HomeMy WebLinkAboutPV2019-118 - Permit ApplicationZo�7-zoN ?lVM- 0
SUNPOWER®
Scope: New PV system installation, Busbar certification
PV CCPD: 50A
Customer: Gary Hesp
Address: 16 Bandol, Newport Beach, CA 92657
Utility: SCE
Dear Sir/Madam,
Due to age and maintenance conditions, the existing residential electrical panel label
specifications are no longer visible. A site surveyor performed site visit and obtained site
photos. I have reviewed the photo of the main service panel, and systems of similar panel of 20
space - 40 circuits max with label in the past and thus conclude:
The existing residential electrical main panel is Siemens— MC204OB1200ESC which has
bus rating of 200A and main circuit breaker of 200A (Center -fed). Main circuit breaker
for this solar PV system has been derated to 175A which satisfies 2016 CEC article 690
and 705.12(D) requirements.
Should you have any questions, please feel free to contact me at the information listed below.
Respectfully,
Chi Fung Leung, P.E.
Chifung.leung@sunpowercorp.com
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SUnPower Corporation I 77 Rio Robles I San Jose, California 95134
sunpowercom
SUNPOWE.R
TSA
9/12/2019
Attn.: To Whom It May Concern
re: Job GARY HESP: 16 BANDOL, NEWPORT BEACH, CALIFORNIA 92657
The following calculations are for the structural engineering design of the photovoltaic
panels.
After review, I certify that the roof structure has sufficient structural capacity for the
applied PV loads.
All PV mounting equipment shall be designed and installed per manufacturer's approved
installation specifications.
If you have any questions, don't hesitate to contact.
C 84486
Sincerely, * EXP 09/30/2021
Ali Hajihashemi, PE ,n,
Design Criteria:
Code: 2016 California Building Code
ASCE 7-10
Live Load: 20 psf
Ult Wind Speed: 110 mph
Exposure Cat: B
Ground Snow: 10 psf
2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850
SUNP /VE;R
Structrure Geometry
Date :9/12/2019
Job Code: GARY HESP
2of7
Mean Roof Height, hn =
23 ft
Eave Height, he =
18 ft
Buiding Length,L =
54 ft
Building Width, B =
51 ft
Module Area =
17.5 ftz
Roof
Roof 1
Roof Pitch (deg) =
18
Roofing Type =
Flat Tile
Sheathing Type =
5/8 OSB Sheathing
Wood Species =
Doug Fir -Larch #2
Wood Fb (psf) =
129600
Wood Fv (psf) =
25920
Wood E (psf) =
230400000
Wood Lag Withdrawal (Ib/in) =
266
Framing Type =
2x4 Truss
Framing OC Spacing (in.) =
24
Section Thickness, b (in.) =
1.50
Section Depth, d (in.) =
3.50
Section Modulus, Sx (in.A3) =
3.06
Beam Span (ft) =
6.58
Pen Trib Width (ft) =
2.55
Rail Span (ft) =
6.00
CD(Wind)=
1.6
CD (Snow) =
1.15
CLS =
1.15
CM =
1.0
Ct =
1.0
CL =
1.0
CF =
1.5
Cfu =
1.0
Ci =
1.0
Cr =
1.15
Mallowable_Wind (Ib -ft) =
729
Mallowable snow Ob -ft) =
524
2125 E Katella Ave #220, Anaheim, CA 92806 1 714.787.3850
Date :9/12/2019
Job Code: GARY HESP
U 1\ 1' 0 ►. I L.,R"' 3 of 7
Dead Load:
Flat Tile
9.0
5/8 OSB Sheathing
2.0
2x4 Truss @ 24" OC
0.6
Misc (Insulation etc)
1.0
Total Roof 1 DL
12.6 psf
Snow Load:
PV DL 2.8 psf
Roof 1
Roof—Dist—DL = 24
M_Roof_Dist_DL= 86
Def—Roof—Dist—DL = 0.0020
PV uni Dist_DL= 5
M PV uni Dist DL= 19
Def_PV_uni_Dist_DL=
10 psf
Snow Importance Factor, Ic =
0.0004
Tota l_uni
1.2
DL=
29
M_Total_uni
8
DL=
106
Def Total
uni
DL =
0.0024
Rail_Down_DL= /
Rail _M_DL= 31
Pens Down DL= 41
Pens Side DL = 13
Ground Snow Load, pg =
10 psf
Snow Importance Factor, Ic =
1
Thermal Factor, Ct =
1.2
Exposure Factor, Ce =
0.9
Flat Roof Snow, pf =
8
Roof 1
2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850
