In energy terms as well as water and food security, it is necessary to plan for 30 or even 50 years ahead.
Lawrence Jones, vice-president of US energy company, Alstom summed up this view in a panel discussion when he noted that politicians should be prepared to put in place projects that they might not live to see implemented. However, short-term thinking remains the order of the day and political considerations are most often given priority.
A classic case, mentioned only in passing by Leon Tromp of the Lesotho Highlands Water Commission, applied to the need to carry out essential maintenance of the tunnels and equipment that provide water to South Africa and power to Lesotho.
This coincided with the last election in South Africa.
Such maintenance takes place every ten years and covers the 55km of tunnels that link the Mohale to the Katse dam and from there to the Ash River that feeds Gauteng’s major water source, the Vaal dam.
Not only would Lesotho lose its generating capacity - that would have to be made up from Eskom in South Africa - but the flow of water into South Africa would be disrupted and could cause shortages to farmers.
"So it was not possible to have an outage then," Tromp noted.
In the event, the delay caused no problems and, with the election out of the way, the maintenance was completed.