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Renewable / Green Technologies
| Renewable or
Green Technologies seek to minimize the impact on the environment. They
can encompass lower energy use, efficient construction practises, and minimal
construction material use from remote locations. |
Wind
Turbines - Northland College
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The 20 kW wind Turbine at
Northland College supplies power directly to the residence hall or to the
utility. We monitored the energy output and operating characteristics.
An ideal wind turbine can capture 59% of the wind energy. At Northland
the wind turbine has provided as much as 50% of the electricity in an hour. |
 
Photovoltaic
Solar Power - Northland College
View Data Sample
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Three PV panels augment the
power supplied to the residence hall. One panel tracks the sun across the
sky each day. One panel adjusts its slope through out the year. One panel
is fixed. Single axis and dual axis tracking units capture more energy. |
Thermal
Solar Water Heating - Northland College
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Solar collectors preheat water
for the hot water needs of three apartments at the residence hall. Normally
water heating energy use is proportional to water use. With solar preheat
this relationship is disrupted. The graph below shows apartments with and
without solar preheat. |
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