Energy Transition: Understanding basics of solar energy and why it has failed to peak in East Africa

 

East Africa has abundant hot sunshine around the year yet harvesting this for large utility scale electricity has remained small. Partially, it is because the technical aspects of solar power make it a complicated energy source system than it may appear. Understanding is important in helping to shape policy and accelerated solarisation.

By Moses Kulaba, Governance and Economic Policy Center

@energy transition @solarenergy @solarafrica  @energypolicy

Early in March 2024 a heat wave hit South Sudan with temperatures soaring between 41 to 47 degrees Celsius. The temperature and its accompanying heat were too high that the South Sudanese Ministry of Health closed schools, advised the public to stay indoors and drink a lot of water to remain hydrated.  

The images of South Sudanese baking eggs under the open sun on the streets of Juba went viral rekindling the debate on the potential of harnessing solar energy to generate power. In a two part articles and policy briefs we discuss the technical aspects of solar power and the policy terrain undermining the utility scale investment levels in East Africa.

East Africa has abundant hot sunshine around the year yet harvesting this for large utility scale electricity has remained small. With about 50 MW generation, the Garissa Solar Plant is the largest grid connected solar power plant in East & Central Africa.

So far Egypt has the largest solar park in Africa. It spans 37 kilometers and has a total generation capacity of around 1.8 gigawatts, which is enough to power hundreds of thousands of homes and towns. The question is therefore asked why have we not seen large uptake of utility scale solar projects in East Africa? The answer zeros down to technology, political will and mindset.

The technical aspects of solar power make it a complicated energy source system than it may appear.  The mechanics behind solar power and how it can be harnessed with impact on a larger scale can/ is more complicated than it may appear. Harnessing solar for electricity generation requires technical expertise, political will and investment.  This brief dissects the basics of solar power and its potentials as a Peaker clean power source for East Africa.

What is solar power

According to scientists, solar energy comes from nuclear reactions which happen deep in the sun’s core. The sun is a giant hot glowing mass of hydrogen and helium at the center of our solar system.

Every second the sun burns and loses about 4 million tons of mass in a continuous complex nuclear fusion reaction. That mass when converted into energy is what drives solar energy outwards from the sun radiating into the solar system. Solar energy radiates from the sun as electromagnetic waves of different frequencies and energies which can be trapped and transformed into solar electricity.

The solar panel collects energy from the sun, this energy goes into an inverter, which is a key component of a solar PV installation. The inverter converts the steady electric power coming into the inverter into alternating current (AC) which is the predominant form of power used in an electric grid or connected to a service panel at a house.

Role of solar in global power systems

Globally the role of solar is still small although it has been increasing over the years. Solar power contributes about 10% of all renewable energy and 1% of total world energy. Bioenergy, hydro power and wind contribute the bulk (90%) of the total renewable energy of about 900 Mtoe, accounting for 10.5% of total energy use. Solar photovoltaic and solar thermal provide 5% each of renewable energy. These statistics are growing as the world constantly moves towards clean energy solutions by 2030.

According to Renewable Capacity Statistics 2024 report released by the International Renewable Energy Agency (IRENA) shows that 2023 set a new record in renewables deployment in the power sector by reaching a total capacity of 3, 870 Gigawatts (GW) globally.

With solar energy continuing to dominate renewable generation capacity expansion, the report underscores that the growth disparity did not only affect geographical distribution but also the deployment of technologies. Solar accounted for 73% of the renewable growth last year, reaching 1 419 GW, followed by wind power with 24% share of renewable expansion.

Renewables accounted for 86% of capacity additions; however, this growth is unevenly distributed across the world, indicating a trend far from the tripling renewable power target by 2030.

The 473 GW of renewables expansion was led once again by Asia with a 69% share (326 GW). This growth was driven by China, whose capacity increased by 63%, reaching 297.6 GW. This reflects a glaring gap with other regions, leaving a vast majority of developing countries behind, despite massive economic and development needs. Even though Africa has seen some growth, it paled in comparison with an increase of 4.6%, reaching a total capacity of 62 GW. Clearly, the room for solar as a new form of energy is still available.

