As Nigeria continues to grapple with the challenges of energy inefficiency, rising operational costs, and inadequate infrastructure in its built environment, voices like Akpevwe Theophilus Erhieyovwe are becoming increasingly vital. A Nigerian-born physicist and geoscientist, Erhieyovwe holds degrees from Rivers State University, the University of Port Harcourt, and the Illinois Institute of Technology, Chicago. His professional journey has taken him through key roles at Chevron Nigeria, IHS Towers, and currently, Baumann Consulting in the United States, where he serves as a Commissioning and Energy Engineer.

With a career marked by excellence and innovation—evidenced by accolades such as the Chevron Human Energy Award, Shell Scholarship, SPE Innovation Award, and the NAPE Award for Geological Excellence—Erhieyovwe is at the forefront of advocating for smarter, safer, and more sustainable building systems.

In this interview, he shares his insights on the urgency of implementing MEP systems testing, the hidden inefficiencies draining Nigeria’s buildings, and how a structured commissioning education and certification program can revolutionise the sector. He also outlines a vision for diaspora engineers to shape national building policies and practices through collaboration, innovation, and capacity building.

What would be your top priority if you could rewrite Nigeria’s building regulations?
If I could change Nigeria’s building rules, my main goal would be to require testing of mechanical, electrical, and plumbing (MEP) systems for all major projects from design to occupancy. Many buildings finish construction without checking these important systems, which can lead to wasted energy, discomfort, safety hazards, and building problems. I would create a ‘National Building Systems Commissioning and Performance Act’ that mandates third-party testing, certified commissioning agents, and confirmed as-built documentation before the building is handed over. This would enhance building safety, lower operational costs, and ensure systems work as intended. It would also help develop local skills and increase trust from investors in Nigeria’s construction and infrastructure sectors.

What are the most common hidden inefficiencies in Nigerian building projects, and how can they be detected cost-effectively?
Many buildings in Nigeria have problems that waste energy and cause frequent failures. Common issues include overloaded air conditioners, leaky windows and walls, old lighting systems, and running water pumps longer than necessary. Most buildings also lack Building Automation Systems (BAS), proper natural ventilation, and good teamwork between design and construction teams.
You can find these problems using simple tools like thermal cameras, smart meters, blower door tests, and mobile apps. Solutions include using the right size equipment, sealing air leaks, checking system controls, and testing everything before handover. Training local engineers in Functional Performance Testing (FPT) will help improve building quality, save energy, and extend the lifespan of buildings.

How would you design a pilot program to demonstrate lower energy costs in a commercial building using commissioning and renewable technologies?
To cut energy costs in a commercial building in Nigeria, I would launch a 6-month pilot program focused on improving cooling systems. This program would test and fix the building’s air conditioning, seal leaks in walls and windows, and adjust thermostats. I would use smart tools like timers and motion sensors to avoid wasting energy. A solar power system with battery backup would help reduce dependence on the grid or generators. Energy meters would track how much cooling energy we save. We would compare the results to past usage to show cost savings. Local engineers would receive training in system testing and energy-saving practices.

What steps can be taken in the next 12 months to develop commissioning education and certification in Nigeria?
Over the next 12 months, Nigeria can establish a robust education and certification system for commissioning. First, a task force should be formed, involving COREN, NSE, and ASHRAE Nigeria. Following this, a national curriculum based on the ASHRAE Guideline 0 should be developed for universities and technical schools. Next, pilot training workshops and certification programs for Commissioning Technicians and Agents should be implemented. Additionally, hands-on demonstration labs for system testing need to be set up. Awareness campaigns should be conducted to reach builders and developers. Finally, government or donor support will be essential to expand the program. These steps will help train professionals to ensure that buildings are efficient, safe, and thoroughly tested.

How can diaspora engineers contribute to shaping policy and practice in Nigeria, and how can others support their efforts?
Diaspora engineers can help improve Nigeria’s building industry by sharing international best practices, providing training, and advising on important standards like commissioning and energy codes. These engineers can also collaborate with local institutions to create practical guidelines and run pilot projects that demonstrate efficient systems in Nigeria.

To support this effort, local agencies, universities, and professional bodies should create ways for collaboration and make it easier for everyone to engage in joint projects. The government and donors can assist by providing funding, recognition, and clear methods to implement these ideas. Together, they can enhance Nigeria’s buildings through knowledge, innovation, and better policies.