power sector projects, and conducting sector assessment studies funded by multilateral donor agencies. Additionally, he has been extensively involved in tariff calculations, regional tariff comparisons, and technical due diligence on electricity sector projects.
He is currently pursuing a Master’s degree in Economics (MEcon) at the University of Colombo.
He is currently pursuing a Master’s degree in Economics (MEcon) at the University of Colombo.
SENIOR PROJECT ENGINEER
Mr. Sulekha Abeyrathna
BSc (Eng). Hons.
Mr. Sulekha Abeyrathna graduated from the University of Moratuwa, Sri Lanka, in 2021, and shortly thereafter began his career as a Project Engineer at RMA. With over three years of experience, he has played a key role in renewable energy development projects and conducted comprehensive technical, financial, and economic evaluations for power sector initiatives. His expertise extends to developing load forecasts, creating generation plans, conducting energy audits, completing sector assessment studies, and preparing project completion reports. His primary research interests include power systems engineering, power electronics, and renewable energy. Currently, he is pursuing a Master’s degree in Electrical Engineering at the University of Moratuwa.
SENIOR PROJECT ENGINEER
Mr. Tharaka Siyambalapitiya
BSc (Eng). Hons., MSc
Mr. Tharaka Siyambalapitiya graduated from the University of Moratuwa in 2021. He spent more than two years in academia while actively involved in energy auditing, sustainability-related projects, and electrical design.
In 2024, he obtained an MSc in Acoustical and Vibration Engineering from the University of Southampton, UK. Additionally, he pursued studies in Geographical Information Systems at the University of Peradeniya.
He joined RMA in 2025 as a Senior Project Engineer, primarily focusing on policy analysis and development in the energy sector, project completion, and economic evaluations. His key areas of interest include sustainable development, acoustical design, noise and vibration control of electrical machines, and project management.
In 2024, he obtained an MSc in Acoustical and Vibration Engineering from the University of Southampton, UK. Additionally, he pursued studies in Geographical Information Systems at the University of Peradeniya.
He joined RMA in 2025 as a Senior Project Engineer, primarily focusing on policy analysis and development in the energy sector, project completion, and economic evaluations. His key areas of interest include sustainable development, acoustical design, noise and vibration control of electrical machines, and project management.
PROJECT ENGINEER
Ms. Jathushini Alfred
BET (Hons)
Ms. Jathushini Alfred graduated from the University of Jaffna, Sri Lanka, in 2024 and joined RMA as a Project Engineer immediately after graduation. Her work primarily focuses on the technical aspects of electrical installations, strongly emphasising renewable energy projects, including wind and solar. She has been actively involved in energy assessments and provides technical approvals for installations. Additionally, she specializes in thermal analysis, cable sizing, and troubleshooting electrical systems. She also contributes to energy audits, due diligence studies, and technical evaluations within the energy sector, ensuring compliance with industry standards and best practices.
PROJECT ENGINEER
Mr. Dinesh Vimalanathan
BET (Hons)
Mr. Dinesh Vimalanathan, a 2024 graduate of the University of Jaffna, joined RMA Energy the same year as a Project Engineer, contributing to the company’s renewable energy initiatives. His work includes solar and wind energy project execution, renewable energy dashboard development, energy audits, lighting design, and low voltage installations. He is also involved in due diligence studies, cable sizing, and thermal analysis to improve system efficiency. With a detail-oriented and practical approach, he supports the development of sustainable energy solutions while ensuring technical accuracy and compliance with industry standards.
MANAGER FINANCE AND ADMIN
Mrs. Pinky Fernando
Mrs. Fernando joined RMA in 1999 as the Manager Finance and Administration.
SECRETARY
Mrs. Buddhika Rukshanthi
Mrs Rukshanthi joined RMA in 2002 as a Secretary.
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