Determinants of solar power and characteristics

The amount of solar received on the earth is determined by a number of factors such as what is technically called irradiance and irradiation. Solar Irradiance is the term generally used to measure the solar flax at a given location and is usually quoted in units of Watts per square meter. Solar Irradiation is used to measure the long-term average solar flax at a given location and usually quoted in Kwh per square meter.

This can further be categorized as Direct Normal Irradiation (DNI) which is the solar power measured at the surface of the earth at a given location with a surface element perpendicular to the sun’s rays. Diffused Horizontal Irradiance/irradiation (DHI) measuring the radiation at the earth’s surface from light scattered by the atmosphere and Global Horizontal Irradiation (GHI) which is the total irradiance from the sun measured at the earth surface on a horizontal plane.

Africa is often considered and referred to as the “Sun continent” or the continent where the Sun’s influence is the greatest.  According to the “World Sunshine Map”, Africa receives many more hours of bright sunshine during the course of the year than any other continent of the Earth and many of the sunniest places on the planet lie here.  This has also been. recognized by the international council of science who confidently pointed out that Africa has the best resources when it comes to solar power availability. This resource is usually measured in form of solar irradiance.

The amount of solar irradiation and irradiance are further determined by factors such as

  1. Geographical location and proximity to the equator, whereby close proximity to the equator provides short distance to the sun with the sun rays having a direct strike to the earth’s surface and therefore higher temperatures optimal for solar energy.
  2. Elevation above, where by the higher you go, the more exposure to sunlight and amount of sunshine received
  3. Seasonality of weather, cloud cover and precipitation, which determine how much sunshine is recorded at a given location.

Strategically located along the equator, East Africa receives between 500-3500 hours of sunshine per year, therefore making it a perfect site for harnessing solar energy throughout the year.

Trends of Solar installations and future of utility scale solar power

Solar Photo Voltaic (PV) installations have been increasing beyond expected projections, however the rate is still too low to pace the required demand.  The costs of solar PVs have been dropping constantly by around 20% for every doubling of cumulative shipped volume. At the present rates the costs could have about every 10 years.

Solar panels are made from semi-conductor materials which conduct photovoltaic cells through a complex process of doping and bonding as energy moves through different bands to release electricity. This harnessed for domestic use or as Concentrated Solar Power (CSP) for Utility scale electricity generation. According to statistics CSP is expected to grow by nearly 90% over the next 5 years and nearly tripling the rate of the past 5 years.

Solar and Socio-economic effects

Utility scale solar projects require large tracts of land to set up. For example, the 1,547 MW China Great Wall Project in the Tegger Desert occupies 1200 square kilometers of land with an installed solar field of 43 square kilometers. The US Star 1 and 2 project sits on a large piece of land with1,720,000 panels field generating 1,664 MW enough to power 255,000 homes.  This requirement for size to pave way for their establishments, can lead to land grabbing, mass evictions and displacements escalating socio-economic conflicts between the local residents and the investors. East Africa is already awash with land-based conflicts, displacement from ancestral lands and unfair compensation of victims.

Solar and the environment

Because of its low penetration, the environmental impacts of solar energy are still minimal.  These could increase as the uptake expands however the following can be noted

  • Land use and eco system. Solar farms at utility scale electricity generation requires large areas of land and this can cause disturbances to the land vegetation and sensitive eco-systems. The thousands of solar panels spread across hundreds of square meters can be an eye sore and environmental nuisance
  • Impacts on birds (avian): Solar can have adverse impacts to birds through distraction inflight eye sights and incineration. According to a study by the USGs estimated that its Ivanpah CSP plant in Nevada was incinerating about 6000 birds per year. Globally it was estimated that between 40,000 to 140,000 birds died due to large utility scale solar projects.
  • Toxic materials used; Solar panels are produced using toxic materials such as silicon which reacts and decomposes to produce tetrachloride, a toxic substance must be well disposed as an industrial waste.

Generally, solar is not carbon free based on a 30-year life cycle analysis but has a very low carbon foot print. This carbon foot print could increase as solar penetration expands matching the global drive towards a clean energy future. However, for now it remains one of cleanest source of energy.

Please read our next article on Tanzania and EAC’s potential and the policy terrain and regulation

The Petals of Blood: Dissecting the contagion effect of Sudan war on South Sudan and EAC with lessons on governance and state failure

The Sudan war has been raging for almost a year, with catastrophic effects now spreading beyond Sudan’s borders, affecting its neighboring South Sudan and the East Africa Community (EAC) in many ways.

