Differences that can be identified on affordable and clean energy as an external determinant of education system of South Africa and the other two developing countries

1. Access to renewable energy sources: The availability and access to affordable and clean energy sources, such as solar or wind power, can greatly impact the education system in developing countries. South Africa may have better access to renewable energy sources compared to other developing countries, which can result in a more reliable power supply for schools and universities.

2. Infrastructure for energy distribution: The infrastructure for distributing energy is crucial for ensuring a reliable and affordable supply of energy to educational institutions. South Africa may have better infrastructure for energy distribution compared to other developing countries, which can lead to a more stable energy supply for schools and universities.

3. Government policies and investment in clean energy: The government's policies and investment in clean energy can also impact the education system. South Africa may have stronger government support for clean energy initiatives compared to other developing countries, which can result in a more sustainable and environmentally-friendly energy supply for educational institutions.

4. Energy costs: The costs associated with energy can also impact the education system. South Africa may have lower energy costs compared to other developing countries, which can result in more affordable energy bills for schools and universities, allowing them to allocate more resources towards educational programs and infrastructure.

5. Environmental impact: The use of clean energy sources can also have a positive impact on the environment. South Africa's use of renewable energy sources may result in lower emissions and a reduced environmental footprint compared to other developing countries, leading to a healthier and more sustainable learning environment for students.