Engr. Lamu Audu Managing Director/CEO
Engr. Lamu Audu obtained his B.ENG Mechanical from the University of Mai-duguri. Prior to that, he obtained an Ordinary National Diploma and Higher National Diploma in Mechanical Engineering from Ramat College of Tech-nology Maiduguri and Kaduna Polytechnic respectively.
Engr. Lamu started his career with Borno State Ministry of Works and Housing in 1986 after completing his One-year mandatory National Youth Service Corps with WRECA in Kano. He worked with Borno State MOW&H as Principal Mechanical Engineer till when he moved to National Electric Power Authority (NEPA) as Manager (Mechanical) in April 1996. He attended many professional courses and training workshops, which included NEPA pupil Engineer/Technologist Development programme, Supervised Pupilage programme at Shiroro Hydro Power Station, Supervised Pupilage Programme at Lagos Thermal Power Station, Egbin, and Management Development Training programme by Accenture.
In June 2002, he was promoted to Senior Manager (Mechanical) at Kainji Hy-dro Power Station. Engr. Lamu was elevated to the position of Principal Man-ager (Turbine) in August 2008, a position he held for a period of just a little above one year before he was transferred to Jebba Hydro Electric PLC to take on the position of Assistant General Manager (Maintenance) in October 2009. In August 2011, Engr. Lamu was appointed MD/CEO of Jebba Hydro Electric PLC, a position he held till the completion of privatizing the Electricity sector.
The Board of Directors of Mainstream Energy Solutions Ltd, the succes-sor company that acquired assets of Kainji and Jebba Hydro Electric PLC ap-pointed him as the MD/CEO of Mainstream Energy Solutions Ltd in October 2013. A position he holds till date.Engr. Lamu holds various Professional Qualifications such as:
Fellow of the Nigeria Society of Engineers (FNSE)
Fellow of the International Hydro Association (FIHA))
Member, Council for the Regulation of Engineer in Nigeria (COREN)
Member, Nigerian Institute of Engineering Management (NIEM)
Member, Nigerian Institute of Mechanical Engineers (NIME)
Member, World Energy Council (WEC)
Member, Financial Reporting Council of Nigeria (FRCN).
In the course of his professional career, he attended a number of trainings and capacity building programme. Some of them include;
Course on Power Plant Management in Accra, Ghana (June 2009)
Course on Theory and Application on Incentive regulation (May 2011).
Maintenance Training on Vibration and Balancing of large Composite Turbine and Compressor Shaft.
Course in AVIRA Program by INSEAD Business School, Singapore (September 2014)
High Performance Leadership Programme, Oxford (November 2016)
To honor his achievements, he was awarded the following;
Fellow, Institute for Government Research Leadership Technology
Fellow Institute of Credit Administration
Doctor of Science (D.Sc.) Honoris Causa from Common Wealth University.
Engr. Lamu Audu
Outgoing Managing Director/ CEO
Siraj Abdullahi Executive Director
Siraj Abdullahi studied Law at the University of Sokoto. He proceeded to the Nigeria Law School and was called to the Nigeria Bar in 1987. Siraj also holds a Postgraduate Diploma in Management Sciences and Masters Degree in Business Administration from Bayero University in Kano.Siraj started a career in Banking at Continental Merchant Bank Plc in 1989. He attended many professional courses and Training workshops in credit analysis, Treasury management and Corporate Finance.
He moved to Broad Bank of Nigeria as an Assistant Manager, worked for 2 years in the Credit and Marketing Department and was the pioneer Branch Manager of one of the new branches of the Bank opened in Kano during that period.He moved to Guaranty Trust Bank Plc in 1997. A well trained Banker and experienced credit analyst Siraj worked in the Banking Industry up to 1999 when he was appointed the Special Assistant to the Honorable Minister of Commerce.
He worked with the Minister of Commerce traveling extensively with the Minister during those years attending International meetings, seminars and conferences. He represented Nigeria at several Bilateral and Multilateral trade negotiations.In September 2001 Siraj was appointed Deputy Director in the Corporate Affairs Commission of Nigeria. Together with a New Management Team at the CAC worked tirelessly for the rebirth of a more efficient and customer friendly CAC and the new online company registration for the Commission.
He returned to the Banking Industry and to Guaranty Trust Bank as Divisional Head North West in April 2004. He was responsible for Marketing and General administration in his division. He became General Manager and member of Executive Management in 2008 a position he held until July 2013 when he voluntarily resigned to take up his current job as Executive Director in Mainstream Energy Solutions Ltd, operators of Kainji and Jebba Hydro power plants and strong players in the emerging power sector in Nigeria.