SUNP WERT'"
Slope Factore, Cs = 0.95
Sloped Roof Snow, ps = 7
uni Dist_S= 14
Muni Dist_S= 49
Def uni Dist S= 0.0011
Rail—Down—S= 1/
Module_Down_S = 7
Rail _M_S= 78
Pens—Down—S= 104
Pens Side S= 34
Wind Load:
Ultimate Wind Speed =
110 mph
Directionality Factor, kd =
0.85
Topographic Factor, kzt =
1
Velocity Pressure Exposure Factor, kz =
0.70
Velocity Pressure, qz =
18.45
Roof 1
External Pressure Up, GCp_1= -0.85
External Pressure Up, GCp_2 = -1.55
External Pressure Up, GCp_3 = -2.45
External Pressure Down, GCp = 0.45
Design Pressure Up, p_1= -15.68
Design Pressure Up, p_2 = -28.59
Design Pressure Up, p_3 = -45.19
Design Pressure Down, p = 16.00
Date :9/12/2019
Job Code: GARY HESP
4 of 7
uni_Dist_W_up
=
-31
M_uni_Dist_W_up=
-113
Def_uni_Dist_W_up=
-0.0026
uni_Dist_W_down=
32
Muni Dist_W_down
=
115
Def uni Dist W
down =
0.0026
2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850
S U N P ("")W ETm
Module_Up_W1= -16
Module_Up_W2= -29
Module Down W = 16
Rail_Up_W1= -40
Rail_Up_W2= -73
Rail _Down _W = 41
Rail_M_Up_W1= -180
Rail_M_Up_W2= -329
Rail M Down W = 184
Pens_Up_W1= -240
Pens_Up_W2= -438
Pens Down W = 245
Module Check (Service Level):
Rail Check (LRFD):
Date :9/12/2019
Job Code: GARY HESP
5of7
Roof 1 Down = 16 psf < 125 psf OK
Roof 1 Up z1 = 16 psf < 62 psf OK
Roof 1 Up z2 = 29 psf < 62 psf OK
Roofl 1.4D :
43 Ib -ft
<
548 Ib -ft
OK
Roofl 1.2D + 1.65 + 0.5W:
254 Ib -ft
<
548 Ib -ft
OK
Roofl 1.2D + 0.55 + 1.OW :
268 Ib -ft
<
548 lb -ft
OK
Roofl 0.9D + LOW (Up z1) :
153 Ib -ft
<
580 Ib -ft
OK
Roofl 0.9D + LOW (Up z2) :
301 Ib -ft
<
580 Ib -ft
OK
Attachment Check (ASD):
Roofl 1.OD+0.6W:
188 lbs
<
829 Ibs
OK
Roofl LOD+0.75*[1.OS+0.6W]:
229 lbs
<
829 Ibs
OK
Roof LOD + LOS :
145 lbs
<
829 lbs
OK
Roofl 0.6D+0.6W(Up z1):
120 lbs
<
681 lbs
OK
Roofl 0.6D+0.6W (Up z2) :
238 Ibs
<
681 Ibs
OK
2125 E Katella Ave #220, Anaheim, CA 92806 1714.787.3850
SUNPCITWERTPA
Attachment Lateral Check (ASD):
Date :9/12/2019
Job Code: GARY HESP
6of7
Roof 1 1.01) + 1.05 : 47 lbs < 533 lbs OK
Lag Screw Uplift Check (ASD): -
5/16" Lag Screw Withdrawl Value = 266 lbs
Lag Screw Penetration = 2.5 in.
Roofl 0.6D+0.6W(Up z1): 120 lbs < 665 lbs OK
Roofl 0.6D+0.6W(Upz2): 238 lbs < 665 lbs OK
Framing Check (ASD):
Roofl uni 1.01)+0.6W :
175 Ib -ft <
729 Ib -ft
OK
Roofl uni 1.01)+0.75*[1.OS+0.6W] :
195 Ib -ft <
729 Ib -ft
OK
Roofl uni 1.01) + 1.OS :
155 Ib -ft <
524 Ib -ft
OK
Roofl uni 0.61)+0.6W (Up z1) :
4 Ib -ft <
729 Ib -ft
OK
Seismic Check:
Stucco
10.0 psf
2x4 Studs @ 16"
2.0 psf
Gypsum
3.0 psf
Misc. (Insulation, etc.)
2.0 psf
Total Wall DL=
17 psf
Total Wall Area =
3780 ftA2
Total Wall W =
64260 lbs
Existing Weight
Total Roof DL =
13 psf
Total Roof Area =
2754 ftA2
Total Roof W =
34705 lbs
Existing Weight
PV Panel W = 46 lbs
Number of Panels = 29
Total PV W = 1320 lbs Additional Weight
2125 E Katella Ave #220, Anaheim, CA 92806 1 714.787.3850
Date :9/12/2019
I I ii\�{j F �A+' Job Code: GARY HESP
S U M P r [ 1 L' RTM 7 of 7
%increase = (Wexisting + Wadditional) / Wexisting = 1% OK
The increase in weight as a result of the solar system is less than 10% of the existing structure and therefore no
further seismic analysis is required.
Limits of Scope of Work and Liability
The calculations produced for this dwelling's assessment are only forthe proposed solar panel installation
referenced in the stamped plan set and were made according to generally recognized structural anlaysis standards
and procedures.
2125 E Katella Ave #220, Anaheim, CA 92806 1 714.787.3850