A shading analysis was performed on a building roof to design a 16 kW solar PV system for Avon. Extensive roof shading required a specific module layout. The system will include 72 220W PV modules, 3 6kW inverters, racking, wiring and other components for a total weight of 9437kg. A 25-year financial analysis estimates the system will generate over $923,545 in energy savings and have a positive cash flow of $93,460 after costs and maintenance over the lifetime.

1. www.upsolar.com
Upsolar Europe S.A.S China: Upsolar Co, Ltd. Hong Kong: Upsolar Co, Ltd.
15, Rue du Louvre, Silver Centre 19F, Rm 907, JSH001, Wing Tuck Comm Centre,
75001 Paris, France 1388 North Shan Xi Rd. Shanghai, China 177-183 Wing Lok Street, Hong Kong
Tel: +33 1 83 62 02 00 Tel: +86 21 6277 5477 Tel: +852 2973 8324
Fax: +33 1 83 62 02 01 Fax: +86 21 6277 5664 Fax: +852 2111 0693
Avon PV Energy System
Project Name: AVON Solar PV Energy System
Department: Systems Application
Focus Area: Design, Engineering, Procurement and Installation
Product/Process: 16 kW PV SYSTEM
Prepared By: Geof Moser & Glenn Gu
A complete shading analysis was performed using
computer aided design of the building occupied by
Avon (a more extensive site analysis can be
performed once the building is completed). Analysis
shows that approximately 16 kW of installed PV can
be placed on the roof structure of the building.
Extensive shading on the buildings roof has
determined the design format and layout of the PV
system. The 3D drawing provided in this document
should give a better understanding of this situation.
*Please understand that as there is space for more
solar modules to be placed on the roof, extensive
shading on the PV modules would render them
inefficient and cause excessive financial losses.
PV SYSTEM COMPONENTS # SPECS Weight
PV Module 72 220 Watt Poly (UP-M220P) 1368 kg
Inverter 3 6 kW (EHE-N6k) 189 kg
DC Disconnect 3 Heavy Duty Non-Fusible ST 3 Blade (1000 V DC) 15 kg
AC Disconnect 3 Heavy Duty Non-Fusible (ST 3 Blade) 15kg
Racking System 24 Ballasted (Non-Penetrating) 7800 kg
Other BOS * Wiring, Conduit, Hardware 50 kg
9437 kg
Ballasted Solar PV Design

3. www.upsolar.com
Upsolar Europe S.A.S China: Upsolar Co, Ltd. Hong Kong: Upsolar Co, Ltd.
15, Rue du Louvre, Silver Centre 19F, Rm 907, JSH001, Wing Tuck Comm Centre,
75001 Paris, France 1388 North Shan Xi Rd. Shanghai, China 177-183 Wing Lok Street, Hong Kong
Tel: +33 1 83 62 02 00 Tel: +86 21 6277 5477 Tel: +852 2973 8324
Fax: +33 1 83 62 02 01 Fax: +86 21 6277 5664 Fax: +852 2111 0693

5. Photovoltaic Energy System Summary 6/3/2010
System Comments: Avon 16 kW PV System
Climate File: C:Asia ClimatesShanghai.mdb
Module Type:
Number of Parallel Module Strings: Tracking Method: Fixed Slope and Azimuth6
Array Slope: 10.0012Number of Modules in Each Parallel String:
Total Number of Modules in Array: Array Azimuth: 0.0072
Wiring Feet Distance: 100.00
Wiring Inch Diameter:
YesMaximum Power Point Tracking:
0.13 95.00Efficiency of MPPT Device:
CEHE EHE-N6KInverter Type:
6,000Inverter Continuous Power:
UP-M220P
0.90 0.80Current Derate: Voltage Derate:
Month Load W/h Backup W/h Charging W/h PV W/h Sellable W/hSolar Fraction
0.42JAN 831,8566,696 3,906 2,7900
0.44FEB 889,9446,048 3,366 2,6820
0.50MAR 1,287,7026,696 3,357 3,3390
0.51APR 1,400,1166,480 3,150 3,3300
0.57MAY 1,418,0436,696 2,853 3,8430
0.58JUN 1,313,9786,480 2,709 3,7710
0.58JUL 1,379,3846,696 2,790 3,9060
0.55AUG 1,362,4206,696 3,015 3,6810
0.50SEP 1,172,4746,480 3,240 3,2400
0.46OCT 1,187,6236,696 3,609 3,0870
0.44NOV 828,1446,480 3,627 2,8530
0.42DEC 762,2656,696 3,906 2,7900
0.50YEAR 13,833,94878,840 39,528 39,3120

