POWER October 2014 - 14

ate as a closed-loop, pumped-storage facility,
using the excavated open mine pits as
reservoirs. Developer Eagle Crest Energy
and engineering firm GEI Consultants have
led licensing efforts. (For more on the Eagle
Mountain project, see the article on hydroelectric
development in this issue.)
Eskom Gets OK to Increase Power
Prices. The National Energy Regulator of
South Africa (NERSA) in late July gave stateowned
utility Eskom permission to raise
power prices in 2015 above the 8% tariff
increase over a five-year period, approved in
2013. The adjustment will help Eskom recoup
about R7.8 billion ($730 million) in revenue
after costs exceeded projections between
2010 and 2013. Eskom had last year asked
NERSA for approval to increase tariffs by 16%
to offset a revenue shortfall it expects of up
Correction
The August cover article on the Ivanpah
Solar Electric Generating System contained
an error in the plant's water usage
statistics. The article should have
stated that the plant has used about
20,000 gallons of water per day.
to R225 billion ($21 billion) over the next
four years. The utility is scrambling to build
new power generation capacity to meet surging
demand.
AREVA to Replace South African Nuclear
Plant's Steam Generators. France's
AREVA in August won a contract to replace
six steam generators at the two-reactor Koeberg
nuclear plant owned by state utility Eskom.
The refit, expected to be completed in
2018, is part of the country's plans to install
up to 9.6 GW of new nuclear power by 2030
to overcome chronic power shortages and reduce
greenhouse gas emissions. The 1.8-GW
Koeberg Station near Cape Town is Africa's
only nuclear plant. It provides about 5% of
South Africa's power.
First Commercial Order for MHI
Vestas' 8-MW Offshore Wind Turbine.
Denmark's DONG Energy and MHI Vestas,
a recently launched joint venture between
Vestas Wind Systems and Mitsubishi
Heavy Industries, on Aug. 21 signed a
conditional deal for 32 V164-8.0 MW offshore
wind turbines for installation at the
Burbo Bank Extension project in Liverpool
Bay, off the coast of northwestern England.
The deal marks the first commercial order
for the joint venture's proprietary wind turbine
model. The companies in 2012 agreed
to conduct a number of test activities for
the turbine's prototype at a test center in
Østerild, Denmark. The agreement is conditional
upon DONG Energy's final investment
decision for the project.
Voith to Embark on Challenging
Modernization of German PumpedStorage
Plant. Voith will modernize a
generator at E.ON Kraftwerke's 620-MW
Waldeck 2 pumped-storage power plant
in North Hesse, Germany, under a contract
signed in August. Voith delivered the
original two 265-MVA generators at the
Waldeck 2 station in 1970. After the company
completes replacement, assembly,
and commissioning of the stator and rotor
of machine 6 at the plant, the project will
see an increase of about 10% in efficiency
and a lifetime extension. But, the company
cautioned, modernization won't be
easy because the turbine is situated vertically
above the motor-generator (and a
multistage pump is installed underneath),
which means the company will first have
to disassemble the original turbine to replace
the generator. ■
-Sonal Patel is a POWER associate editor
(@POWERmagazine, @sonalcpatel).
1
14
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POWER October 2014

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