Investment, Incentive and Energy Savings AnalysisA personalized solar electric analysis for: Prepared By:SunWise Homeowner

(931)287-9288Knoxville TN 37072

System Information Cost InformationProposed System Size: 4.5 kW Proposed system cost per nameplate watt $4.48 per/watt

Est. Annual System Production: 5,797 kWh/yr Monthly Financial Production $92 MonthAvg Monthly Electric Bill $150 First Year Financial Production $1,101 Year

Offsets % of Annual Electric Usage: 32.2% 11.30%YearOffsets % of Annual Electric Bill: 61% Payback/Return on Investment (Years) 11 years

kWh price (25 years) $0.10 /kWhkWh price (40 years) $0.06 /kWh

Total System Cost $20,160 $4.48 per/wattIncludes design, materials, labor, installation, permits & taxes

Federal Tax Credit -$6,048

TVA- Green Power Switch 1k incentive -$1,000

Net System Cost First Year (After incentives) $13,112 $2.91 /watt

This Quote is good for 30 days

Randy VelkerSimpleEnergyWorks

Randy@SimpleEnergyWorks.com

IRR (internal rate of return), compound annual rate of return, Pre- tax (non-taxable) 25 yrs

30% of all photovoltaic systems costs (materials & installation) will automatically be credited on the annual taxes (can be rolled over to next years taxes if a surplus credit)

TVA will award when the photovoltaic system is connected to the power grid.

We are not tax professionals. These tax laws are complex and there are many variables to take in to consideration. You will need to talk with your CPA to confirm the tax benefits that will work specifically for you and your business.

Payback/Return on InvestmentYEAR 0 1 2 3 4 5 6 7 8

Instal & Maint ($20,160) $0 $0 $0 $0 $0 $0 $0 $0

TVA Green Pwr Rate $0 $1,101 $1,125 $1,149 $1,175 $1,202 $1,230 $1,260 $1,291

TVA Green Pwr Switch $1,000 $0 $0 $0 $0 $0 $0 $0 $0

30% Tax Credit $6,048 $0 $0 $0 $0 $0 $0 $0 $0

TN Efficiency Grant $0 $0 $0 $0 $0 $0 $0 $0 $0

50% Dep and MACRS $0 $0 $0 $0 $0 $0 $0 $0 $0

Total Annual Cash Flow ($13,112) $1,101 $1,125 $1,149 $1,175 $1,202 $1,230 $1,260 $1,291

Cumulative Cash Flow ($13,112) ($12,011) ($10,886) ($9,737) ($8,562) ($7,360) ($6,129) ($4,869) ($3,578)

YEAR 9 10 11 12 13 14 15 16 17TVA Green Pwr Rate $1,324 $1,358 $0 $0 $0 $0 $0 $0 $0

Energy Bill Savings $0 $0 $898 $938 $980 $1,024 $1,070 $1,118 $1,168

Total Annual Cash Flow $1,324 $1,358 $898 $938 $980 $1,024 $1,070 $1,118 $1,168

Materials for grid tied Photovoltaic system (on house) including:($2,254) ($895) $3 $941 $1,921 $2,945 $4,015 $5,133 $6,301

YEAR 18 19 20 21 22 23 24 25Energy Bill Savings $1,220 $1,275 $1,332 $1,391 $1,454 $1,519 $1,587 $1,658

Total Annual Cash Flow $1,220 $1,275 $1,332 $1,391 $1,454 $1,519 $1,587 $1,658

Cumulative Cash Flow $7,521 $8,796 $10,128 $11,519 $12,973 $14,492 $16,078 $17,736

Environmental Benefits

235,650 lbs of burned coal (and the corresponding pollutants)37,971 lbs of fly ash waste (which contains heavy metals and low levels of radioactivity)

6,13616,661 lbs of S02 (which causes acid rain)

AssumptionsSolar Radiation estimates are based on historical weather charts for the region (can fluctuate 10% per year)

.5% power production loss per year

5% electrical cost increase per year

33% Federal Tax rate

kWh rate after year 10 drops to retail price

This Quote is good for 30 days

83.8% Derate factor for system efficiency

The primary benefits deal with the decreased fossil fuel (specifically coal) used to produce electricity. Over 25 years, this system is estimated to offset:

lbs of NOx (which creates smog)

Incentives and energy savings depend upon several factors that may not be represented in this analysis. Tax laws are complex (and subject to interpretation). A trusted tax professional should verify the figures provided. Simple Energy Works does not take responsibility for any future changes in tax law or other incentives.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

($15,000)

($10,000)

($5,000)

$0

$5,000

$10,000

$15,000

$20,000

Cummulative Cash FlowPurchase W/payback at $0

Years

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

($14,000)

($12,000)

($10,000)

($8,000)

($6,000)

($4,000)

($2,000)

$0

$2,000

$4,000

Net Annual Savings (purchase)

