Professor Bartholomew Nnaji, born on July 13, 1956, in Enugu State, is a Nigerian engineer, academic, entrepreneur, former minister, and the founder of Geometric Power Limited, Nigeria’s first and only indigenous integrated power company.
At 69 years old, he remains one of the most consequential figures in Nigeria’s energy conversation, a man who built a power plant from scratch in Aba, Abia State, when most Nigerians had given up on the idea that electricity could be solved from within. His story is not a comfortable one, it is a story of a man who returned from a distinguished American academic career to fix a broken system, and who is still fighting to do it decades later.
Barth Nnaji Profile
| Name | Barth Nnaji |
| Real Name | Professor Bartholomew Nnaji |
| Date of Birth | July 13, 1956 |
| State of Origin | Enugu State |
| Tribe | Igbo |
| Nationality | Nigerian |
| Occupation | Nigerian engineer and Politician |
| Religion | Christianity |
| Marital Status | Married |
| Net Worth | $50 million |
| Copied from | content101.com |
Educational Background
Barth Nnaji attended school in Enugu State before heading to the United States for his higher education. He obtained his undergraduate degree in Physics from St. John’s University in New York, graduating as the best overall student in his class in 1980.
He then earned a Master of Science and a PhD in Industrial and Systems Engineering from Virginia Polytechnic Institute and State University. He also received dual MSc and PhD degrees in physics from St. John’s University and completed a Post-Doctorate Certificate in Artificial Intelligence and Robotics from MIT, one of the most prestigious research institutions in the world.
Career
Barth Nnaji joined the faculty of Engineering at the University of Massachusetts Amherst in 1983, where he founded and directed the Automation and Robotics Laboratory and became a full Professor of Mechanical and Industrial Engineering in 1992. He later moved to the University of Pittsburgh as the ALCOA Foundation Distinguished Professor of Engineering in 1996, and also held a professorship in the Department of Mechanical and Industrial Engineering at the University of Pennsylvania.
In 1993, he took a leave of absence from the US and returned to Nigeria to serve as Federal Minister of Science and Technology under the military government of General Sani Abacha. In 2000, he founded Geometric Power Limited, Nigeria’s first indigenous-owned power development company, focused on solving the electricity crisis in Aba, Abia State, a city known as Nigeria’s Taiwan for its extraordinary concentration of local manufacturers who were being strangled by power failure. In 2001, Geometric Power led a team of Nigerian engineers to become the first indigenous group to build a private power station in Nigeria, bringing emergency power to Abuja.
In 2010, President Goodluck Jonathan appointed him Special Adviser on Power and Chairman of the Presidential Task Force on Power. He became Nigeria’s Minister of Power in July 2011, serving until August 2012, during which period he drove Nigeria’s power generation to a record 5,000 megawatts and laid the foundation for the eventual privatisation of the power sector.
After leaving office, he returned to Geometric Power and spent more than a decade fighting regulatory, financial, and political obstacles to deliver the Aba Integrated Power Project, a 188-megawatt facility described as Nigeria’s only truly integrated private power project.
In May 2025, former President Obasanjo personally commissioned new substations at the Ogbor Hills facility in Aba, publicly crediting Nnaji with delivering something successive governments had failed to do. In March 2026, he joined the African Democratic Congress in Enugu, making a late-career political pivot that signalled his continued ambition to shape Nigeria’s future beyond the boardroom. He is also Pro-Chancellor and Chairman of the Governing Council of Bells University of Technology, Chairman of the NLNG Prize for Science Committee, and recipient of four national honours.
Controversies
Barth Nnaji’s most persistent public controversy is the long and painful delay in delivering the Aba power project. What was conceived in the early 2000s spent more than two decades in various stages of legal disputes, regulatory battles, and funding standoffs, during which Aba’s manufacturers continued to suffer catastrophic losses from epileptic power supply. Critics, particularly those in the Aba business community, spent years questioning whether the project would ever be completed, with some accusing Geometric Power of holding a licence for a ring-fenced distribution area while leaving manufacturers without reliable power. Nnaji consistently pushed back, pointing to the Yar’Adua administration’s suspension of the National Integrated Power Project in 2007 and the broader dysfunction of Nigeria’s power sector policy as the primary obstacles.
His most current controversy is his climate change stance. At the 2025 Bullion Lecture in Lagos, he publicly criticised what he called the “tree huggers” of the world and accused developed nations of hypocrisy in climate policy, arguing that Nigeria should prioritise energy security and economic growth over climate idealism. The remarks generated sharp reactions from climate advocates and development economists who felt his framing dismissed the very real risks that climate change poses to Nigeria and Africa. Nnaji held his ground, arguing that developing nations cannot be expected to sacrifice growth on the altar of a climate agenda shaped largely by countries that industrialised on coal.
Barth Nnaji Social Media
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https://www.instagram.com/profbartnnaji?igsh=MW1saXlvYzRwY3VzNA==
Personal Life
Professor Bartholomew Nnaji was born on July 13, 1956, and hails from Umuode in Nkanu East Local Government Area of Enugu State. He chairs his community’s land committee, a role he takes with the same seriousness as his academic and business positions, and visits the rural community at least every two weeks. Professor Bartholomew Nnaji is married to Agatha Nnaji (née Agatha Egwu). The couple is the co-founders of Geometric Power Company, Nigeria’s first indigenous integrated power utility, and share two children.
He is deeply rooted in his Igbo heritage and has described community service as central to who he is. He established the Nnaji Foundation, through which he provides scholarships and supports displaced communities. In 2016, he received Apostolic Blessings from Pope Benedict in recognition of his humanitarian work.
Barth Nnaji Net Worth
Barth Nnaji’s net worth is estimated to be around $50 million.