Attachment 7 - Preliminary Solar Design

Page 2

PROPOSED PANEL LAYOUT
      30 ELM STREET, Cooroy
           4563 Queensland
                   Australia




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Page 3

SYSTEM DETAILS                        System size 1
–                                     99.55 kWDC (STC)
Your custom design
                                      Estimated annual production 2
                                      161,487 kWh

                                      Solar panel
                                      179 × 550W LONGi Solar Hi-MO5 - LR5-72HPH-550M
                                      2256 mm × 1133 mm · Monocrystalline · Datasheet · Warranty

                                      Solar panel
                                      2 × 550W JA Solar DeepBlue 3.0 - JAM72D30-550/MB/1500V
                                      2278 mm × 1134 mm · Monocrystalline · Datasheet · Warranty

                                      Inverter
                                      3 × GoodWe GW29.9K-MT · 29990W
                                      3 phase · 98.8% max ef ciency · Datasheet · Manual · Warranty

                                      System ef ciency 3
                                      89%



DAILY PRODUCTION PER
MONTH
–
How much electricity will my system
generate per day, on average?




UTILITY COSTS                         BEFORE SOLAR                               WITH SOLAR
–

Average monthly bill                  $3,750.52                                  $366.99       90%
                                                                                 First year average

Annual bill                           $45,006.29                                 $4,403.91       90%
                                                                                 Est. annual savings $40,602.38




INCLUDED SERVICES                     Warranty & Repair Services
–
                                      A 10 year workmanship warranty applies to this solar system installation. For
                                      other warranty information refer to the Warranty section below.




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Page 4

25 YEAR FINANCIAL
SUMMARY

Net present value of investment 4                                                          $5,532,768.83

The Net Present Value (NPV) is the present day value of all future cash
in ows minus the out ows. Since money is worth more in the present day
than in the future, all future cash ows need to be discounted by in ation. A
positive NPV indicates a good investment.

Discounted payback period 4                                                                     2 - 3 years

Similarly, the Discounted Payback Period also accounts for all discounted
future cash ows. The resulting period will typically be longer than a "simple
payback period" calculation.

Total return on investment 4                                                                       4131%

The Return on Investment (ROI) is another measure of the ef ciency of your
solar investment. Imagine you invested $100.00 today and received $300.00
in return. The ROI would be 200%.

Rate of return on cash invested 4                                                                   47.3%

The Rate of Return on Cash Invested (or Internal Rate of Return) is the
annual compounded rate of return that the cash ows bring based upon the
net cash invested in the year of installation. Think of it as the interest rate
that a term deposit would need to provide to match the returns on your solar
investment.




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Page 5

FINANCIAL ANALYSIS

Your historical electricity bills were used to help   In addition, the rst-year electricity bill savings you
size your solar system. Based upon the system size    can expect are provided together with a chart of
suggested, the expected electricity bill savings      the monthly solar system output you can expect.
over a 25 year period are provided below.




ANNUAL ELECTRICITY BILL
OVER TIME 4
–
     Electricity bill without solar
     Electricity bill with solar




MONTHLY ELECTRICITY BILL
COMPARISON 4
–
     Electricity bill without solar
     Electricity bill with solar




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Page 6

ENVIRONMENTAL
ANALYSIS

Your solar system will generate signi cant    Below is a summary of environmental bene ts
environmental bene ts. These come primarily   your solar system will provide.
from avoided power plant emissions.




TREES PLANTED
EQUIVALENT
–
2919 trees per year 5, 6

Each tree icon represents 300 trees




AVOIDED EQUIVALENT FUEL
–
48494 litres of petrol per year 5,
6


Each fuel can icon represents 4850
litres of fuel




AVOIDED COAL BURNT
–
55113 kg of coal per year 5, 6

Each coal lump icon represents 5520
kg of coal




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