By Moses Kulaba, Governance and Economic Policy Centre & James Boboya, Institute of Social Policy and Research (ISCPR), South Sudan

According to the United Nations, since it started, the war has now destabilized the entire region, leading to the deaths of more than 5,000 Sudanese and displacing millions both within the African nation and across seven national borders.[1]  Sudan is now home to the highest number of internally displaced anywhere in the world, with at least 7.1 million uprooted.[2] More than 6 million Sudanese are suffering from famine, and these numbers are growing every day.  The health system has broken down, and more than 1,200 children have died from malnutrition and lack of essential care. [3]The UN now describes the Sudan conflict as a forgotten humanitarian disaster, while the International Crisis Group has warned that Sudan’s future, and much else, is at stake.

Lest we forget, within a short period, the third largest nation in Africa, with a size of more than 1.8886 million square kilometers and at least 46 million people, has no properly functioning government, and all state institutions have collapsed with the effects of its meltdown spilling over to its neighbors, particularly South Sudan.

South Sudan is host to thousands of Sudanese refugees forced across the border into South Sudan, exerting social and economic pressure on an already fragile state that was already sinking under the burden of its own civil war and internal conflicts.

The Norwegian Refugee Council (NRC) reports that more than 500,000 people have now fled from the war in Sudan to South Sudan. [1]This means that over 30 percent of all the refugees, asylum seekers, and ethnic South Sudanese were forced to flee Sudan since the war exploded in April 2023 for protection in one of the poorest places on earth. “South Sudan, that has itself recently come out of decades of war, was facing a dire humanitarian situation before the war in Sudan erupted. It already had nine million people in need of humanitarian aid, and almost 60 per cent of the population facing high levels of food insecurity.

As of 28 January 2024, more than 528,000 ethnic South Sudanese, Sudanese refugees, and other third-country nationals had crossed at entry points along the South Sudan border into Abyei Administrative Area, Upper Nile, Unity, Northern, and Western Bahr El Ghazal. The majority, 81 percent, entered at Jodrah before making their way to the transit center in Renk. Ethnic South Sudanese who have crossed the border from Sudan are commonly referred to as “returnees.” Still, in reality, many of them were born in Sudan and have never been in South Sudan, and therefore have no kinship connection in host communities.

The conflict has spilled deeper into other East African countries, with thousands seeking refuge and safety from it. The education system collapsed, sending thousands of learners back home and hundreds who could afford to flee exile to continue their studies. Some of these were admitted to Rwandan and Tanzanian Universities.

The Sudan and South Sudan experiment was a governance disaster in the waiting and perhaps serves as a lesson of how a firm grip on power, corruption, and misgovernance can ultimately lead to catastrophic state failure and collapse.

Donald Kasongi, Executive Director of Governance Links and a former senior officer with the Accord, a regional conflict organization, describes the post-Garang South Sudan and post-Bashir Sudan as a protracted governance failure. The diverse strategic roles of Khartoum, Beijing, and Washington in the Sweet South Sudanese oil are now evident.  So far, none is a victor.

The role of external interests in shaping national discourse has been at play. Sudan is caught between the interests of the West and the Middle East and China, with both interested in controlling access to Sudan’s resources, cultural wealth, and strategic positioning as a buffer between the North and South. Before the war, Sudan identified itself with the Islamic world and pronounced itself as an Islamic state. Despite this alignment, the OIC and the larger Islamic world has not come to its help. Sudan remains an isolated state left to collapse at its fate.

In South Sudan, the Garang vision of a strong independent nation was lost. After his demise most of the post Garang political elites or military war generals became pre-occupied on restoring the lost years at war by amassing wealth through corruption and sharing out of the limited resources from the oil resources. As a consequence, a strong nation is yet to be built. They had won the war but lost their country. The same mistake plays out in Sudan. Perhaps the conflict is a lesson on what it means to lose what is so dear to one- A country.

In short, the transition in both countries (Sudan and South Sudan) were not well managed and what we see are petals of blood from toxic flowers of bad governance which have flourished like a forest planted along the banks of the river Nile.

