Small Hydropower Systems: Energy Efficiency and Renewable ...

If you re considering building a smallhydropower system on water flowingthrough your property, you have a longtradition from which to draw your inspi-ration. Two thousand years ago, theGreeks learned to harness the power ofrunning water to turn the massive wheelsthat rotated the shafts of their wheat flourgrinders. And in the Hydropower heydayof the 18th century, thousands of townsand cities worldwide were located aroundsmall Hydropower sites. Today, Small Hydropower projects offeremissions-free power solutions for manyremote communities throughout theworld such as those in Nepal, India,China, and Peru as well as for highlyindustrialized countries, like the fact sheet will help you determinewhether a Small Hydropower system willwork for your power needs and whetheryour location is right for Hydropower tech-nology. It will also explain the basic systemcomponents, the need for permits andwater rights, and how you might be able tosell the excess electricity you generate. Uses of HydropowerIn the United States today, hydropowerprojects provide 81 percent of the nation srenewable electricity generation and about 10 percent of the nation s total elec-tricity.

accounts for the roughness of the stream channel (0.8 for a sandy streambed, 0.7 for a bed with small to medium sized stones, and 0.6 for a bed with many large stones). The result will give you the flow rate in cubic feet or meters per second. Stream flows can be quite variable over a year, so the season during which you take

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