6. Photovoltaic Energy System Annual Energy Cost Analysis 6/3/2010
$0.150Alternative kWh Cost:
$0.150Backup kWh Cost:
$0.150Price for Sold kWh:
$5.90kWh Saved:
$2,075.09kWh Sold:
$2,080.99Cash Inflow:
$0.00Cash Outflow:
Net Annual Cashflow: $2,080.99
Month kWh Saved kWh Sold Cash Inflow kWh Backup Cash Outflow Net Cashflow
1
$124.78 $0.00 $125.20$0.42 $0.00$125.20JAN
$133.49 $0.00 $133.89$0.40 $0.00$133.89FEB
$193.16 $0.00 $193.66$0.50 $0.00$193.66MAR
$210.02 $0.00 $210.52$0.50 $0.00$210.52APR
$212.71 $0.00 $213.28$0.58 $0.00$213.28MAY
$197.10 $0.00 $197.66$0.57 $0.00$197.66JUN
$206.91 $0.00 $207.49$0.59 $0.00$207.49JUL
$204.36 $0.00 $204.92$0.55 $0.00$204.92AUG
$175.87 $0.00 $176.36$0.49 $0.00$176.36SEP
$178.14 $0.00 $178.61$0.46 $0.00$178.61OCT
$124.22 $0.00 $124.65$0.43 $0.00$124.65NOV
$114.34 $0.00 $114.76$0.42 $0.00$114.76DEC
$2,075.09 $0.00 $2,080.99$5.90 $0.00$2,080.99TOTAL

7. www.upsolar.com
Upsolar Europe S.A.S China: Upsolar Co, Ltd. Hong Kong: Upsolar Co, Ltd.
15, Rue du Louvre, Silver Centre 19F, Rm 907, JSH001, Wing Tuck Comm Centre,
75001 Paris, France 1388 North Shan Xi Rd. Shanghai, China 177-183 Wing Lok Street, Hong Kong
Tel: +33 1 83 62 02 00 Tel: +86 21 6277 5477 Tel: +852 2973 8324
Fax: +33 1 83 62 02 01 Fax: +86 21 6277 5664 Fax: +852 2111 0693
PV ENERGY SYSTEM LIFECYCLE FINANCIAL ANALYSIS
Cost Per Module
Balance of System Cost (Including Labor)
Total System Cost
$420.00 × 72 PANELS = $30,240
$1.80/WATT × 16 KW = $28,800
= $59,040
YEAR
WH PRODUCED
(0.8% ENERGY
LOSS/YEAR)
MAINTANCE/REPLACEMENT COST
CASH FLOW
(ANNUAL ENERGY COST CHANGE = 1%)
1 19,205,317 $2880.80
2 19,051,674.5 $2941.29
3 18,898,037 $3003.06
4 18,744,389.5 $3066.13
5 18,590,747 $3130.51
6 18,437,104.5 $3196.26
7 18,283,462 $3263.38
8 18,129,819.5 $3331.91
9 17,976,177 $3401.88
10 17,822,534.5 $3473.32
11 17,668,892 $3546.26
12 17,515,249.5 $5200.00 Inverter $3620.73
13 17,361,607 $3696.76
14 17,207,964.5 $3774.40
15 17,054,322 $3853.66
16 16,900,679.5 $3934.58
17 16,747,037 $4017.21
18 16,593,394.5 $4101.57
19 16,439,752 $4187.71
20 16,286,109.5 $4275.65
21 16,132,467 $4365.44
22 15,978,824.5 $4457.11
23 15,825,182 $4550.71
24 15,671,539.5 $4646.27
25 15,517,897 $4743.85
Total 923,545,308 $93,460.43