According to James Boboya, the Executive Director of the South worrisome. The raging war has made South Sudan’s oil exports via Port Sudan difficult. Oil exports have collapsed by more than half from 160,000 barrels per day in 2022 to 140,000 barrels per day in 2023. This was more than half of the previous peak of 350,000 barrels per day before civil war broke out in 2013.[2] The South Sudanese dollar collapsed in value. There is a financial crunch and the South Sudanese government has not paid its public and civil servants for months. There is a risk of insurrection and demonstrations by public servants that will be likely joined by the military. This would plunge South Sudan into chaos and total collapse just like its Northern neighbor.

Moreover, this conflict and its associated effects comes in an election year for South Sudan.  The general elections are viewed as a watershed moment which may see a transition from President Salva Keir to a new cadre of leadership. With the economic crunch, South Sudan may not be able to organize and fund a credible general election. This will be not good for South Sudan’s democracy and desired future.

With the world’s media focused on the Russia-Ukraine war and the Israel-Gaza wars, little is covered about the Sudan conflicts nor the total economic catastrophe that South Sudan faces.

If not addressed, the Sudan war will be soon inside the borders of the EAC. Can the EAC afford to stand by and watch longer as its member state, collapses.  Mediation efforts led by Kenya and Djbouti were postponed last year. Direct talks between Abdel Fattah al-Burhan, Sudan’s army chief and de facto head of state, and General Mohamed Hamdan Dagalo, known as Hemedti, head of the RSF paramilitaries remain futile.  What can South Sudan and the EAC do now to avert further catastrophe?

During a joint webinar organized by the Governance and Economic Policy Center (GEPC) and the Institute of Social Policy and Research (ISCR) in South Sudan in April, a distinguished panel of experts discussed and enabled us to understand the contradictions and magnitude of this war with implications and lessons on extractive governance, and state collapse drawn for East Africa and Africa generally, can be taken to avert the situation and its contagion effect on the EAC and Africa generally. The panelists and participants highlighted some key lessons and takeaways that can be drawn from the conflict.

Key lessons and takeaways

Ethnicization of politics and governance can lead to a spiral of violence and catastrophic state collapse, especially when the strong ruling elite and regime finally lose control of power.

A previously united Sudan started getting balkanized when the ruling elites started practicing the politics of ethnicity and religion pitting the largely Muslims in the northern and western parts of the country against their Christian southerners.  The Christians were portrayed as slightly inferior, denied political and economic opportunity, and subjected to forced Islamisation, and inhumane conditions such as slavery. Faced with what was considered unbecoming conditions the Southerners opted for a rebellion and demand for independence. The first and second Sudanese civil war (including the Sudanese Peoples Liberation Movement (SPLM/A) were born and the political dynamics in Sudan changed for decades after. New factions such as the Sudanese Liberation Army (SLA) and the Justice Equality Movement (JEM) emerged and Sudan never remained the same.  Sentiments for cessation and independence in Darfur flared and faced with an insurgency, President Omar enlisted militias including the Janjaweed to quell the rebellions. Around 10,000 were killed and over 2.5 million displaced. The balkanisation of Sudan was continuing to play out.

Militarisation of politics erodes democratic values and principles which can take decades to rebuild.

Omar Bashir came to power in 1989 when, as a brigadier general in the Sudanese Army, he led a group of officers in a military coup that ousted the democratically elected government of Prime Minister Sadiq al-Mahdi after it began negotiations with rebels in the south. Omar Bashir subsequently replaced President Ahmed al-Mirghani as head of state and ruled with the military closely fused into the politics and governance of Sudan.

The military elites elevated to power during President Omar Bashir’s government enjoyed privileged positions.  Even with his overthrow in 2019, these generals maintained a firm grip on the Transition Military Council and the Civil-Military Sovereignty Council.  These are less likely to accept any position below total control of the central authority. The net effect is that the return to full civilian and democratic rule of state governance in an entrenched militarized political environment such as Sudan can or may take decades to be rebuilt.

Vulnerability to geopolitical manipulation and fiddle diddle can be a driver to political instability and eventual weak governance

Both Sudan and South Sudan have been victims of well-orchestrated geopolitical game plans from external powers interested in taking control of the rich natural resources wealth that these countries possess. Sudan and South Sudan have vast oil deposits and forestry products.  With eyes focused on these resources external powers succeeded in playing one community against another and one country against the other and successfully throwing the region into an abyss of endless crisis. Religion was used as a tool to play the North against the South and continues to be used in some segments of the Sudanese and South Sudanese communities.

