News
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Duke's Harris Nuclear Plant Shut Down for Repairs
LCG, May 17, 2013--Duke Energy removed the Harris Nuclear Plant from service Wednesday evening after indications of a flaw in the metal of the reactor vessel head were discovered. The Nuclear Regulatory Commission (NRC) stated on May 15 that evaluations showed a 0.26-inch flaw that exhibited characteristics of primary water stress corrosion cracking.
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DP&L Plans to Retire Six Coal Units
LCG, May 16, 2013--Dayton Power & Light (DP&L), a subsidiary of AES Corp., announced earlier this week plans to retire six, coal-fired power generating units by June 2015. The retirements, totaling nearly 600 MW of electric generating capacity, are driven by existing and expected environmental regulations, including the Mercury and Air Toxics Standards (MATS).
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Industry News
GE to Construct Hybrid Renewable Power Plant in Turkey
LCG, June 8, 2011--GE Energy (GE) announced that Turkey's MetCap Energy Investments selected GE's hybrid renewable-natural gas, combined cycle design for a 530-MW plant scheduled to commence operations in 2015. The energy facility will include wind turbines with a generating capacity of 22 MW, along with 50 MW of solar-thermal technology. The project site is in south central Turkey.
The solar thermal power system will be created by eSolar. GE announced on Monday that it would invest in eSolar to supply the solar portion of the system and that it would have licensing rights to sell and develop stand-alone solar thermal or hybrid power plants globally, using eSolar's technology.
eSolar employs a concentrated solar power (CSP) design. A field of sun-tracking, dual-axis heliostats reflects solar energy on a thermal receiver mounted atop a central power tower. The energy is used to create steam. In this hybrid design, the solar steam supplements the steam supply created from the gas-fired, combustion turbines. The high-pressure steam in turn drives the steam turbine to generate power.
Conceptually, the hybrid design adds solar power at a low incremental cost relative to building a stand-alone solar thermal power plant, as the incremental cost (above a stand-alone gas-fired combined cycle plant) is roughly the cost of the heliostats and power tower.
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