3. GRID-TIE
+ Most financially economic, + commonly
used PV system today
+ No need for batteries
+ Seamlessly integrates with the utility grid
to provide constant power
+ Net metering options with utility provider
Tuesday, June 19, 2012
4. GRID-TIE, BATTERY BACK-UP
+ Provides constant, reliable power
+ No power outages when grid goes down
+ Integrates with the utility grid seamlessly
+ Net metering options with utility provider
Tuesday, June 19, 2012
5. OFF-GRID, REMOTE POWER
+ Operates without connecting to a utility grid
+ Requires battery back-up
+ Requires a secondary energy source (wind
power, generator, etc)
+ No net metering or incentives with utility
Tuesday, June 19, 2012
9. AMYRAM OFFICE BUILDING
GRID-TIE
• First commercial solar
array in Southeast Iowa
• Provides 30% energy on
meter
• 20.240 kW solar array
• Enphase Micronverter
technology
• 88 panels, 88 inverters
Tuesday, June 19, 2012
13. SUSTAINABLE LIVING CENTER
GRID-TIE, BATTERY BACK UP
• 10.81 kW photovoltaic
array
• 10 kW wind turbine
• 3 grid-tie SMA inverters
• Provides 100% of the
building’s energy needs
Tuesday, June 19, 2012
15. SKY FACTORY
GRID-TIE, NET-ZERO
• First net-zero solar
business in Iowa, 3rd
largest array in the state
• Provides 104% of the
building’s energy needs
• 54.050 kW solar array
• Enphase Micronverter
technology
• 230 panels, 230
Tuesday, June 19, 2012
20. ABUNDANCE ECOVILLAGE
GRID-TIE, BATTERY BACK-UP
• Provides 100% of the
village’s energy needs
with solar & wind
energy
• 7 kW solar array
• 10 kW wind turbines
• Battery bank stores
excess power &
provides energy on
cloudy days
Tuesday, June 19, 2012
22. MUEHLMAN COTTAGE
OFF-GRID, REMOTE POWER
• Renewable energy was
more affordable than
connecting to the utility
grid!
• 1.84 kW solar array with
battery bank
• 8 panels, 1 SMA inverter
• Designed to cover 100%
of daily energy needs
Tuesday, June 19, 2012
24. WHAT MAKES SOLAR SO AFFORDABLE?
+
Section 1630-ARRA (American Recovery
& Reinvestment Act)
+ MACRS(Modified Accreted Cost Recovery
System)
+ Utility rebates (Alliant Energy)
+ SF-2342-Iowa Solar Energy Tax Credit
Tuesday, June 19, 2012
25. SECTION 1603 ARRA
AMERICAN RECOVERY + REINVESTMENT ACT
• Available for both residential and commercial arrays
• Tax credit -30% of the gross system cost
• Credit can be used immediately or amortized over 10
years
Tuesday, June 19, 2012
26. MACRS
MODIFIED ACCELERATED RECOVERY SYSTEM
• Available for commercial installations only
• MACRS allows for more recovery earlier in the life of
the solar array. Meaning, you can write it off quickly.
• Tax credit-50% depreciation is given up front, the rest
is amortized
Tuesday, June 19, 2012
27. ALLIANT ENERGY
PHOTOVOLTAIC REBATE
• Available for commercial and residential arrays
• Commercial rebate: $1.00 per kilowatt generated in
the first year, up to $25,000
• Residential rebate: $1.25 per kilowatt generated in the
first year, no cap.
• Rebate is paid in cash, 30-60 days after system is
complete and rebate paperwork is submitted
Tuesday, June 19, 2012
28. SF-2342
IOWA SOLAR ENERGY TAX CREDIT
• Available for commercial and residential arrays
• Commercial tax credit: Up to $15,000, 50% of the
30% Section 1603 ARRA tax credit
• Residential tax credit: Up to $3,000, 50% of the 30%
Section 1603 ARRA tax credit
Tuesday, June 19, 2012
29. SAMPLE
RESIDENTIAL
Tuesday, June 19, 2012
ARRAYS
30. 2 KW SAMPLE ARRAY
TYPICAL SYSTEM COST: $7,827
EXPECTED PAYBACK: 2-3 YEARS
Alliant Energy rebate: $3,222
SECTION 1603 ARRA: $2,348.10
SF-2342: $1,174.05
NET COST, ALL YEARS: $1,082.85
Estimated annual utility savings: $447
Tuesday, June 19, 2012
31. 5 KW SAMPLE ARRAY
TYPICAL SYSTEM COST: $21,782
EXPECTED PAYBACK: 3-4 YEARS
Alliant Energy rebate: $8,055
SECTION 1603 ARRA: $6,534.60
SF-2342: $3,000.00
NET COST, ALL YEARS: $4,192.40
Estimated annual utility savings: $967
Tuesday, June 19, 2012
32. SAMPLE
COMMERCIAL
ARRAYS
Tuesday, June 19, 2012
33. 20 KW SAMPLE ARRAY
TYPICAL SYSTEM COST: $80,686
EXPECTED PAYBACK: 3-4 YEARS
Alliant Energy rebate: $25,000
SECTION 1603 ARRA: $24,205.80
SF-2342: $12,102.90
MACRS: $10,029
NET COST, ALL YEARS: $9,348.30
Estimated annual utility savings: $2,578
Tuesday, June 19, 2012
35. WE’VE GOT YOU COVERED EVERY STEP OF THE WAY.
Analysis & Design
Customized Proposal
Incentive & Rebate Application
System Installation
Performance Verification & Commissioning
Customer Support & Annual Maintenance Options
Tuesday, June 19, 2012
