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THE “PERFECT” ROOFS ARE GONE:Making Solar Viable for Commercial Rooftops

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TITLEIntroduction

The Importance of Structural Balance of Systems

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Industry research predicts growth of commercial segment by 21% in 2015*

• State programs • Community solar• Onsite corporate solutions

SunLink foresees ongoing challenges in expanding the commercial rooftop market segment

• Investor interest• Challenging rooftops

Overall market segment upside• Potential total addressable commercial rooftop market in the US: 125GW**

Overview

*Source: SEIA/GTM**Source: U.S. Census Bureau via PV Magazine

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Investor Interest

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Commercial turnkey system pricing has traditionally been 25-30% higher than utility scale.

Pricing

Source: SEIA/Morgan Stanley Research

2014 2015 2016 2017 2018 2019 2020$1.00

$1.25

$1.50

$1.75

$2.00

$2.25

$2.50

Turnkey System Pricing

Commercial

Utility

Axis Title

Tu

rnke

y In

stal

led

Pri

cin

g (

($/W

dc)

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Commercial project size has trended up, likely moving toward commercial fixed tilt. Market segment projections do not separate roof from ground.

Project Size

Source: SEIA/GTM

2010 2010.5 2011 2011.5 2012 2012.5 2013 2013.5 20140%

10%

20%

30%

40%

50%

60%

Commercial Project Size

1MW+

500-1000kw

100-500kw

10-100kw

<10kw

Sh

are

of

Co

mm

erci

al M

arke

t

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Rooftop Solution

33%

6%5%

7%

10%

5%

33%

Percent of Project Cost – Commercial Systems

Overhead & MarkupDesign, Engineering, Permitting, In-terconnectionDirect LaborStructural BOSElectrical BOSPV InverterPV Module

Focus on reducing direct labor costs (10% of total project cost) and Structural BOS (7% of total project cost) through product solutions. Reduce design and permitting (5% of total project cost) through product solutions and state initiatives.

Source: SEIA/GTM

SunLink’s focus to reduce project cost and improve investor interest.

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Challenging Rooftops

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OBSTRUCTIONS

Products must be more nimble to design around roof obstructions and maximize installed power capacity on each roof.

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EXTREME ENVIRONMENTS

For projects to succeed in high seismic, snow and wind regions while still meeting project economic objectives, the racking structure must be efficiently designed.

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WEAK ROOF DECKS

Roof Structure

Foot Position Adjustable

Panelized roofs often require systems to align with roof structure to meet building requirements.

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VARIED ROOF TOPOGRAPHY

Variations in roof slope, both constant and undulating, require innovative product solutions and connection details.

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“SOLAR-READY” ROOFS

California Energy Commission requires new buildings to have solar-ready roofs.

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Conclusion

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Progress continues toward expanding the actionable commercial solar rooftop market

• Product improvements• Project economics• Government regulations

Conclusion