Sustainable Power for Rural Communities

Project Overview

This project, a collaboration under the ARUA/U21 Early Career Researcher Collaboration Award, aimed to address the significant energy and environmental challenges faced by off-grid rural communities in Ghana, South Africa, and Uganda. The core of the project was to investigate and propose sustainable, renewable energy solutions for domestic and agricultural applications to mitigate greenhouse gas (GHG) emissions and improve the quality of life for rural populations.

The project’s rationale stemmed from the observation that a large portion of the population in many African countries, particularly in Uganda, resides in rural areas and relies on agriculture for subsistence and income. These off-grid communities often lack adequate modern energy supplies, leading to environmental degradation through green cover reduction, GHG emissions like methane, and water contamination from agricultural activities. Agriculture is a major contributor to global GHG emissions, and this project sought to alleviate these emissions through proper waste management and the use of renewable energies.

  • Desk Research and Literature Review: Each participating country’s team conducted a literature review on the status of emissions and renewable energy in their respective countries. This involved searching credible online resources and official reports from organizations such as the Electricity Regulatory Authority (ERA) and the Ministry of Energy and Mineral Development (MEMD) in Uganda.

 

  • Field Surveys: Structured surveys were conducted in off-grid agricultural communities in Ghana, South Africa, and Uganda. The teams used specially prepared questionnaires to gather data on community demographics, energy needs, agricultural practices, waste management, and business activities from community leaders, farmers, and business people.

 

  • Data Collection and Aggregation: The collected data was compiled into digital formats, such as Google Sheets via Google Forms. The data was then cleaned and aggregated using tools like Microsoft Excel.

 

  • Data Analysis, Modeling, and Simulation: The collected field data and desk research information were analyzed. A techno-economic simulation model, built with MATLAB and MS Excel, was developed to evaluate the technical and financial viability of four clean energy solutions: a solar PV microgrid, a hybrid solar PV-Biogas microgrid, a community-shared solar water system, and energy-saving firewood cookstoves.

 

  • Networking: The project team maintained a strong network through monthly online meetings held via Zoom.

 

  • Dissemination of Findings: The project’s findings were shared in an online dissemination workshop in November 2024. Presentations were given by the three institutions, and feedback was collected from stakeholders and participants through a follow-up Google Form.

The project was a collaborative effort involving researchers and institutions from across Africa.

Lead Institution:

  • Makerere University (Kampala, Uganda)

Collaborating Institutions:

  • University of Ghana (Legon, Accra, Ghana)
  • University of Johannesburg (Auckland Park Campus, Johannesburg, South Africa)
  • Kwame Nkrumah University of Science and Technology (PMB Kumasi, Ghana)
  • Dojo Hub (SMC) Ltd (Kampala, Uganda)

Individual Participants:

  • Dr. Emmanuel Wokulira Miyingo: Lead Applicant, Lecturer/Dr. at the Department of Electrical and Electronics Engineering, Makerere University.
  • Dr. Jane Namaganda: Lecturer at the Department of Electrical and Electronics Engineering, Makerere University.
  • Dr. Daniel Oduro-Mensah: Senior Lecturer/Dr. at the Department of Biochemistry, Cell and Molecular Biology, University of Ghana.
  • Dr. Peter Oviroh: Researcher/Lecturer/Dr. at the Department of Mechanical Engineering, University of Johannesburg.
  • Dr. Phyllis Bernice Kwarteng Donkor: Senior Lecturer/Dr. at the Department of Teacher Education, University of Ghana.
  • Dr. Raphael Aloa Ayizanga: Senior Lecturer/Dr. at the Department of Animal Science, University of Ghana.
  • Dr. Evans Asenso: Senior Lecturer/Dr. at the Department of Agricultural Engineering, University of Ghana.
  • George Chukwuebuka Enebe: PhD Candidate in Mechanical Engineering Science, University of Johannesburg.
  • Jonathan Kakande: Department of Electrical and Electronics Engineering, Makerere University.
  • David Sunday Tusubira: CEO, Dojo Hub (SMC) Ltd, Makerere University.
  • Davis Kayiza Kawooya: Makerere University.
  • Samuel Boahen: Department of Mechanical Engineering, Kwame Nkrumah University of Science and Technology

Objectives

The project’s original objectives were clear and focused:

  1. Determine the current status of emissions and renewable energy utilization: This involved a comprehensive assessment of the existing situation in Ghana, South Africa, and Uganda.
  2. Determine and rank the potential of available renewable energy resources: The project sought to identify and prioritize the most promising renewable energy sources in the target regions.
  3. Determine the most viable renewable energy options: Based on the data collected, the team aimed to identify the best solutions for the communities.
  4. Establish a vibrant research network: A crucial goal was to build a sustainable collaboration among researchers from the participating institutions.

The project successfully met all its original objectives without any changes to the plan. The activities were divided among the participating institutions and included a combination of desk research, field surveys, data analysis, modeling, networking, and a dissemination workshop.

A key part of the methodology was a techno-economic simulation model, which was developed to evaluate the viability of various clean energy solutions. The model, built using MATLAB and Microsoft Excel, assessed both the technical suitability and financial aspects of the proposed solutions. It also calculated the CO2 emissions that could be avoided by implementing these clean energy interventions. The four clean energy solutions modeled were a stand-alone solar PV-powered microgrid, a hybrid solar PV-Biogas microgrid, a community-shared solar PV-powered water system, and energy-saving domestic firewood cookstoves. This modeling component was crucial for providing data-driven recommendations for the communities.

The project was a multi-national effort, with activities taking place in various locations across Ghana, South Africa, and Uganda. Desk research in Ghana was conducted at the University of Ghana and Kwame Nkrumah University of Science and Technology, while field surveys were carried out in the Central, Eastern, Volta, and Ashanti regions. In South Africa, the University of Johannesburg was the hub for desk research, with fieldwork also being conducted there. Makerere University in Uganda handled desk research, modeling, and simulation, and also conducted field surveys in districts from the central, eastern, and northern regions. Networking and the final dissemination workshop were held online, allowing all participants to collaborate effectively.

The project culminated in a final report and a manuscript, which detailed the findings and methodology. The work successfully established a research network and provided valuable insights into sustainable energy solutions for off-grid agricultural communities.

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