Ken Mihalyov Mihalyov – – Project Project Coord Coord. & Science Teacher . & Science Teacher Ken th Grade Student Heath, 7 th Linc Heath, 7 Grade Student Linc th Grade Student Gabby Horvath, 7 th Grade Student Gabby Horvath, 7 th Grade Student Harris, 7 th Zoe Kempf Kempf- -Harris, 7 Grade Student Zoe th Grade Student Andrea Lane, 7 th Grade Student Andrea Lane, 7 th Grade Student , 7 th Billy Raley Raley, 7 Grade Student Billy th Grade Student Andrew Reed, 7 th Grade Student Andrew Reed, 7 th Grade Student Zach Rodriguez, 7 th Grade Student Zach Rodriguez, 7 th Grade Student , 7 th Elizabeth Strack Strack, 7 Grade Student Elizabeth
Wind Power: A Renewable Resource Wind Power: A Renewable Resource • A A natural resource natural resource qualifies as a qualifies as a • renewable resource if it is replenished renewable resource if it is replenished by natural processes at a rate by natural processes at a rate comparable or faster than its rate of comparable or faster than its rate of use by humans or other users. use by humans or other users. – Wind power is a renewable resource. No Wind power is a renewable resource. No – matter how many wind generators we matter how many wind generators we make, we will never run out of wind. make, we will never run out of wind. Definition by Wikipedia Wikipedia Definition by 2 2 2 2
How does it work? How does it work? • A wind turbine, which is installed on top of a A wind turbine, which is installed on top of a • tall tower, collect kinetic energy from the wind tall tower, collect kinetic energy from the wind and converts it to electricity that is compatible and converts it to electricity that is compatible with a school’ ’s electrical system. s electrical system. with a school • Our school would be served simultaneously by Our school would be served simultaneously by • the wind turbine and a local utility. If wind the wind turbine and a local utility. If wind speeds are below cut- -in speed (7 in speed (7- -10 mph) there 10 mph) there speeds are below cut will be no output from the turbine and all of the will be no output from the turbine and all of the needed power is purchased from the utility. needed power is purchased from the utility. 3 3 3 3
How does it work? How does it work? • As wind speeds increase, turbine output As wind speeds increase, turbine output • increases and the amount of power purchased increases and the amount of power purchased from the utility is proportionately decreased. from the utility is proportionately decreased. • If the turbine should produce more electricity If the turbine should produce more electricity • than required by the school, the extra electricity than required by the school, the extra electricity is sold to the utility. is sold to the utility. • All of this is done automatically. All of this is done automatically. • • There are no batteries to store electricity used There are no batteries to store electricity used • in this type of wind system. in this type of wind system. 4 4 4 4
What is required? • Zoning regulations Zoning regulations • Recent legislation permits wind turbines on – Recent legislation permits wind turbines on – towers not to exceed 150 feet in height. towers not to exceed 150 feet in height. • Wind Wind • Recommended wind speed for effective wind – Recommended wind speed for effective wind – energy generation is 6- -10 mph. 10 mph. energy generation is 6 • Space Space • Must be located on open land and height of – Must be located on open land and height of – tower should exceed nearby structures by a tower should exceed nearby structures by a minimum of 20 feet. minimum of 20 feet. 5 5 5 5
Carroll Commissioners OK Wind Turbine Use Carroll Commissioners OK Wind Turbine Use By Arin Arin Gencer Gencer | Sun reporter May 7, 2008 | Sun reporter May 7, 2008 By “The Carroll County commissioners unanimously The Carroll County commissioners unanimously • “ • voted yesterday to allow the installation of small wind voted yesterday to allow the installation of small wind turbines.” ” turbines. “The amendment to the zoning ordinance, believed to The amendment to the zoning ordinance, believed to • “ • be the first of its kind in Maryland, limits properties to be the first of its kind in Maryland, limits properties to no more than two "small wind energy systems" each no more than two "small wind energy systems" each consisting of a single tower not to exceed 150 feet in consisting of a single tower not to exceed 150 feet in height, County Attorney Kim Millender said.” ” height, County Attorney Kim Millender said. “The ordinance calls for the tower to be "set back a The ordinance calls for the tower to be "set back a • “ • distance equal to its total height plus an additional 20 distance equal to its total height plus an additional 20 feet" from the nearest state or county roadway, feet" from the nearest state or county roadway, overhead utility lines and property lines, among other overhead utility lines and property lines, among other restrictions.” ” restrictions. 6 6 6 6
