HomeMy WebLinkAboutPLANS 570 Darcy Dr Solar PV System 2020-09-08
Tuesday, September 8, 2020
Town of Estes Park
170 MacGregor Ave
Estes Park, CO 80517
re: Structural Analysis of project at 570 Darcy Dr, Estes Park, CO 80517
Dear Sir or Madam,
We have evaluated the solar racking and connections to the roof for the photovoltaic array to be installed using
the engineering design factors below.
ultimate wind speed V = 175 mph
wind exposure category = C
ground snow load = 66 psf
The PV system shall be flush mounted with no overhang. Attachments to the roof are to be spaced no more than
4’ O.C. Using the assumed engineering loads, we have determined that the design strength of all connections in
the solar racking system will be sufficient for this application.
The structural supporting members for the roof are 2x4” trusses 24” O.C. The roof framing has been determined
to be adequate for the required loads.
We do not assume responsibility for any construction flaws that currently exist or caused by other work trades.
Sincerely,
Anthony P. Boniface, PE
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HOUSE PHOTO
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SCALE: NTS
SCALE: NTS
SITE PLAN &
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Permits@solarips.com
PH# (303) 443-0115
1 SITE PLAN WITH VICINITY MAP
SCALE: 1/16" = 1'-0"PV-1
PHOTOVOLTAIC ROOF MOUNT SYSTEM
PROJECT SITE
2
PV-1
3
PV-1
25 x 400 SUNPOWER SPR-A400-G-AC (400W) MODULES
ROOF MOUNTED SOLAR PHOTOVOLTAIC SYSTEMS
PROJECT DESCRIPTION:ARRAY
LOCATION
GOVERNING CODES:
2018 INTERNATIONAL BUILDING CODE
2018 INTERNATIONAL RESIDENTIAL CODE
2018 INTERNATIONAL FUEL GAS CODE
2018 INTERNATIONAL MECHANICAL CODE
2018 INTERNATIONAL PLUMBING CODE
2018 INTERNATIONAL EXISTING BUILDING CODE
2018 INTERNATIONAL ENERGY CONSERVATION CODE
2017 NATIONAL ELECTRIC CODE
SHEET INDEX
PV-1 SITE PLAN WITH VICINITY MAP
PV-2 ROOF PLAN & MODULES
PV-3 STRING LAYOUT
PV-3.1 RACKING DETAIL
PV-4 ATTACHMENT DETAIL
PV-5 ELECTRICAL LINE DIAGRAM
PV-6 WIRING CALCULATIONS
PV-7 PLACARDS
PV-8 SAFETY PLAN
PV-9-12 EQUIPMENT SPECIFICATIONS
AHJ: TOWN OF ESTES PARK
UTILITY:TOWN OF ESTES PARK
ATTIC: YES
DESIGN SPECIFICATIONS
EXPOSURE CATEGORY = C
WIND SPEED = 175 MPH
GROUND SNOW LOAD = 66 PSF
(E) MAIN SERVICE PANEL
(IN BASEMENT)
SYSTEM SIZE: 10.00 kW DC STC
ARRAY AREA #1: 501.50 SQ FT
ROOF ACCESS POINT
ROOF #1
(25) SUNPOWER SPR-A400-G-AC
(400W) MODULES
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PV-2
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PH# (303) 443-0115
1
PV-2 SCALE: 1/8" = 1'-0"
ROOF PLAN &
MODULES
SUNPOWER
SPR-A400-G-AC
(400W) MODULES
NOTE TO INSTALLER:
FIELD ADJUSTMENTS CAN BE MADE TO THE LAYOUT OF THE ARRAY
ROOF PLAN AND MODULES ROOF LAYOUT NOTE
SOLAR PANEL LAYOUT IS CONCEPTUAL, BUT AS PROVIDED, CONFORMS WITH THE REQUIREMENTS
SET IN SHEET PV-2 CONTRACTOR MAY ADJUST PANEL LOCATION.
72
.