System OverviewTilt 15

Date: 02/08/13 Azimuth 211Size of system 4.5 kW

Customer Estimated output 5,797 kWh/yearSunWise Homeowner Annual payback $1,101 yearLocation 37072 Monthly payback $92 month

11.30% yearFree of Shading? 100%

Description of Work Price

18 Suniva 250 Modules OSP (or similar product)18 Enphase Inverters

Roof mount Racking OSP (or similar product)BOSInstallation

Notes:

Total $20,160

This Quote is good for 30 days

SimpleEnergyWorks

IRR (CARR) PreTax

Materials for grid tied Photovoltaic system (on house) including:

This quote includes a complete installation of the PV system to current NEC code. It includes all permits and fees and assumes that the structure upon which we are mounting does not need any physical modifications. It includes all necessary equipment for the correct functioning of the PV system including the production meter. All hardware is stainless steel (to inhibit corrosion), and the rails are made of extruded aluminum. All equipment is UL listed and in new condition with warranties intact. It does not include any extra fees (if there are any) that your utility charges for interconnection or for a solar system “fee.”

System Size 4.5 kWPrice Per Watt $4.48Total Price $20,160

Yes, we want this system installed! Get to it.

__________________________________________SunWise Homeowner

__________________________________________

3. $1000 non-refundable deposit is required to initiate the planning and design of this system.

6. The system will be installed within 60 days of receipt of the second payment.

8. All payments are due at final payment. 3% carrying charge per month for unpaid balances.

Signature (SimpleEnergyWorks)

1. All work shall be completed in a workman-like manner and in compliance with all building codes and other applicable laws.

2. Contractor shall obtain all permits necessary for the work to be performed. The electrical permit is included. The cost of any other necessary permits to be obtained will be passed on to the Owner (ie city permit- if any).

4. Once the TVA/Distributor interconnect agreement is approved, the engineering reports are completed, and any other permissions have been obtained (ie. Architectural committee permits, etc.) the first payment of 70% is due within 7 days (this may be extended if we are waiting to hear the results of grant applications).

5. Integrator/Contractor shall not be liable for any delay due to circumstances beyond its control including strikes, harsh weather conditions, casualty or general unavailability of materials. In the case of unavailability of materials the integrator has the option to substitute materials of equal or better quality.

7. Final Payment (balance) is due once the system is installed and the PV system has passed the final electrical inspection.

9. Zuercher Electric will connect the solar photovoltaic system to the green meter.10. This PV system comes with a 25 year limited production warranty on the modules, a 25 year warranty on the inverters, and a 10 year warranty on workmanship.11. All disputes hereunder shall be resolved by binding arbitration in accordance with rules of the American Arbitration Association.

12. As part of the agreement we ask that we have permission to photograph, video, and describe in detail your system installation. We also ask that we can invite the media to report on your system and that we can publish information on the internet, print, broadcast and other media.

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®

The Brilliance of Solar Made Sensible®

OUR PRODUCTS:

Monocrystalline Modules

OPTIMUS SERIES 60 cell

OPTIMUS SERIES 72 cell

Multicrystalline Modules

MV SERIES 60 cell

MV SERIES 72 cell

Monocrystalline Cells

Balance of Systems Solutions (BOSS)

OPTXXX-60-4-100 (60 CELL MODULE)

OPTIMUS SERIES: OPT 60 CELL MODULES

Engineering Excellence

Features

Quality & Reliability

1 2

2

SUNIVA OPTIMUS® SERIES MONOCRYSTALLINE SOLAR MODULES

PV yields sensible solar

Please recycle.

Headquarters

www.suniva.com

®

The Brilliance of Solar Made Sensible®

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3.0

4.0

5.0

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9.0

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Voltage (V)

Suniva OPT265: 265 Watt, 60

Cell Solar Module Current-Voltage (IV) as a Function of Insolation

(W/m2) and Temperature

1000 W/m2 800 W/m2 600 W/m2 400 W/m2 200 W/m2 1000 W/m2 @ 50 C

The electrical data apply to standard test conditions (STC): Irradiance of 1000 W/m2 with AM 1.5 spectra at 25°C.

The rated power may only vary by -0/+4.99Wp and all other electrical parameters by ± 5%

Suniva® reserves the right to change the data at any time. View manual at suniva.com. 1UV 90 kWh, TC 400, DH 2000. 2Tests were conducted on module type OPT 60. 3Tyco or MC4 - see sales representative.

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OPTIMUS SERIES: OPT 60 CELL MODULES

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ELECTRICAL DATA (NOMINAL)

DIMENSIONS AND WEIGHT

CHARACTERISTIC DATA

TEMPERATURE COEFFICIENTS

LIMITS

Welcome

enphase.com

to the next phase of solar

Maximum PerformanceEnphase Microinverters are installed beneath the solar modules on the roof, and they convert the maximum power from each module into standard AC electricity.

