Graham Mackay, chairman of brewer SAB Miller, added that such spending was trailing Africa's economic growth.
BBC: Davos 2013: Africa must 'boost infrastructure spending'
Johannesburg may be South Africa's economic engine, but Cape Town is where the nation goes to play.
"Africa's economic growth is creating substantial new business opportunities that are often overlooked by global companies, " it said.
Goolam Ballim, chief economist of Standard Bank Group, warned that the power cuts would reduce South Africa's economic growth.
Insufficient infrastructure spending remains "the biggest risk" to Africa's economic growth, the boss of mobile phone network Bharti Airtel, has said.
BBC: Davos 2013: Africa must 'boost infrastructure spending'
It editorialized that South Africa's economic woes do require a war.
Generally deemed wretched after a 14-year war for independence from Portugal followed by 27 years of civil war that only ended in 2002, Angola is now one of Africa's economic successes thanks almost entirely to oil.
In 2013, the beads and bones of my childhood point to firm growth for Mozambique, with investment in the country's natural resources sectors, particularly coal and gas, the major driver while the power problems in Tanzania are unlikely to prevent it becoming one of Africa's economic growth stories.
Raw materials that are plentiful in Africa have been a crucial source of China's own spectacular growth while China is playing a key role in Africa's own economic development, particularly in infrastructure projects.
Most of South Africa's modern economic history springs from its underground resources.
Ethiopia, Ghana, Rwanda and Uganda have been among Africa's star economic performers recently, with annual GDP growth averaging over 6.5% in 2005-10.
But Badiane agreed that while some African nations are likely to remain net importers, Africa's improved economic performance over the last 10 to 15 years indicates many African countries do have the potential to become net exporters of food.
Perhaps his biggest policy success has been South Africa's rapid economic growth since the end of apartheid and the rise of a black middle class - but to the anger of many, wealth is more unevenly distributed than ever before.
"South Africa has made enormous progress over the past two decades, to the extent that it is now the region's economic powerhouse and Britain's biggest trading partner in Africa, " she said.
Nor was the King asked about the public apology he made after criticism of his trip to Africa while his country's economic crisis was at its height.
BBC: Spain's King Juan Carlos admits 'hurt' at economic fate
The lack of coherence also reflects the continuing argument between those who want human rights as a key part of foreign policy, and the pragmatists who want to concentrate on South Africa's direct political and economic interests.
Under Mr. Mandela's watch, the ANC dropped its more radical economic policies and engaged with South Africa's private sector, the biggest in Africa.
The troubled firm has been accused of being one of the biggest impediments to economic development in Africa's most populous country.
Mr Mbeki's deputy, Jacob Zuma, may have triggered the rand's latest slide by seeming to sympathise with Robert Mugabe, the president of Zimbabwe, whose policies have pushed South Africa's neighbour to the brink of economic collapse.
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Turkey, increasingly turning away from Europe, is on the road to becoming a more effective force in the Middle East than is the EU. China and India are competing to replace the Europeans as the most important non-U.S. economic actor in Africa.
Even as France faces stiff new competition from China, the U.S. and Germany to capitalize on the continent's vast economic potential, the country remains uniquely positioned to respond to Africa's security crises.
It is Africa's second-biggest economy, after South Africa, and the leader of the regional Economic Community of West African States (ECOWAS), accounting for roughly half of its GDP.
The Swiss-based World Economic Forum ranks Tunisia as Africa's most competitive country.
Propelled by its need to secure oil, natural gas and mineral resources to maintain its double-digit economic growth, China has become Africa's third-largest trading partner, behind only France and the United States.
In fact America's per capita income will then have been surpassed not only by South Africa's, but also by that of other emerging economic powerhouses, including Algeria, Argentina, Libya, Turkey and North Korea.
One reason is that most region's of the world are forging bigger economic blocs and Africa does not want to be left behind.
In the Swiss-based World Economic Forum's Global Competitiveness survey, South Africa comes top in sub-Saharan Africa and 50th out of 142 in the world.
ECONOMIST: South Africa��s business pre-eminence is being challenged
Throughout the 7th-13th centuries they maintained a wide trade network across Asia, Africa and Europe, which made them the world's leading extensive economic power.
Last June Statistics South Africa, the government agency that puts out the country's official economic data, admitted it had greatly overstated inflation for several months because of a glitch in measuring rents.
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