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Right – This home uses a white roof and walls to reduce solar heat gain

Right – This home uses a white roof and walls to reduce solar heat gain
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Right – This home uses light tan stucco and white trim to reduce solar heat gain.

Right – This home uses light tan stucco and white trim to reduce solar heat gain.
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Right – This metal roof is being coated with a cool (high SRI) coating to reduce solar heat gain

Right – This metal roof is being coated with a cool (high SRI) coating to reduce solar heat gain
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Right – This model home for the Solar Decathlon competition incorporates vertical trellises and retractable exterior blinds to control solar heat gain.

Right – This model home for the Solar Decathlon competition incorporates vertical trellises and retractable exterior blinds to control solar heat gain.
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Right – This shrub has been pruned to allow views out the windows of this home while providing shade to walls, windows, and roof.

Right – This shrub has been pruned to allow views out the windows of this home while providing shade to walls, windows, and roof.
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Right – This tree shades walls, windows, roofs, and grounds for two adjacent homes.

Right – This tree shades walls, windows, roofs, and grounds for two adjacent homes.
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Right- Landscaping shades the entry on the south west corner of this hot dry climate building.

Right- Landscaping shades the entry on the south west corner of this hot dry climate building.
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Right: This house plan orients broad building surfaces away from the west and east, trees are used to shade the west and east, and large overhangs shade windows on the south wall

Right: This house plan orients broad building surfaces away from the west and east, trees are used to shade the west and east, and large overhangs shade windows on the south wall
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Roof penetrations are minimized to provide more space for PV panels.

Roof penetrations are minimized to provide more space for PV panels.
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Roof-mounted solar panels shade the roof below them (left), significantly reducing the roof’s surface temperature (thermal image on the right - yellow region under the panels is cooler than the red and white region on the exposed portion of the roof)

Roof-mounted solar panels shade the roof below them (left), significantly reducing the roof’s surface temperature (thermal image on the right - yellow region under the panels is cooler than the red and white region on the exposed portion of the roof)
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Roofing material and slope

Roofing material and slope
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Roofing membrane is installed over polyisocyanurate rigid foam insulation and insulation cover board that has been cut to fit around locations for blocking for the PV system rack

Roofing membrane is installed over polyisocyanurate rigid foam insulation and insulation cover board that has been cut to fit around locations for blocking for the PV system rack
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Rooftop portion of thermosiphon solar hot water system

Rooftop portion of thermosiphon solar hot water system
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Seven categories of exterior window shading attachments, identified on the DOE Efficient Window Coverings website.

Seven categories of exterior window shading attachments, identified on the DOE Efficient Window Coverings website.
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Shade trees planted on the east or west sides of a house are one of the most effective measures that can be taken to reduce heat gains

Shade trees planted on the east or west sides of a house are one of the most effective measures that can be taken to reduce heat gains
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Shed roofs provide more space for PV panels in this multifamily project near Denver, Colorado.

Shed roofs provide more space for PV panels in this multifamily project near Denver, Colorado.
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Sheer shades can provide very effective daylighting and glare control while maintaining a softened view to the outside

Sheer shades can provide very effective daylighting and glare control while maintaining a softened view to the outside
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Side by side comparisons of standard roofing colors (top row) and cool colors (bottom row) shows that solar reflectance (R) can be reduced significantly using special coatings with almost no change to the color

Side by side comparisons of standard roofing colors (top row) and cool colors (bottom row) shows that solar reflectance (R) can be reduced significantly using special coatings with almost no change to the color
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Small, battery-powered evaporative coolers can be appropriate for personal cooling in arid climates (only)

Small, battery-powered evaporative coolers can be appropriate for personal cooling in arid climates (only)
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Solar Arrays

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Solar bypass plumbing detail

Solar bypass plumbing detail
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Solar electric panels provide electricity for the home and an electric car charging station.

Solar electric panels provide electricity for the home and an electric car charging station.
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Solar panels can be hooked up to batteries to provide emergency power during outages and to help meet daily power needs after the sun goes down

Solar panels can be hooked up to batteries to provide emergency power during outages and to help meet daily power needs after the sun goes down
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Solar Shingles Installation