Features

World’s most efficient microinverter

Supports low-light and low-voltage operation

Innovative cabling for fast and easy installation

The Envoy Communications Gateway monitors the health and performance of each microinverter and solar module, and it sends this information to the system owner and installer via the Internet.

Features

Plug & Play setup

Communicates over existing electrical wires

Connects to standard broadband router

Advanced MonitoringThe Enlighten web-based software provides system owners and installers with detailed performance information and analytics about the solar system, as well as at-a-glance views and automated alerts.

Features

Included at no additional cost

Multiple viewing modes, including mobile

Automatically identifies and diagnoses issues

Enphase provides the world’s most

advanced inverter technology for

solar systems. Our solution

combines innovations in power

electronics, networking and

web-based software, to make solar

systems smarter and more efficient.

1 Enphase Microinverter

2 Envoy Gateway

3 Enlighten Software

System Overview

ENPHASE MICROINVERTER SYSTEM

enphase.com

»

» Susceptible to soiling, shading, and module defects

» All modules controlled independently

» Resilient to environmental factors

PERFORMANCE

» No high voltage DC wiring

» No risk of DC arc faults

» Automatically de-energizes when utility power is removed

» Requires high voltage DC wiring

»

» Cannot de-energize during daytime

» Flexible placement and sizing of systems

» AC wiring can run within building

» Inverters installed directly under module

»

» Requires DC conduits, combiners and disconnects

» Separate installation of inverter unit

SAFETY

AESTHETICS

STRING INVERTER SYSTEM ENPHASE ENERGY SYSTEM

“The Enphase system is, in some sense, the most important technology breakthrough solar has ever seen.”

Dan Kammen, UC Berkeley, Director of Renewable and Appropriate Energy Lab

RELIABILITY

» 25-year warranty

»

» Problems solved via remote troubleshooting

» 5-10 year warranty

»

» Problems require special service visit

E N P H A S E M I C R O I N V E R T E R M 2 1 5

The Enphase Energy Microinverter System improves energy harvest,increases reliability, and dramatically simplifies design, installation andmanagement of solar power systems. The Enphase System includes themicroinverter, the Envoy Communications Gateway, and Enlighten, Enphase’s monitoring and analysis software.

S M A R T

S A F E

P R O D U C T I V E

R E L I A B L E

- Maximum energy production- Resilient to dust, debris and shading- Performance monitoring per module

- System availability greater than 99.8%- No single point of system failure

- Quick & simple design, installation and management- 24/7 monitoring and analysis

- Low voltage DC- Reduced fire risk

M215-60-2LL-S22/S23M215-60-2LL-S22-NA/S23-NA (Ontario)

Dimensions (WxHxD) 17.3 cm x 16.4 cm x 2.5 cm (6.8” x 6.45” x 1.0”)*

Weight 1.6 kg (3.5 lbs)

Cooling Natural convection – no fans

Enclosure environmental rating Outdoor – NEMA 6 *without mounting bracket

Communication Power lineWarranty 25-year limited warrantyCompliance UL1741/IEEE1547, FCC Part 15 Class B

CAN/CSA-C22.2 NO. 0-M91, 0.4-04, and 107.1-01

Input Data (DC)

Efficiency

Mechanical Data

Features

Night time power consumption 46mW

Maximum output power 215W 215W

Nominal output current 1.0 A* 0.9 A*

Nominal voltage/range 208V/183V-229V 240V/211V-264V

Extended voltage/range 208V/179V-232V 240V/206V-269V

Nominal frequency/range 60.0/59.3-60.5 60.0/59.3-60.5

Extended frequency/range 60.0/59.2-60.6 60.0/59.2-60.6

Power factor >0.95 >0.95

Maximum units per 20A branch circuit 25 (three phase) 17 (single phase)

Peak inverter efficiency 96.3%

CEC weighted efficiency 96.0%

Static MPPT e�ciency (weighted, reference EN 50530) 99.8%

260WRecommended maximum input power (STC)

45VMaximum input DC voltage

22V – 36VPeak power tracking range

26.4V/45VMin./Max. start voltage

15AMax. DC short circuit current

10.5AMax. input current

MICROINVERTER TECHNICAL DATA

Output Data (AC) @208 Vac @240 Vac

16V – 36VOperating range

*Arms at nominal voltageMaximum output fault current 1.05 Arms, over 3 cycles; 25.2 Apeak, 1.74ms duration

Dynamic MPPT e�ciency (fast irradiation changes, reference EN 50530) 99.9%

Ambient temperature range -40ºC to +65ºC

Compatibility Pairs with most 60-cell PV modules

Operating temperature range (internal) -40ºC to +85ºC

05/17/2011Enphase Energy, Inc.201 1st Street, Petaluma, CA 94952877 797 4743 www.enphase.com Printed on 100 percent recycled paper.