2
"
40"
LEGEND
- JUNCTION BOXJB
MSP - MAIN SERVICE PANEL
- TRUSSES
- CONDUIT
UM - UTILITY METER
- VENT, (ROOF
OBSTRUCTIONS)
MODULE TYPE, DIMENSIONS & WEIGHT
NUMBER OF MODULES = 25 MODULES
MODULE TYPE = SUNPOWER SPR-A400-G-AC (400W) MODULES
MODULE WEIGHT = 46.5LBS/21.1KG.
MODULE DIMENSIONS = 72.2"x 40" = 20.06 SF
UNIT WEIGHT OF ARRAY = 2.32PSF
(N) PV ROOF ATTACHMENT
@ 48" O.C. MAX.
(N) PV RAIL TYP.
(N) RAIL SPLICE (TYP.)SLC -AC PV LOAD CENTER
ROOF DESCRIPTION
ROOF TYPE COMPOSITION SHINGLES
ROOF ROOF
TILT AZIMUTH TRUSSES SIZE TRUSSES
SPACING
#1 20°172°2"X4" & 2"X6"24" O.C.
ARRAY AREA & ROOF AREA CALC'S
ROOF # OF
MODULES
ARRAY AREA
(Sq. Ft.)
ROOF
AREA
(Sq. Ft.)
ROOF
AREA
COVERED BY
ARRAY (%)
#1 25 501.50 760.95 65.90
(N) PV JUNCTION BOX
(E) MAIN SERVICE PANEL
(IN BASEMENT)
(E) UTILITY METER
(N) FUSED AC DISCONNECT
UD -UTILITY DISCONNECT
ROOF #1
(25) SUNPOWER SPR-A400-G-AC
(400W) MODULES
(N) AC PV LOAD CENTER
BACK OF RES
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ROOF # 1
TILT - 20 °
AZIM. - 172 °
FRONT OF RE
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CHIMNEY
DARCY DR
(N) NON-FUSED AC DISCONNECT
(N) UTILITY DISCONNECT
(E) POLE
ACD -FUSED AC DISCONNECT
ACD -NON-FUSED AC DISCONNECT
1 STRING LAYOUT
PV-3 SCALE: 1/8" = 1'-0"
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DATEDESCRIPTION
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PV-3
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1501 LEE HILL DR
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Permits@solarips.com
PH# (303) 443-0115
STRING
LAYOUT
DISCLAIMER: MATERIALS REQUIRED LIST FOR CONCEPTUAL USE ONLY THE
INTENT IS TO AID CONTRACTOR FOR ORDERING REQUIRED MATERIALS FOR
THE PROJECT. CONTRACTOR RESPONSIBLE TO VERIFY PRIOR TO SOLAR
EQUIPMENT ORDERING
BILL OF MATERIALS
EQUIPMENT QTY DESCRIPTION
SOLAR PV MODULE 25 SUNPOWER SPR-A400-G-AC (400W) MODULES
AC DISCONNECT 1 60A FUSED,(2) 50A FUSES,240V NEMA 3R, UL LISTED
AC DISCONNECT 1 60A NON-FUSED, 240V NEMA 3R, UL LISTED
UTILITY DISCONNECT 60A NON-FUSED, 240V NEMA 3R, UL LISTED
ATTACHMENT 82 ECOFASTEN GF1 L-COMP
RAILS 26 INVISIMOUNT RAIL-129.125" SECTION
RAIL SPLICE 18 SPLICE KIT
MID CLAMPS 38 MID CLAMPS / UFO
END CLAMPS 24 END CLAMPS / STOPPER SLEEVE
GROUNDING LUG 6 INVISIMOUNT GROUNDING LUG
CIRCUIT #1-9 MODULES
CIRCUIT #2-8 MODULES
CIRCUIT #3-8 MODULES
BACK OF RESI
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DARCY DR
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7"
2'-10"10'-9"10'-9"8'-11"
1 RACKING DIAGRAM
PV-3.1 SCALE: 1/4" = 1'-0"
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PV-3.1
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PH# (303) 443-0115
RACKING
DETAILS
(N) RAIL SPLICE (TYP.)
