Hydropower refers to power obtained from the flow of moving water. The earliest forms, of course, were water wheels. These have been in use for at least years.
A Workhorse Renewable Energy Technology This giant turbine Hydal power one of 16 that together can generate more thankilowatts [ MW] of electricity at the St. Lawrence- FDR power project.
Photo courtesy of New York Power Authority New York is the largest hydroelectric power producer east of the Rocky Mountains and is Hydal power in the nation in the generation of electricity from hydropower.
More than hydroelectric generating stations - some very small, a few very large and many in between -- connect to New York's electric grid.
Hydro plants typically meet at least 17 percent of the state's total electricity demand with renewable, clean and inexpensive power.
In a hydroelectric power plant, turbines that are run by moving water generate electricity with no greenhouse gas emissions and little pollution of any kind. DEC works with other New York State agencies and the Federal Energy Regulatory Commission to assess and mitigate possible effects on aquatic life from turbines or power dams.
Hydropower has provided electricity to New York since the first generating plant opened at Niagara Falls more than a century ago.
Reliable and able to quickly increase or decrease power output, hydro generation helps to stabilize the electric grid and support less-flexible sources of renewable energy.
Some facilities even can store energy for later use. Early New Yorkers harvested energy from falling water to directly drive mills that ground grain and sawed timber.
Mature water power technology enabled even small streams to run entire factories - but only if they were located where the stream's course dropped quickly to a lower level. Today, hydroelectricity carries the energy of flowing water far from stream banks, and new turbine technologies can harvest energy from tides and fast streams even without a large elevation drop.
Hydropower is among the most cost effective of all electricity sources. Because its "fuel" - flowing water - is local and is replenished whenever it rains or snows, the price of hydroelectricity usually remains stable even as markets for other fuels fluctuate. New York has strategically pursued policies designed to develop hydropower both conventional and newer hydrokinetic technologies as part of a diverse portfolio of renewable energy resources.
To support economic development and jobs, the Recharge New York program distributes low-cost hydropower to businesses in exchange for commitments to create and retain jobs in the state. Large and Small, Old and New Hydropower generation converts the energy of moving water into electricity.
A wide choice of technologies and scales gives hydro the ability to meet both large centralized urban electricity needs and decentralized rural needs. Conventional hydroelectric technologies In conventional hydroelectric plants, the turbines that generate electricity are turned by falling water.
Some conventional plants store water in reservoirs behind dams, controlling its release to generate predictable electric power and often providing drinking water, irrigation, flood control or navigation as well. Other plants called "run-of-river" facilities simply take advantage of an elevation drop in free-flowing water, incorporating little or no water storage.
The megawatt School Street hydroelectric plant in Cohoes is owned by a private company that operates several small hydro facilities in New York. Water diverted from the Mohawk River falls 90 feet through five large pipes to turn turbines that generate electricity. The water then flows back into the river below Cohoes Falls.
Photo courtesy Times Union Today, conventional hydropower stations generate nearly nine-tenths of all the renewable energy produced in New York. These two publicly-owned plants contribute far and away the largest share of New York's total hydroelectricity generation.
The remainder of New York's hydroelectricity comes from numerous small plants, a few owned by NYPA or municipal governments, some by institutions or industries, and many others by private companies whose business is selling electricity to the grid.
A enumeration found a total of conventional hydropower station units operating in the state.
Hydrokinetic systems Unlike conventional hydropower facilities, which require either a dam or a stream elevation drop to produce energy, newer in-stream or hydrokinetic systems place turbines below the surface of moving water -- in tidal flows, rivers, canals and even wastewater treatment plants.
Tidal in-stream hydrokinetic systems use pivoting turbines that capture energy for the majority of the day regardless of which way the tide flows. These systems are most productive in strong, fast currents, such as are found at the entrances to bays or in "narrows" between land masses. Inland hydrokinetic projects, on the other hand, use fixed turbines to provide round-the-clock electricity whenever streams are flowing.
While hydrokinetic energy is not yet operating at commercial scale, research, development, and demonstration are well along. Initiated inthe project completed prototype and six-turbine demonstration phases.
Photo courtesy of Verdant Power kinetic hydropower technology installed in New York City's East River was recently connected to the electric grid, and a proposal now under development would test the feasibility of hydrokinetic generation in the Niagara River.
Pumped storage systems Pumped storage hydroelectricity is the largest-capacity form of grid energy storage currently available. Pumped-storage units located at Blenheim-Gilboa and Niagara Falls-Lewiston use inexpensive off-peak electricity to pump water to a high elevation, from which it is released to generate power during times of peak demand.
Pumped storage facilities use more power for pumping than they generate during operation, but the electricity they produce helps to balance power grid loads and reduce the total cost of electric power.
The Future of Hydropower in New York While other forms of renewable energy, such as wind and solar, have greater potential for future expansion, hydro is expected to hold its own or grow slightly as a mainstay of renewable power generation in New York.
Upgrades of existing plants and adoption of high-efficiency small hydro technologies are enabling important incremental increases in the state's hydroelectric generating capacity. In future years New York could see a significant increase in hydropower from coastline installations if wave conversion or tidal in-stream power technologies prove technically and economically feasible.
Repowering existing generation facilities Installation of high-efficiency turbines, improvements to power station infrastructure and other upgrades can significantly increase the electricity output of older hydroelectric plants.The total Hydropower resource in Pakistan is estimated at about 50, MW.
Most of the resources are located in the North of the country, which offers sites for large scale ( MW to 7, MW) power . HydroWISE provides a comprehensive information system offering centralized access to data, tools, research, and services to support scientific knowledge, discovery, and decision-making for environmentally sound and sustainable hydropower generation in the United States.
Air Hydro Power Automation Technologies. Air Hydro Power Inc. Blankenbaker Parkway Louisville, KY The Venue.
The HYDRO Conference sessions and Technical Exhibition will take place in the modern and spacious AMBEREXPO centre, a short distance to the north of the old city of Gdansk.
Hydropower policy to be rethought in face of environmental concerns, indigenous sensitivities and public unease, says surprise government statement Published: 4 Jan Brazil raises hopes of a.
24 May The Hydropower Status Report offers insights and trends on the hydropower sector. Now in its fifth edition, the report provides information and statistics on installed capacity and estimated generation by country and by region, articles by leading energy and environment ministers, and results of a sector-wide survey on the future of hydropower.