All Windy
Wind energy is captured and turned into electricity by ________ _________
Wind Turbines
Most solar panels in urban areas are built on the _____ of buildings
roof
A typical wind turbine has _____ blades
3
solar
Wind turbine blades have (potential or kinetic) energy
kinetic
This is created ultimately due to an uneven heating of the earth by the sun.
wind
The system that converts sunlight directly into electricity is known as
photovoltaic
New York
Virginia
Vermont
Vermont
Wind power accounts for approximately _____ percent of electricity in the U.S
10%
Greenhouses that warm due to the sun is an example of _______ energy (active or passive)
passive
Warm air create ______ _______ systems
low pressure
Solar systems can last ______ to __________ years
25-30
The housing on top of a wind turbine is known as the ________
Nacelle
A typical wind turbine can last ______ to ________ years with regular service
20-25
Many batteries used in solar electric projects contain ___________ which must be mined from the earth
lithium
The Earths Rotation and how it influences weather patterns is known as the __________ effect
Most semiconductors in PV cells are made of _________
silicon
Solar systems are categorized as _______ or _________
active or passive
A wind turbine converts ______ energy into _________ energy
Gasses like Co2 which can contribute to climate change are known as _____ ______
greenhouse gasses
People have used wind power for over ________ years
5000
2000
1500
2000
Solar energy is known as _______ which means it is only available when the sun is shining
intermittent
A wind turbine uses wind to spin blades that power a __________ inside
generator
A group of turbines built to generate electricity on a large scale are known as __________ ___________
Wind Farm
What country leads in wind energy production?
China