Engineering News 9 June 2011.

Maintenance and the refurbishment of ageing infrastructure was a common motivation put forward by municipalities applying for tariff increases above the National Energy Regulator of South Africa (Nersa) guideline of 20.38% for 2011/12…

http://www.engineeringnews.co.za/article/municipalities-seek-higher-power-tariffs-to-fund-infrastructure-upgrades-2011-06-09