Dear Engineer,

 We have commenced the process of helping 100 engineers among members of the Nigerian Society of Engineers to get international certification as Certified Energy Auditor (CEA) and Certified Energy Manager(CEM)

These certifications have global acceptance and recognition in more than 100 countries including the US, Canada and the EU. The certifications from the Association of Energy Engineers USA has become a major capacity building programme for energy managers all over the world.

Through support and technical assistance from the German Development Agency (GIZ) through the NESP programme, Wasser and Bau is collaborating with resource persons to deliver some training in the area of Energy Auditing and Energy Efficiency to member of the Nigerian Society of Engineers.

With Nigeria aiming to improve on efficient utilization of energy resource in the near future, Energy Auditing and Energy Efficiency is expected to take center stage in the country’s effort to attain energy sufficiency. Our mission is to training and build the capacity of the next generation of engineers that will provide services and technical knowledge in these areas and thereby creating jobs

We will partner and seek support from our German partners and the AEE USA to further streamline the process of getting at least 100 of our engineers obtain these certifications in 2021.

The first part of the training will commence virtually this March due to the COVID-19 restriction still in place in Nigeria. However, good arrangement have been put in place to deliver a seamless training for this course throughout the year.

Kindly note that Wasser and Bau is NOT the certifying body or will this training lead to automatic certification as CEA or CEM. However, this training is a preparatory course expected to provide a good foundation and mentorship for those interested in getting certified as Energy Managers and Energy Auditors

The training will be in three (3) Modules covering the entire curriculum of the CEA and CEM exams. Participants will have to register for any of the preparatory training course independently . We have carefully selected the topics and resources to meet the desired goal.

Click below to find out more about the Certified Energy Manager and Certified Energy Auditor

CEA Certification https://buff.ly/3cWljyb

CEM Certification  https://buff.ly/2P5UHlJ

Course 2 – Renewable Energy and Solar PV Design

Modules 1 – Introduction to Renewable Energy Technologies

Module 2 – Solar PV Design

Module 3 – Cost Estimation of Renewable Energy Systems

Module 4 – Computer Software Application

Module 5 – Energy and Electrical Basics

Date  15 – 17 March 2021

Venue: online via Zoom

Fee: Twenty-five thousand for each module (Discounted to N25,000)

Time: 3pm – 6pm

Register via  https://buff.ly/3ty74WD


The training will widely cover the design of photovoltaic systems, such as utility scale solar farms or residential scale systems (both on and off the grid). You will learn about the function and operation of various components including inverters, batteries, DC-DC converters and their interaction with both the modules and the grid.

After learning about the components, you will be able to correctly apply them during main design steps taken when planning a real PV installation with excellent performance and reliability. Through modelling, you will gain a deeper understanding of PV systems performance for different solar energy applications, and proficiency in estimating the energy yield of a client’s potential system.


Electrical Designers • Electrical Engineers • Sales Engineers • Electricians • Project Managers • entreprenuers • Installation and Operating Engineers requiring knowledge of PV Solar Systems • energy managers • infrastructure engineers and consultants


Module 1- Solar PV Application and Design

Upon completion of this module, participants should be able to;

•Distinguish between off-grid and grid-connected PV systems

•Distinguish, in principle, the difference between distributed and central PV systems and

•Name the different components used in grid-connected PV systems and off-grid PV systems

•Identify the different applications of off-grid PV systems.

•Identify the basic differences of PV cell types available.

•Describe the design of PV modules.

•Explain the function of PV inverters and name different types of inverters.

•Identify the different types of PV mounting structures and understand the fundamental requirements of mounting structures.

•Explain the basics of the photoelectric effect, calculate the output of a PV cell and name the main factors influencing the output of a PV cell.

•Name the basic electrical characteristics of a PV cell and interpret an I-V curve.

•Identify power output reductions on an I-V curve. Identify the impact of irradiance and temperature on PV cell or module voltage, current and power and describe how the I-V curve changes with changing irradiance levels and changing

Module 2- Solar PV System Sizing                     

Upon completion of this module, participants should be able to;

•Explain the basic concept of a mini- and hybrid power system

•Learn about different set-ups for PV-diesel hybrid systems

•Get to know a specific categorisation methodology for PV-diesel hybrid systems

•Define the concept and characteristics of load profiles and ddetermine what is peak load within a load profile

•Get to know the different concepts of PV penetration rate 

•Understand the concept of energy shares in hybrid systems

•Understand a genset’s minimum load level for the operation of a PV-diesel hybrid system

•Describe the performance in a typical hybrid system on a sample day

•Understand the relationship of increasing PV capacity and its meaning for system complexity

•Be familiar with the purpose of storage

Module 3 – Cost Estimation of Solar Systems and Project Evaluation                         


Upon completion of this module, participants should be able to;

•Explain the investment cost structure of a PV project and identify the most important CAPEX items.

