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Repairing a Failed Turbine: The Story of Returning G.M. Shrum Unit 3 to Service

Repairing a Failed Turbine: The Story of Returning G.M. Shrum Unit 3 to Service

On March 2, 2008, the Unit 3 runner at the 2,730-MW G.M. Shrum Generating Station experienced a major failure. This failure resulted in significant damage to the runner and water passage components and operation of the unit ceased until repair work could be performed.
Duckweed, the plant that may save mankind by enabling our species to live symbiotically, instead of parasitically, with the biosphere.

Duckweed, the plant that may save mankind by enabling our species to live symbiotically, instead of parasitically, with the biosphere.

              Duckweed, the tiniest angisoperm known to mankind, is ubiquitous on the planet as the duckweed geography map above shows and grows faster than any other angiosperm. Although Algea grows faster, removing water from duckweed is much lesss energy intensive than removing water from algae for starch and oil extraction biofuel, pharmaceuticals, chemical fertilizer […]
Industry News

Industry News

The New York Power Authority (NYPA) marked the completion of a nearly four-year overhaul of its Blenheim-Gilboa pumped-storage hydro project in New York at an event where NYPA President and Chief Executive Officer Richard M. Kessel was joined by state and local officials in highlighting the milestone.
US State-Level Legislators Spring to Geothermal Action as Federal Climate and Energy Stands Still

US State-Level Legislators Spring to Geothermal Action as Federal Climate and Energy Stands Still

Three new geothermal power plants came online in the United States in the past month — two in Nevada and one in New Mexico — bringing the industry to 3,444 MW online in eight states and making energy decisions more important than ever. Federally, 2013 was a fairly quiet year for geothermal law, but leadership exploded at the state level: At least 25 pieces of legislation were enacted in 13 states over the past year that relate directly to geo power or geothermal heating systems. The list is summarized below.
How Digital Governors Boost Operation of Multiple Needle Impulse Turbines

How Digital Governors Boost Operation of Multiple Needle Impulse Turbines

Installation of a digital governor on the single Pelton unit at the 91-MW Stanislaus facility allowed Pacific Gas & Electric to increase unit efficiency by 2% overall and 3% when operating in the lower power ranges.
FERC Commissioners Comment on Hydro

FERC Commissioners Comment on Hydro

The five commissioners of the Federal Energy Regulatory Commission share their thoughts about hydropower’s opportunities and challenges, as well as their specific hydro-related plans and priorities.
FERC RELICENSING: Clark Fork Settlement Agreement: Nine Years Later

FERC RELICENSING: Clark Fork Settlement Agreement: Nine Years Later

Collaboration was an earmark of the relicensing of Avista Utilities’ 742-MW Clark Fork Project.
Testing a Power System Frequency Control Product

Testing a Power System Frequency Control Product

Hydro-Québec in Canada and Svenska Kraftnät in Sweden have used a new power system frequency control test bench to accurately model the prime mover and speed governor of a synchronous generator.
Photovoltaics in the UK

Photovoltaics in the UK

It is perhaps because of its reputation as a country with a rain-soaked and overcast climate that solar photovoltaic (PV) has so far made only a minor impact on the UK's renewables sector. This is particularly evident when compared with Europe's market leaders Spain and Germany, and new growth in Italy.
Ocean/Tidal/Stream Power: Wave Power’s Path to Commercial Acceptance – A Comparison with Deepwater Wind

Ocean/Tidal/Stream Power: Wave Power’s Path to Commercial Acceptance – A Comparison with Deepwater Wind

Wave energy has seen a wealth of development and may be a technology that can offer a viable option and compete, at least as an equal, with deepwater wind. Current wave energy technology is close to commercial viability.