Sorry to hear your country is having so much trouble and what you describe is typical of demand exceeding supply when development of the power system
doesn't keep up with the growth in usage.
Hydro developments are very expensive if the whole project is considered like construction of dam(s), spillways, inlet/outlet control works, diversion
tunnels, transmission system and of course the power station and generators. I'm assuming there is no manufacturer of hydro turbines/generators in
your country so virtually all of that needs to be sourced from other countries. A typical single scheme with a new dam and say 2 medium size turbines
would cost in the vicinity of 1 billion $US in today's market and the break-even time for hydro developments is around 50 years so private investors
don't see it as an attractive investment - they want returns somewhat faster than that. Also, planning and construction needs to be approx 10 years
ahead of projected demand growth to ensure continuity of supply.
The current worldwide financial downturn would make it difficult to finance such a project unless your government has the funds on hand already.
The best bang for the buck is currently gas turbines running on natural gas and they can be located virtually anywhere - all you need is a gas
pipeline in and a transmission system to connect into.
And don't overlook the enlargement of the distribution system required to deliver the extra power which is also going to be expensive in terms of
distribution transformers, substations, low voltage mains etc etc.
For your country's sake, I hope the current shortages are only due to enhancements currently in progress not being completed on time otherwise the
wait for reliable supply will be a long one.