•Explain the operating cost structure of a PV project and identify the most important OPEX items.

•Identify the lifetime of different system components

•Understand direct and indirect costs in PV-diesel hybrid systems

•Learn the difference between CAPEX and OPEX in hybrid systems.

•Understand the relationship of system design to the CAPEX/OPEX ratio

•Recall the LCOE methodology

•Learn the LCOE calculation for diesel generator systems

•Understand how PV penetration influences LCOE of a hybrid system

•Understand comparison parameters for PV-diesel hybrid systems 



Twenty five thousand (₦25, 000.00) Naira only per participant.

Payment and Registration

Name: Wasser & Bau

 Account No: 0006365809

Bank: Stanbic IBTC Bank

SEND EMAIL AND NAME TO 08140439427 to get the course materials in advance


Register in advance for this meeting:


  Click here to register and participate https://buff.ly/3sW36Hr 


Modules 1 – Energy Auditing

Module 2 – Energy Efficiency

Module 3 – Cost and financial Analysis

Module 4 – Computer Software Application

Module 5 – Energy and Electrical Basics

Date  18 – 20 March 2021

Venue: online via Zoom

Fee: Twenty-five thousand for each module (Discounted to N25,000).

Time:  3pm – 6pm

Register via  https://buff.ly/2OXmZPs

Find details here https://buff.ly/2Q3Obwn

Course 3 – Cost and Economic Analysis of Power and Energy Projects

Modules 1 – Energy Accounting

Module 2 – Economic Analysis and Life Cycle of Energy and Power Projects

Module 3 – Application of Excel and Excel Tools

Module 4 – Energy and Electrical Basics

Date 18 – 20 March 2021

Venue: online via Zoom

Fee: Twenty-five thousand for each module (Discounted to N25,000).

Time:  3pm – 6pm

Register via   https://buff.ly/3cI4F4V

Engr Uche Ihunweze , CEA

Lead Consultant

Wasser & Bau

Plot 242 Muhammadu Buhari Way

Central Business District



On behalf of Wasser & Bau, we would like to thank you for expressing interest to attend any of our training online.

We would like to inform you that we have uploaded some of the training videos on YouTube. You can visit our channel as well as other social media handles to download and watch them

The videos have been grouped into playlist on our channels at “ihunwezeu”

To access the videos on Water Reticulation Design, kindly click  https://www.youtube.com/watch?v=eZ4Z2UKN3c0

To access videos on Road Design Using Civil 3D, kindly click https://www.youtube.com/watch?v=m_4dEhjAXHI&list=PLKXpiaxeTJ42ktBiBn2y6R7sewhEH4rKl

To access videos on Sewer and Stormwater Design, kindly click https://www.youtube.com/playlist?list=PLKXpiaxeTJ406NNuxOwuKn64zyufcqtKt

To access more videos, kindly click on the YouTube channel   (ihunwezeu) and go the playlist to see all the videotraining playlist.

To access the lecture, note on Sewer and Stormwater, kindly click on any of the links to download

Urban Hydraulics

Urban Hydrology

Urban Stormwater Drainage Design

Sanitary Sewer Design

Rational Method for Pipe Sizing

Chart for Rational Method

Chart for Pipe Sizing – Nomograph chart (k=0.1 –  UPVC, PPR, PVC)

Chart for Pipe Sizing – Nomograph (k=0.4 – ductile iron and asbestos ceiling

Chart for Pipe Sizing – Nomograph (1.0 – concrete and concrete elements).

Example Exercise on Sewer Pipe Sizing

Example Exercise on Stormwater Pipe Sizing

If you would like to stay engaged with Wasser and Bau , please follow the updates in our website, social media (FacebookInstagramLinkedInTwitter,  YouTube)

Twitter https://twitter.com/BauWasser

Facebook https://web.facebook.com/Wasser-Bau-Limited-200419340130143

Linkedin https://www.linkedin.com/company/42466856/admin/

Instagram https://www.instagram.com/wasser_and_bau/

Best regards,

Uche Ihunweze 

Wasser & Bau Management