Presentation on theme: "Do Now What types of renewable energy sources do you think are available in North Carolina? Can you think of any renewable energy sources that are near."— Presentation transcript:
1Do NowWhat types of renewable energy sources do you think are available in North Carolina?Can you think of any renewable energy sources that are near Charlotte?What is the biggest advantage of renewable energy over nonrenewable energy?What is the difference between traditional and alternative types of energy?*Extend screen rather than duplicating image on projector in order to view these notes while presenting
4Exit TicketWhat are two differences between traditional and alternative energy sources?2. List 1 traditional energy source-include 1 benefit & 1 cost3. List 1 alternative energy source
5Alternate Energy in North Carolina SWBAT evaluate sources of alternate energy in North Carolina
6Political Connection!NC is one of just a few states in the US that has a legislative renewable energy mandate. The NC Renewable Energy Portfolio Standard (REPS) requires that NC utilities must have a percentage of their retail sales come from renewable energy sources by specific dates – up to 12.5% by 2021. BLAH, BLAH, BLAH! By 2021, 12.5% of North Carolina’s energy must come from renewable energy sources!
7BIG QUESTION!What types of alternative energy would be most useful and most easily accessible in North Carolina.?Aspects to consider:Weather, climate, Natural Resources
8Solar Energy 2 Major Advantages 1. Solar energy’s “fuel’ is free 2. Solar energy is non-polluting*Instead of fossil fuels use photovoltaic (PV) panels to convert sunlight directly into electricity.
9North Carolina Solar House The North Carolina Solar House is a house on the campus of N.C. State University in Raleigh, NC. This house is run almost entirely off of solar energy.Virtual Tour of the NC Solar HouseClick on the “Virtual Tour” link (during slideshow) to open a virtual tour of the NCSU Solar House. After opening the page, you can click “enter home” and can take a tour of the home. Click on the “more” tab at the top of the page in order to see how the home usesDaily Tar Heel article on a solar farm in Hillsborough:More info on Hillsborough solar farm:Additional article on NC Solar:More resources:
10Solar Energy: Pros & Cons Once they are manufactured, solar panels produce no pollutionOnce solar panels are paid for, they continue to provide free energySolar energy production is very quiet, unlike energy created from fossil fuels and other forms of energyConsInitial cost of solar panelsWeather can affect effectiveness of solar panelsSolar panels only work during daylight hours. This means they can only create energy during daylight hours, and must use stored energy during dark hours
11Alternate Energy Sources Nuclear EnergyAlternate Energy Sources In nuclear fission, the nuclei of heavy atoms such as uranium-235 are bombarded with neutrons. The uranium nuclei split into smaller nuclei and emit neutrons and heat energy.“Split” hyperlink:Television commercial using mouse-traps and ping-pong balls (shows how nuclear fission works).“Smaller nuclei” hyperlink: (demonstrates fission more specifically)
12North Carolina State University Nuclear Plant Click on picture of reactor rods (during presentation mode) to open the NCSU Nuclear Reactor website, and then click “History of the reactor” at the bottom of the slide for more historical information. Youtube link is hooked to the “Cons of a nuclear plant.”History of the reactorCons from a nuclear plant
13Nuclear Energy: Pros & Cons Create very small amounts of pollutionVery reliable (require little to no outside fuel to operate)High levels of electric energy can be created at one nuclear energy plantConsRadioactive waste (must be monitored for 10,000 years after it is usedExample: ChernobylWhere was it?What happened?Threat of nuclear terrorism
14Alternate Energy Sources Wind EnergyAlternate Energy Sources In the next 50 to 60 years, wind power could be used to create between 5 to 10 percent of the country’s demand for electricity.
17Wind in North CarolinaHave students discuss (1 minute in table partners) where they would place wind turbines if they were creating a new company that was going to sell wind energy.
18Where are North Carolina’s Wind Turbines? Click on map during slideshow to go to live website:Go back to the previous slide and have students analyze if the location of these wind turbines makes sense, based on the wind levels listed on the previous map.Are there any near Charlotte?
19Wind Turbines: Pros & Cons Self-sustaining (does not require support from other resources or inputs)ReliableCauses little to no harm to plant and animal life on the groundConsNot 100% reliable (wind speeds must be at least 16 mph)Avian mortality (bird killers!)High initial cost
20Alternate Energy Sources Hydroelectric PowerAlternate Energy Sources Hydroelectric power is the power generated by falling water. The water held in a reservoir behind a dam is a form of stored energy that can be released through the dam to produce electric power. The strong water flow that results drives turbines and electric generators.
21Cowans Ford DamCowans Ford Hydro Station is located in Huntersville, N.C., approximately 20 miles north of Charlotte on Lake Norman. It is the largest conventional hydro station owned by Duke Energy.Cowans Ford Dam created Lake Norman, the largest man-made body of fresh water in North Carolina. The lake provides a dependable supply of water to Lincoln County and the communities of Davidson, Mooresville, Charlotte-Mecklenburg and Huntersville.Link to more information on Duke Energy’s website:Wikipedia:More facts about Lake Norman:
22Hydroelectric Power: Pros & Cons Completely independent of fossil fuelsCan be shut off immediately (thermal plants can take hours, nuclear plants can take weeks)Controls floodingVery few breakdownsConsDisrupts natural ecosystemsPlant decay that is created as a result of dams can cause release of greenhouse gasesExpensive to build
23NC Energy Brochure Front: NC Alternative Energy Resources Inside folds:Solar Farm-5+ sentence description + pictureNuclear reactor-5+ sentence description + pictureCowan’s farm damBack: Pros & Cons of each energy sourceArgument of which alternative energy source is best
24Resource Review Quiz 4.2 Powerpoint Write your answers in your notebook
25Exit Ticket!Name the four types of alternative energy sources that are available in North CarolinaGive an example of one specific renewable energy facility that is in North Carolina.Describe the pros and cons of one facility you read about.