Key Takeaways

  1. The East African Community (EAC) governments cannot afford to take a wait-and-see attitude. The problems facing Sudan and South Sudan are latently present in several other EAC countries. For this reason, therefore without taking lessons from Sudan and South Sudan other countries can also easily erupt in the future, bringing down the entire EAC. The EAC has therefore an obligation to ramp up support for the resumption of the peace process and finding lasting solutions for peace and tranquility in the two countries. For this to happen there has to be trust and objectivity of the actors to the crisis and the EAC mediators. 
  1. Stop ethnicization and militarization of politics and state governance: The Sudan experience demonstrates this, whereby the collapse of President Omar Bashir’s strong grip on power let loose the lid off a can of worms that had eaten the state to its collapse. Similar conditions of ethnic rivalry in state governance have created uncertainty about guaranteed stability in South Sudan. In some other EAC member states there have been attempts to elevate dominant ethnic groups to power and military influence in state politics built around one strong leader. The Sudan experience demonstrates that the absence of such a strong leader holding the center together can lead to a lacuna, leading to a trail of conflict and instability leading governance to fall apart and eventual state collapse.
  1. The EAC countries must stop viewing at South Sudan as merely a market but as an independent viable state whose stability is good for the entire region. According to the EAC trade statistics, South Sudan was the leading market for goods from Uganda and Kenya. With a total population of 11 million and a collapsed agricultural and industrial base, South Sudan has provided a ready market for agricultural goods and manufactured goods from Uganda and Kenya. According to UN Comtrade Data Uganda exported goods worth USD483.9Mln and Kenya’s exports to South Sudan were worth USD170Mln. Uganda’s exports to Sudan also increased by 154% from around USD48Mln in 2016 to USD123Mln in 2022.  With the eyes largely focused on trade opportunities, there can be a tendency to lose track of the human suffering that the people in these countries face. Also, the jostle for geopolitical control over trade deals can overwhelm the genuine solidarity intentions of good neighbors. The EAC members should focus on the stability of these countries. 
  1. The International Community Must not give up on Sudan and South Sudan. Despite the donor fatigue and reports of corruption, the international community has a moral obligation to continue engaging with the protagonists in the war, facilitating the avenues for a peaceful resolution of the conflict and providing humanitarian aid to the suffering people. The Sudan and South Sudan conflict must be treated with equal measure with the Ukraine-Russia, Israel, and Gaza conflicts. The EAC must scale up diplomatic efforts and be an Anchor in Chief in this process, coordinating and connecting Sudan, South Sudan to the world. 
  1. The EAC media and Civil society must continue highlighting the suffering in Sudan and South Sudan. With the Israel and Gaza war ongoing, the Sudan and South Sudan stories that were largely covered by the Western media have since died out.  There has been little coverage given within the EAC of the recent developments in this war and how it is affecting its neighbors. Moreover, with limited internet connectivity and restrictive conditions, communication advocacy from inside Sudan and South Sudan is quite difficult.  The media and civil society in the EAC therefore must speak loud on behalf of their Sudanese counterparts

 

[1] War in Sudan displaces over 500,000 to South Sudanhttps://www.nrc.no/news/2024/january/sudan-refugees-to-south-sudan/#:~:text=%E2%80%9CMore%20than%20500%2C000%20people%20have,the%20poorest%20places%20on%20earth.

[2] The East African Business Khartoum unable to ensure smooth export of South Sudan oil https://www.theeastafrican.co.ke/tea/business/khartoum-unable-to-ensure-smooth-export-of-south-sudanese-oil-4564064

[1] Sudan conflict: ‘Our lives have become a piece of hell’ https://www.bbc.com/news/world-africa-67438018

[2] War in Sudan: more than 7 million displaced – UNhttps://www.africanews.com/2023/12/22/war-in-sudan-more-than-7-million-displaced-un//

[3] More than 1,200 children have died in the past 5 months in conflict-wrecked Sudan, the UN sayshttps://apnews.com/article/sudan-conflict-military-rsf-children-measles-malnutrition-ec7bb2a1f49d74e7b5f01afa12f16d99