Africa’s Single Electricity Market: Pools and Mini-Grids

Given this the magnitude of the energy access problem in Africa, a continent-wide risk-guarantee scheme should be established, ideally by a combination of African and other multilateral lending institutions. Such an integrated approach, through which overall savings can outweigh risk premia  could be articulated under the aegis of the African Single Electricity Market, launched in early February 2021 with the main goal of harmonizing regulatory and technical aspects of electricity generation, transmission, and distribution across the continent…

Most electricity projects in Africa are undertaken by foreign developers, notably European, Chinese, and United States companies, owing to their experience and, especially, their ability to secure financing. As a result, African governments have introduced different types of so-called local-content requirements, namely obligations concerning local employment, procurement of local goods and services, and the transfer of technologies and know-how, to which foreign investors have to abide. In countries such as Kenya and Nigeria, these requirements are defined through quantitative targets, whereas in other countries, such as Uganda and Zambia, they take the form of qualitative goals….

Power pooling, through cross-border trade in electric power, helps reduce electricity bills and enhances the reliability of electricity supply. Regional power pools, based increasingly on renewable energy supplies, are now possible across most of the African continent. Nonetheless, additional efforts are needed to reap the full benefits of power pooling….

South Africa is the main electricity producer for the Southern African power pool, facilitated by the Southern African Development Community (SADC). Given the challenges that the country is increasingly facing to meet its domestic demand for electricity, and the sharp decreases in cost of solar, wind, and energy storage, the case for relying on solar and wind energy–powered electricity generation becomes stronger in the region. Yet, at present, for both renewable energy and electric-power transmission, many of the investment discussions in the SADC region focus on large dams, which have been the technology of choice for decades. Concentrating solar power, a technology that generates electricity from the heat obtained by concentrating solar energy (in contrast to converting solar energy directly into electricity, as photovoltaic systems do), is already being deployed in South Africa…. Concentrating solar power technology can help shift the balance away from hydropower and toward solar energy, but only to the extent that stronger financial incentives are in place, compared to those introduced thus far…

To date, the members of the Maghreb Electricity Committee (COMELEC), Northern Africa’s power pool, have only engaged in cross-border trade with the Iberian Peninsula, across the Mediterranean Sea (Spain currently exports electricity to Morocco). As concentrating solar power in Morocco develops, the country plans to export electricity to Spain and possibly Portugal. Tunisia and Egypt are planning similar export arrangements (with Italy and Greece, respectively). Against this background, COMELEC has pledged to launch, in 2025, a common electricity market for its five members…

Both the Eastern Africa Power Pool (EAPP) and the West African Power Pool (WAPP) originate from preexisting cross-border arrangements aimed at promoting cooperation on energy issues. In both regions, cooperation thus far has been limited to bilateral agreements, such as the lines linking Kenya with Ethiopia and Ghana with Burkina Faso….The Central African Power Pool (CAPP) remains underdeveloped. Poverty and other developmental challenges in the region limit the size of the electricity market, thus inflating prices.

In moderately populated areas, where both grid extension and deployment of a relatively large number of stand-alone electricity-generation systems would be prohibitively expensive, off-grid mini-grids are the most economical electrification option in most cases. The so-called third-generation minigrids, which combine photovoltaic solar systems and batteries with or without a back-up diesel-powered electricity generator, require less than 2 weeks of scheduled maintenance per year. Such a high level of reliability makes it possible to incentivize off-grid mini-grid deployment through performance-based subsidies.  For example, with World Bank backing, Nigeria’s rural electrification agency pays off-grid mini-grid developers US$ 350 per connection, provided that the customer has had a steady supply of power for at least 3 months. Similarly, the reliability of third-generation mini-grids allows developers to offer customers a contract that includes, in addition to the electricity connection, the option to purchase income-generating appliances, such as machines for welding, milling, and rice hulling, thus increasing deployment rates…

Overcoming the barriers to interconnected mini-grid development requires national governments to clarify licensing procedures and tariff regulations and ultimately establish unambiguous tariff levels for the various interconnection options, a set of tasks that can be facilitated by the International Renewable Energy Agency….

Excerpts from Daniel Puig et al., An Action Agenda for Africa’s Electricity Sector, Science, Aug. 6, 2021

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