Board of Directors


profile of samuel brew butler




Samuel Nana Brew-Butler is a distinguished Ghanaian businessman and entrepreneur and the original founder of Cenpower. He has held many senior management roles in his long and successful career, most notably Group Commercial Manager of Ghana Industrial Holding Corporation from 1981-1985. He then set up Reltub Company Limited, a business and project development group, of which he is Chairman and CEO. He is also a shareholder and Resident Director of Arab Contractors, an international construction company, and a Director of Consolidated Power Projects Ghana, a subsidiary of Consolidated Power Projects South Africa. He has a first degree in Business Studies from the University of North London (UK) and obtained a Post Graduate Diploma from the University of Kent at Canterbury (UK).


profile oliver andrews



Oliver Andrews
Non-Executive Director

Oliver Andrews is an Executive Director and Chief Investment Officer at AFC where he leads the deal origination, execution and management of the investment portfolio. He previously headed up the origination and coverage division, which executed over US$1 billion of high-impact developmental projects across Africa. An entrepreneurial engineer and transport economist, Oliver has over 30 years’ experience across the major infrastructure sectors and 20 years as an infrastructure project financier and strategic adviser. He holds an MBA from the University of Wales, is an Electrical and Electronic Engineer and Chartered Marketer (UK), and also a member of the Chartered Institute of Transport and Logistics (UK).


profile Taiwo Adeniji




Taiwo Adeniji
Non-Executive Director

Taiwo Adeniji currently serves as a Director and Head of Financial Institutions & Advisory Services at AFC. In this role for the last four years, Taiwo has led the provision of financial advisory and structuring services for AFC’s infrastructure investments, as well as providing advisory services regarding infrastructure policies and programmes to public sector agencies. He led the teams that advised the Federal Ministry of Finance of Nigeria on the financing of critical infrastructure projects and the Central Bank of Nigeria (‘CBN’) on its National Infrastructure Financing Policy. He currently leads the team that serves as the Technical Adviser to the CBN on the implementation of the US$2billion Power and Aviation Intervention Fund. Taiwo has deep knowledge and extensive experience with infrastructure policy issues, as well as the analysis, evaluation and financing of infrastructure projects. During a 13-year tenure (1994 – 2007) at the African Development Bank, Taiwo worked on infrastructure policy formulation and managed the financing of infrastructure investments in some of Africa’s largest economies. Taiwo also supervises the AFC’s Trade Finance desk, from which trade finance transactions in excess of US$1billion have been executed over the last six years. Taiwo has an academic background in Economics and Finance.


profile theo sackey




Theo Sackey
Chief Executive Officer

Theo Sackey is a Senior Vice President at AFC, responsible for Project Development. An electrical engineer by profession, he holds a Masters Degree in Electrical Engineering from the Belarus Polytechnic Institute, Minsk, Belarus, and a Masters Degree in Public Policy and Administration from Harvard University, Cambridge, USA. He has over 20 years’ experience in power system planning and operations, as well as the development of public and private sector energy infrastructure projects. He has extensive experience in the development of key energy and power projects in West Africa, including the West African Gas Pipeline (WAGP) and the West African Power Pool (WAPP).


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Ato Gyasi
Non-Executive Director


Ato is Senior Director, Investments Group at the Africa Finance Corporation (AFC), a multilateral specialist infrastructure financing institution headquartered in Lagos, Nigeria. Prior to this, Ato was Co-Head of Investment Banking at Rand Merchant Bank Nigeria. His experience spans many African countries including South Africa, Nigeria, Ghana, Mozambique, Tanzania, Zambia and Angola. Ato has been involved in various award-winning transactions such as Azura IPP (Nigeria), Cenpower IPP (Ghana), Eskom Kusile Power Plant (South Africa), Angola Domestic Submarine Cable (Angola), Tema Port Expansion (Ghana), Tongaat Hulett Sugar (Mozambique) and the Lekki -Epe Expressway (Nigeria).


profile nana eshun



Nana Eshun
Non-Executive Director

Nana Eshun is a finance and infrastructure lawyer at AFC and leads on debt and equity financing transactions in various sectors including power, oil and gas, telecommunications, ports and heavy industry. Prior to joining AFC in 2008, she worked for the African Development Bank where she led on the legal aspects of financing a number of projects, including power infrastructure. Prior to this, she represented the Ministry of Finance/the Government of Ghana on the West African Gas Pipeline Project.





Ken Kageyama
Non-Executive Director

Ken Kageyama is presently the General Manager of the IPP and IWPP Department No.2 of Sumitomo Corporation. He joined Sumitomo Corporation in April 1991 and has since participated in diverse projects in the IPP and IWPP industry. He was formerly the Team leader for the IPP Business Development Dept., as well as for the Strategic Planning Group under the Global Power Infrastructure Business Division in Tokyo. Additionally he served as the President of Perennial Power Holdings, Inc. which is a wholly owned subsidiary of Sumitomo Corporation and develop IPP projects in the United States of America. He holds a Bachelor's. degree in Economics from the Osaka University in Japan.





David Barlow
Non-Executive Director

David Barlow is the General Manager of the Abu Dhabi branch of Summit Global Power (a wholly-owned subsidiary of Sumitomo Corporation), which is responsible for development and asset management of IPPs and IWPPs across Middle East, Africa, Europe, CIS and near Asia. He has over 16 years of managerial experience in the development of worldwide power and water projects. Most recently he had a lead development role on the Az Zour North IWPP in Kuwait. He is a currently a Board Director of three projects in the Middle East, representing the interests of Sumitomo. He started his career with the UK’s Central Electricity Generating Board, after completing both his BSc and PhD degrees at Leeds University. He also holds a Diploma in Management Studies from the University of Westminster (UK).