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PV-4
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9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
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PH# (303) 443-0115
ATTACHMENT
DETAILS
SUNPOWER INVISIMOUNT
RACKING SYSTEM
PV MODULE GROUNDING END/MID CLAMP
GF1-ECOFASTEN
L-FOOT
SEE (2/PV-4)
FOR ENLARGED
VIEW
ECOFASTEN FLASHING
COMPOSITION
SHINGLES ROOF
5/16" X 4" GRK
2-1/2" THREAD EMBEDMENT
SEALED WITH GEOCELL (OR EQUIV.)
5/16" X 3-1/2" SS LAG BOLT MINIMUM
2-1/2" THREAD EMBEDMENT
SEALED WITH GEOCELL (OR EQUIV.)
ATTACHMENT DETAIL (ENLARGED VIEW)
SCALE: NTS
ATTACHMENT DETAIL
SCALE: NTS
ATTACHMENT DETAIL1
PV-4 SCALE: NTS
ATTACHMENT DETAIL (ENLARGED VIEW)
SCALE: NTS
2
PV-4
COMP ROOF DETAIL
2"X4"
&
2
"
X
6
"
TRUS
S
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@ 24" OC.
2"X4"
&
2
"
X
6
"
TRUS
S
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@ 24" OC.
PV MODULES
SUNPOWER INVISIMOUNT RAIL TYP.
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PV-5
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9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
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PH# (303) 443-0115
ELECTRICAL
LINE DIAGRAM
(25) SUNPOWER SPR-A400-G-AC (400W) MODULES
(1) CIRCUIT OF 9 MODULES
(2) CIRCUITS OF 8 MODULES
(CONNECTED IN PARALLEL PER STRING)
ELECTRICAL LINE DIAGRAM1
PV-5 SCALE: NTS
SYSTEM SIZE: 10.00 kW DC STC
NOTE:
PV WIRE CAN NOT BE IN SAME CONDUIT
AT ANY OTHER LOAD (690.31)
WIRE/CONDUITE SCHEDULE
TAG #Description Conduit
type/size
Current carraying
conductor type/size
Neutral Conductor
type/size
Grounding
conductor
type/size
~1 -way
length(ft)Notes
1 PV ARRAY TO JUNCTION BOX N/A 6 X #12 DG X 1X #12 Bare Cu 40
2 JUNCTION BOX TO AC PV LOAD CENTER 3/4" EMT 6 X #12 THWN-2 X 1X #12 THWN-2 40
3 AC PV LOAD CENTER TO NON FUSED AC DISCONNECT 3/4" EMT 2 X #8 THWN-2 1 X #8 THWN-2 1X #10 THWN-2 10
4 NON FUSED AC DISCONNECT TO FUSED AC DISCONNECT 3/4" EMT 2 X #8 THWN-2 1 X #8 THWN-2 1X #10 THWN-2 10
5 FUSED AC DISCONNECT TO MAIN SERVICE PANEL 3/4" EMT 2 X #6 THWN-2 1 X #6 THWN-2 x 10
G
N
L2L1
M
BI-DIRECTIONAL UTILITY
METER 1-PHASE, 3-W,
120V/240V
TO UTILITY GRID
N
200A
LINE SIDE TAP
G
AC DISCONNECT:
60A FUSED, 50A
FUSES, 240V NEMA
3R, UL LISTED
5
AC DISCONNECT:
60A NON-FUSED,
240V NEMA 3R, UL
LISTED
G
(E) MAIN SERVICE
PANEL, 200A RATED,
240V (IN BASEMENT)
(E)
GROUNDING
ROD
UTILITY DISCONNECT:
200A NON-FUSED,
240V NEMA 3R, UL
LISTED
3
(N)
JUNCTION BOX
G
L1
L2
(N) AC PV LOAD
CENTER
L2L2
L1L1
L2L2
L1L1
20A
20A
G
N
N
G
15A
PVS6
8- MICRO-INVERTERS IN BRANCH CIRCUIT #3
L2L2
L1L1
20A
8- MICRO-INVERTERS IN BRANCH CIRCUIT #2
9- MICRO-INVERTERS IN BRANCH CIRCUIT #1
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DATEDESCRIPTION
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PV-6
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9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
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Permits@solarips.com
PH# (303) 443-0115
WIRING
CALCULATIONS
ELECTRICAL NOTES
1.) ALL EQUIPMENT TO BE LISTED BY UL OR OTHER NRTL, AND LABELED FOR ITS
APPLICATION.