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Average Ground Level Wind Speed Average Ground Level Wind Speed • We collected wind We collected wind • Average Average Location Location speeds from speeds from Wind Speed Wind Speed numerous sources. numerous sources. West M.S. West M.S. • These speeds range These speeds range Weather 3.87 mph Weather 3.87 mph • Station from 3.87 to 10.5 Station from 3.87 to 10.5 MPH. MPH. Winters Mill Winters Mill 6 mph 6 mph Weather Bug Weather Bug • Data sources are Data sources are • record over several record over several Skystream 10.5 mph Skystream 10.5 mph different time periods different time periods and would need to be and would need to be Maryland Dept. Maryland Dept. investigated more of Energy Wind 8 mph investigated more of Energy Wind 8 mph Map Map accurately to accurately to OVERALL OVERALL determine the exact determine the exact 7.1 mph 7.1 mph AVERAGE AVERAGE benefit of a wind benefit of a wind turbine. turbine. 8 8 8 8
This graph shows This graph shows the difference in the difference in wind speeds at wind speeds at different heights. different heights. From 30 feet to 150 From 30 feet to 150 feet there is 124% feet there is 124% increase in wind increase in wind power. The power. The maximum height of maximum height of a wind generator in a wind generator in Carroll County is Carroll County is 150 feet. 150 feet. Graph from U.S. Department of Energy Graph from U.S. Department of Energy 9 9 9 9
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Benefits of Wind Energy Benefits of Wind Energy • Save money Save money • – Free energy Free energy – – Maryland Net Metering Maryland Net Metering – • Grid connect Grid connect • – Low Maintenance Costs Low Maintenance Costs – • Provide power for all uses Provide power for all uses • • Help the environment Help the environment • – Creates no pollution Creates no pollution – – Offsets pollution created by utility company Offsets pollution created by utility company – – Annually offset 1.2 tons of air pollutants and Annually offset 1.2 tons of air pollutants and – 200 tons of greenhouse gases. 200 tons of greenhouse gases. • Potential back Potential back- -up power during outages up power during outages • 11 11 11 11
A grid- -connected wind turbine can reduce your connected wind turbine can reduce your A grid consumption of utility- -supplied electricity. supplied electricity. consumption of utility 12 12 12 12
West Middle Energy Expenditures West Middle Energy Expenditures MONTH KWh usage Cost MONTH KWh usage Cost April 2007 April 2007 92,900 92,900 $10,995.22 $10,995.22 May 2007 118,800 $14,196.60 May 2007 118,800 $14,196.60 June 2007 115,200 $13,766.40 June 2007 115,200 $13,766.40 July 2007 133,400 $15,443.70 July 2007 133,400 $15,443.70 August 2007 August 2007 149,400 149,400 $15,722.70 $15,722.70 September 2007 124,700 $15,102.38 September 2007 124,700 $15,102.38 October 2007 113,800 $14,000.75 October 2007 113,800 $14,000.75 November 2007 83,800 $10,076.84 November 2007 83,800 $10,076.84 December 2007 December 2007 82,100 82,100 $9,680.43 $9,680.43 January 2008 91,600 $11,041.07 January 2008 91,600 $11,041.07 February 2008 82,000 $9,997.85 February 2008 82,000 $9,997.85 March 2008 84,500 $10,180.50 March 2008 84,500 $10,180.50 April 2008 April 2008 100,600 100,600 $12,065.99 $12,065.99 Total 1,372,800 $162,270.43 Total 1,372,800 $162,270.43 http://www.energy.state.md.us/facts/renewable/wind/wind_calculator/OnlineWindCalc.asp or/OnlineWindCalc.asp 13 13 http://www.energy.state.md.us/facts/renewable/wind/wind_calculat 13 13
Benefits to CCPS Benefits to CCPS • Protection against rising energy costs Protection against rising energy costs • • Community role model Community role model • • Little or no maintenance cost Little or no maintenance cost • • Renewable Energy Credits Renewable Energy Credits • • Cross Cross- -curricular educational opportunities curricular educational opportunities • 14 14 14 14
Potential Drawbacks Potential Drawbacks • Initial cost Initial cost • • Noise Noise • • Birds/Bats Birds/Bats • 15 15 15 15
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