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The Solar Path North Carolina Association of Higher Education Facilities Officers Annual Conference March 7-8 th , 2012. Photo by Roger Winstead. NC State University and Renewables. Solar Center Continuing Education DSIRE Database Advanced Energy FREEDM Energy Management
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The Solar PathNorth Carolina Association of Higher Education Facilities OfficersAnnual Conference March 7-8th, 2012 Photo by Roger Winstead.
NC State University and Renewables • Solar Center Continuing Education • DSIRE Database • Advanced Energy • FREEDM • Energy Management • Sustainability Office
Solar on NC State Campus 6 kW 40 kW 8 solar thermal panels 75.6 kW 3 kW 30 solar thermal panels + 112 pool heating collectors
Impact of Near Term Strategies 20% GHG reduction in 2015
ENERGY CONSERVATION 2015 Goal 2015 Goal = 30% reduction of energy use compared to 2003
PYRAMID OF CONSERVATIONTHE POWER OF ONE If behavior change can account for 5% of electricity reduction, how much $ will NC State save? Diagram: Minnesota Power: http://www.mnpower.com/powerofone/one_home/index.htm
Why solar? • Student demand • Research opportunities • Public perception • Clean, renewable energy • Climate Action Plan
Why not solar? • High relative cost for carbon reduction • Efficiency first • Perception: New technology • Perception: Onerous process
The Solar Path • Use this procedure when a viable project is identified • Contains many of the forms needed • Very similar across state funded organizations
Procedure Diagram • Insert diagram here
Frequently Asked Questions • Glare • Liability • Wind • Roof warranty
Solar Power for your University • Replicate our procedure • Contact us for more information
Intern Project: Site Suitability Survey • Description of the project
10 criteria • Rooftop Access • Roof Install Date • Roof Type • Roof Area • BTUs/ GSF • Impediments • Orientation • Pitch • Visibility • Shade
Impediments • Any object on the roof that impedes placement of a solar array either through • Physical presence • Casting of a shadow
High Impediments - Dabney 50%< Roof Impeded
Low Impediments - Witherspoon 25%> Roof Impeded
Orientation • Determined along the long axis of the building • Ideal Orientation is E-W
Visibility • Determined by Walk-By Site Assessment • Low = >25% of roof visible • Medium = 25% - 75% of roof visible • High = > 75% of roof visible
Shading • Extent to which objects cast a shadow on rooftops • Low: >25% Shaded • Medium: 25% - 75% Shaded • High: <75% Shaded
Rooftop Access • Availability of perimeter space for crane use • Low: If materials can’t be stored on roof or no reasonable crane access • Medium: 1-2 sides available • High: 3+ sides available
Low - lEazar hall • Materials can’t be stored on roof and no reasonable crane access points
High - mckimmon center • 3 crane access points
Roof Install date & Type • Date of most recent roof install • Type of roof currently installed
Epdm • EPDM rubber stands for Ethylene Propylene Diene Monomer (M-class)
Roof Area • Measured in ft^2
conclusion • This project was almost completely student led • There are several existing systems on NCSU’s campus • Rooftops evaluated based on 10 criteria
conclusion • John Galloway - jwgallow@ncsu.edu • Alex Crouse - ascrouse@ncsu.edu • Liz Bowen - Liz_Bowen@ncsu.edu