The planned water spillage from the Nalubaale and Kiira will not affect residents
and other activities downstream.
The Directorate of Water Resources Development which is charged with the regulation
of water resources confirmed that power generator, Eskom Uganda has been
allowed to spill excess water than it usually consumes.
The Commissioner in Charge of Water Resources Planning and regulation, Dr.
Callist Tindimugaya sasy Eskom was allowed to spill more water downstream to avoid
possible damage to the two dams located along the Nile.
There reports that Eskom had obtained permission to release over 400 cubic meters
of water per second-enough to fill an Olympic swimming pool every six seconds.
Eskom said the planning spill beginning this Friday was as result of excess
water due to the increase of water level in Lake Victoria since October 2019.
But Dr Tindimugaya explained to Uganda Radio Network that Eskom asked to
release less water than usual because of a reduction in electricity demand from
the Kiira and Nalubale dams.
//Cue in; “We allowed them…
Cue Out… through the turbine.”//
He says the balance of the 400 cubic meters per six seconds have to the
spilled because they don’t need it to generate more than the required water for
//Cue in; “Spilling is just...
Cue Out…smoothing out ordinary.”//
Tindimugaya explained that it is normal for the excess water to be
discharged through spill gates but should be controlled to avoid any damage downstream.
The water is expected to take a natural flow through Bujagali, Isimba and finally
Karuma up to other riparian states along the Nile without causing any flooding
along the way
There was fear that the huge volumes of water through the spill gates would negatively
affect other activities downstream like lake side farming and fishing.
Operations Manager, Paul Tentena could not reach on phone for comment about how
long the spillage will take.
The sluices gates of Nalubaale Power Station were lasted tested in 2015
after they had been repaired in preparation for eventualities like increased
A sources at Eskom that asked for anonymity told URN the power company may
resort to using the sluice gates as one off the option for flood control and
Pedestrians witness water showers and misting along the old Owen falls bridge
as the spilling commences.
How Does Hydroelectric Energy
Most hydroelectric power plants have a reservoir of water, a gate or valve
to control how much water flows out of the reservoir, and an outlet or place
where the water ends up after flowing downward.
Water gains potential energy just before it spills over the top of a dam or
flows down a hill. The potential energy is converted into kinetic energy as
water flows downhill.
The water can be used to turn the blades of a turbine to
generate electricity, which is distributed to the power plant’s customers.