Laserfiche WebLink
Obstruclion of the Wind by a Building <br /> or Tree of HeigM(H) <br /> /� <br /> -'� o <br /> � <br /> � <br /> � <br /> �� �E 20 H � <br /> Thefartheryou <br /> place your wind <br /> and if your tower is guyed,you must requires,the excess is sent or sold to turbine from <br /> allow room for the guy wires. the utility. obstacies such <br /> as buildings or <br /> Whether the system is stand-alone Grid-mnnected systems can be practi- trees,the less <br /> or grid-connected,you will also need cal if the following conditions exist: turbulence you <br /> to take the length of the wire run will encounter. <br /> • You live in an area with average <br /> between the turbine and the load �ual wind speed of at least <br /> (house,batteries,water pumps,etc.) 10 mph(4.5 m/s) <br /> into consideration.A substantial <br /> amount of electricity can be lost as a • Utility-supplied electricity is <br /> result of the wire resistance—the lon- �Pensive in your area(about 10 to <br /> ger the wire run,the more electrio- 15 cents per kilowatt-hour) <br /> ity is lost.Using more ar larger wire • The utility's requirements for <br /> will also increase your installation connecting your system to its grid <br /> cost.Your wire run losses are greater are not prohibitively expensive <br /> when you have direct current(DC) . �ere�g��rentives for the <br /> instead of alternating current(AC). sale of excess electriaty or for the <br /> So,if you have a long wire run,it is P��ase of wind turbines. <br /> , advisable to invert DC to AC. <br /> Federal regulations(speci6cally,the <br /> Can I Connect My System Public Utility Regulatory Policies Act <br /> to the Utility Grid? of 1978,or PURPA)require utilities <br /> Small wind energy systems can be to mnnect with and purchase power <br /> connected to the electricity distribu- from small wind energy systems. <br /> tion system and are called grid- However,you should contact your <br /> connected systems.A grid-rnnnected utility before rnnnecting to their dis- <br /> wind turbine can reduce your con- �bution lines to address any power <br /> sumption of utility-supplied electric- 9uality and safety rnncems.Your <br /> ity for lighting,appliances,and utility can provide you with a list of <br /> electric heat.If the turbine cannot �1����for connecting your sys- <br /> deliver the amount of energy you tem to the grid.The American Wind <br /> need,the utility makes up the differ- Energy Associaflon is another good <br /> ence.When the wind system produces source for information on utility <br /> more electricity than the household �terwnnection requirements.The <br />