Siraj Abdullahi
Managing Director/CEO Designate
Atinuke Taiwo Executive Director
Atinuke Taiwo is a Director and the General Counsel providing oversight on Legal, Compliance and Regulatory matters for Mainstream Energy Solutions Limited. Atinuke has over 28 years working experience and extensive expertise in Legal, Management and Operational matters and has dealt extensively in corporate law, securities law, power sector reform, corporate/project/infrastructure financing, compliance, mergers and acquisition, including managing regulatory reporting and audit, driving policies and procedures, and delivering training.
Atinuke has worked in various companies including Bear Stearns Asset Management (USA), JPMorgan (USA), GE Commercial (USA) and FMDQ OTC Plc (Nigeria). She holds a Masters of Law from Northwestern University (Chicago), and is a member of the Nigerian Bar Association and International Bar Association.
Atinuke Taiwo
Executive Director, Legal
Usman M. Umar Executive Director
We are thrilled to announce that, following the 47th Board Meeting of Mainstream Energy Solutions Limited, Mr. Usman Muhammad Umar has officially assumed the role of Executive Director, Corporate Services.Mr. Umar, in his previous capacity as General Manager, Human Resources, played a pivotal role in driving organizational change and establishing a performance culture that consistently delivered remarkable year-on-year results.
Under his leadership, the Employee Value Proposition at MESL has become unparalleled, and he has been a strong advocate for employee welfare.Usman's influence extends beyond the company's borders, as he has been instrumental in building talent and forging alliances within the sector and the West African sub-region. Notably, he led the establishment of an academy dedicated to becoming a center of excellence in hydro power and renewable energy.His proactive approach to identifying opportunities for organizational growth is evident in his track record. Notably, as part of the leadership team that successfully negotiated and acquired the Yola Electricity Distribution Company (YEDC) and secured bids for the Zungeru Hydro Power Plant (700 MW) and Kashimbilla Hydro Power Plant (40MW).
Usman's commitment to corporate social responsibility is noteworthy, as he has served as an executive sponsor for impactful community projects through the Mainstream Foundation. These initiatives include electrification projects, hospitals, and schools in host communities.Throughout his career, Usman has consistently demonstrated a drive for success, exceptional leadership skills, and a proven ability to deliver outstanding results across diverse sectors, leaving behind a legacy of excellence.Join us in extending heartfelt congratulations to Mr. Usman Umar on his well-deserved promotion to Executive Director. As he steps into this new role, we wish him continued success, strength, and vigor. Here's to a prosperous journey ahead! Congratulations!
Usman Muhammad Umar
Executive Director, Corporate Services
Cleber Romao Executive Director, Technical
Cleber Romao is an accomplished Electromechanical Engineer and hydropower expert with over 25 years of global experience delivering complex energy and infrastructure projects across Africa, Europe, Asia, and the Americas. As Chief Technical Officer of Mainstream Energy Solutions Limited, he provides strategic technical leadership across the hydropower lifecycle from pre-feasibility and design through construction, commissioning, operations, rehabilitation, and modernization.
As a PMI-certified Program Management Professional (PgMP)®️, he has led large-scale rehabilitation and new projects exceeding 1,000 MW, directing multidisciplinary teams and overseeing high-value assets. His expertise spans electromechanical systems, hydraulic structures, control and protection systems, auxiliary systems, grid integration and more.
He is internationally recognized for integrating engineering dexterity with robust program, risk, quality, and HSE management. He has a proven track record in contract administration, claims management, and insurance optimization, consistently delivering projects on time, within scope, and aligned with client and stakeholder expectations.
With extensive experience in both utility operations and international consulting, he brings a unique blend of hands-on technical depth and executive-level strategic oversight, supporting sustainable asset performance, operational reliability, and long-term value creation for energy organizations.
Cleber Romao
Executive Director, Technical
Ibrahim Dan Shuaib Executive Director, Finance
Mr. Ibrahim holds a Master of Business Administration (MBA) from Warwick Business School, United Kingdom.He is an Honorary Senior Member (HCIB) of the Chartered Institute of Bankers of Nigeria (CIBN), Fellow (FICA) Institute of Credit Administration (ICA), Fellow (FIMS) Institute of Management Specialist UK (FIMS), Member, of the Association of Certified Anti Money Laundering Specialist (ACA) Member, Chartered Management Institute (CMI), Member, Professional Risk Managers International Association (PRIMA) and Affiliate Member, Chartered Institute of Marketing (CIM) UK.
He has attended various professional and leadership programs from accredited organizations such as the IMD in Lausanne Switzerland, the Chevening Leadership Programme at Lagos Business School, and the Citibank School of Banking in New York, USA.