Koji Endo
Non-Executive Director

Koji Endo is presently the General Manager of the IPP and IWPP Department No.2 of Sumitomo Corporation. He joined Sumitomo Corporation in April 1994 and has since participated in diverse projects in the Power industry acting as lead developer of IPP/IWPP as well as prime EPC contractor.

He was formerly the Divisional Manager of Infrastructure and Transportation Business Division in Sumitomo Corporation Africa (Johannesburg), and in addition he had served as the President Director of PT. Central Java Power (Indonesia) and PT. Summit Niaga (Indonesia), both of which are wholly owned subsidiaries of Sumitomo Corporation. He holds a Bachelor�s Degree in Economics from the Waseda University in Japan.





Kenichi Okemoto
Chief Financial Officer and Director

Kenichi Okemoto is Chief Financial Officer and a Director of Cenpower Generation. He is seconded from Sumitomo Corporation and has various experiences in the IPP/IWPP industry, in both asset management and project development. He was formally a Board Director / Managing Committee member of power project companies in Western Australia, representing Sumitomo’s interests. Prior to joining Sumitomo in 2009, he worked in the financial industry for over 13 years, mainly in structured lending, sales and advisory. His previous roles include a Commodity and Structured Trade Finance Manager at the Bank of Tokyo-Mitsubishi UFJ in London and an Emerging Markets Structuring Director at Credit Suisse Securities (Japan). He holds an MBA from Georgetown University and a BA in Economics from the University of Tokyo. He also has a number of professional financial industry qualifications such as Certified International Investment Analyst.





Kweku Awotwi
Non-Executive Director

Kweku Awotwi is currently the principal of the Triton Group, a food processing and distribution company. Between 2003 and 2004, he was the Acting Chief Executive of the Volta River Authority (VRA). Other high profile roles in the past include the Acting President of the Ghana Chamber of Mines and the Managing Director of Strategic Planning and New Business Development at Ashanti Goldfields (AGC). Before joining AGC, he was Manager of Business Planning and Analysis for Kaiser Aluminium & Chemical Corporation in the USA where he worked for eight years. He trained as an electrical engineer and has a BSc degree from Yale University and an MBA from Stanford’s Graduate School of Business.





Dr. Jimmy Heymann
Non-Executive Director

One of the founders of Cenpower, Dr Heymann is a medical practitioner. After acquiring a lot of working experience in Ghana and Nigeria, he established a successful medical practice in Ghana in 1989. He has served on the board of Arab Contractors (Ghana). For a year (2005 -2006), he was an adviser to the then minister of Science, Technology and Environment. He also served as Ghana's High Commissioner to Republic of South Africa (2006-2009).


profile vuyo ntoi




Vuyo Ntoi
Non-Executive Director

Vuyo Ntoi is AIIM’s Regional Director for Southern and Central Africa. Here he has been involved in fund management and advice for more than a decade. His expertise spans the whole breadth of infrastructure investment, including transport (roads, airports, sea ports and rail), energy (power, renewables and pipelines) and telecommunications. He has been involved in a number of landmark transactions in Africa, including a ground breaking PPP transaction in Nigeria. Vuyo is currently a director of Trans African Concessions (Pty) Ltd, Lekki Concession Company Ltd and Umoya Energy (Pty) Ltd.


profile Taiwo Adeniji




Sean MacDonald
Non-Executive Director

Sean joined AIIM in 2013 with a focus on asset management. Sean helps guide AIIM's portfolio companies through project execution with a focus on implementing the investment thesis to drive business efficiencies and enhance value for our investors. Sean represents the AIIM funds as a director on the Boards of the Bakwena Platinum Corridor Concessionaire, Trans African Concessions and N3 Toll Concession. Prior to joining AIIM, Sean spent almost 10 years with the Macquarie infrastructure funds management team, predominantly in the transport sector. During that time he worked on a number of large-scale transactions for Macquarie's listed toll road fund ranging from green-field bids, acquisitions, disposals and refinancings.

In addition, he has considerable asset management experience having represented Macquarie's interest as director on several portfolio businesses in Europe including Autoroutes Paris-Rhine-Rhone in France, Lusoponte in Portugal and M6Toll Road in the UK. The role also involved internal fund aspects such as asset valuations, internal reporting and investor relations. Earlier in his career Sean worked for the investment division of a leading international contractor on a range of PPP projects in the health, accommodation and transport sectors. Sean holds a B.Sc in Civil Engineering and an MBA.





Elizabeth Jokè Taylor
Director, Legal & Corporate Affairs
(Company Secretary)

Ms. Elizabeth currently oversees the management and supervision of the legal, regulatory, administrative, logistics, human resources and corporate services including Board secretarial duties of the Company as well as ensuring compliance with regulations and statutory requirements. She holds a Masters degree in Law (LLM Commercial & Corporate Law) from the University of London. As a qualified lawyer, she has over 20 years’ experience in both private and public sector working with reputable legal firms and government institutions. She has extensive experience in various areas of law, and has been involved as a lead solicitor in various UK government projects. She is also a member of various professional bodies including the Chartered Institute of Arbitrators, the Society of Women Solicitors and a member of the Law Society of England & Wales.