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Hydropower

Hydropower

Postby JohnMarshall » Tue Feb 01, 2011 12:48 pm

In traditional Hydropower, the force of water flowing downhill is used to power the station's turbines. As of 2006, hydroelectric power supplied about 715,000 megawatts or 19% of world electricity.
Hydropower produces essentially no carbon dioxide or other harmful emissions, in contrast to burning fossil fuels, and is not a significant contributor to global warming through CO2.
Hydroelectric power can be far less expensive than electricity generated from fossil fuels or nuclear energy.
New run-of-river technologies such as those planned for deployment by World Energy Holdings and Research PLC in Guatemala circumvent the concerns associated with the effects of reservoirs.
Many run-of-the-river power plants will have a dam across the full width of the river to utilize the entire river's force for electricity generation. Such installations will have a small reservoir behind the dam but since flooding is minimal, they can be considered "run-of-river."

Investments in run of river hydropower plants can produce solid returns for investors. New technologies and processes present strong upside potential for speculative investing in run of the river hydro power and can also be more risky according to Clean-Tech Investor

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The following are the main requirements for a run of the river project according to the website:

• Intake weir – This system is built to draw water from the river creating a small ‘headpond’ of water.

• Penstocks – Pipes that deliver the water from the headpond to the turbines in the power station downstream. Penstocks can represent 50% of a project’s cost.

• Powerhouse for the turbines and generators – The turbines and generators are the 'heart' of a project. Each turbine and generator is uniquely designed for a site. Design is determined by the head, or the difference in the elevation of water at the penstock and the elevation of the turbine inlet located in the powerhouse, flow and volume of water at each site.
• Tailrace – A channel through which the diverted water is returned to its natural flow in the river.

• Access roads – Roads may have to be constructed to get to and from the project site.
• Transmission lines – Transmission lines from the powerhouse to the local transmission grid.
Investing in Hydropower
Investments in hydropower can come in the form of direct investments in hydropower generation plants or by investing in companies with new technologies for hydropower generation.
World Energy Holdings & Research PlC (ISIN GB00B50QMR32, WKN A1C9BX, 0WE ) is a public limited company incorporated in England focusing on the development of power plants, specifically in Central and Latin America. World Energy Holdings & Research Plc is admitted for trading on the Frankfurt Stock Exchange Entry Standard (Open Market) under symbol '0WE' ('Zero' 'W' 'E'). The firm has several stakes in run-of-river power plant projects
JohnMarshall
 
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