2.) ALL CONDUCTORS SHALL BE COPPER, RATED FOR 600 V AND 90 DEGREE C WET
ENVIRONMENT.
3.) WORKING CLEARANCES AROUND ALL NEW AND EXISTING ELECTRICAL EQUIPMENT
SHALL COMPLY WITH NEC 110.26.
4.) DRAWINGS INDICATE THE GENERAL ARRANGEMENT OF SYSTEMS. CONTRACTOR SHALL
FURNISH ALL NECESSARY OUTLETS, SUPPORTS, FITTINGS AND ACESSORIES TO FULFILL
APPLICABLE CODES AND STANDARDS.
5.) WHERE SIZES OF JUNCTION BOXES, RACEWAYS, AND CONDUITS ARE NOT SPECIFIED,
THE CONTRACTOR SHALL SIZE THEM ACCORDINGLY.
6.) ALL WIRE TERMINATIONS SHALL BE APPROPRIATELY LABELED AND READILY VISIBLE.
7.) MODULE GROUNDING CLIPS TO BE INSTALLED BETWEEN MODULE FRAME AND MODULE
SUPPORT RAIL, PER THE GROUNDING CLIP MANUFACTURER'S INSTRUCTION.
8.) MODULE SUPPORT RAIL TO BE BONDED TO CONTINUOUS COPPER G.E.C. VIA WEEB LUG
OR ILSCO GBL-4DBT LAY-IN LUG.
AMBIENT TEMPERATURE SPECS
AMBIENT TEMP
RECORD LOW -23°
34°
CONDUIT HEIGHT 0.5" - 3.5"
ROOF TOP ADDER 56°
PERCENT OF VALUES
0.80
0.70
0.50
NUMBER OF CURRENT
CARRYING CONDUCTORS IN EMT
4-6
7-9
10-20
AC CONDUCTOR AMPACITY CALCULATIONS:
FROM ROOF TOP JUNCTION BOX TO AC PV LOAD CENTER
AMBIENT TEMPERATURE ADJUSTMENT FOR EXPOSED CONDUIT
PER NEC 310.15(B)(3)(c): + 0°
EXPECTED WIRE TEMP (°C): 34°
TEMP CORRECTION PER TABLE 310.15(B)(2)(a): 0.96
# OF CURRENT CARRYING CONDUCTORS: 6
CONDUIT FILL CORRECTION PER NEC 310.15(B)(3)(a): 0.80
CIRCUIT CONDUCTOR SIZE: 12 AWG
CIRCUIT CONDUCTOR AMPACITY: 30 A
AC CONDUCTOR AMPACITY CALCULATIONS:
AC PV LOAD CENTER TO NON FUSED AC DISCONNECT
AMBIENT TEMPERATURE ADJUSTMENT FOR EXPOSED CONDUIT
EXPECTED WIRE TEMP (°C): 34°
TEMP CORRECTION PER TABLE 310.15(B)(2)(a): 0.96
# OF CURRENT CARRYING CONDUCTORS: 3
CONDUIT FILL CORRECTION PER NEC 310.15(B)(3)(a): 1.00
CIRCUIT CONDUCTOR SIZE: 8 AWG
CIRCUIT CONDUCTOR AMPACITY: 55 A
REQUIRED CIRCUIT CONDUCTOR AMPACITY PER NEC 690.8(A&B):
1.25 X MAX AC OUTPUT CURRENT X # OF INVERTERS
1.25 X1.45X 25 = 45.31 A
DERATED AMPACITY OF CIRCUIT CONDUCTOR PER NEC TABLE 310.15(B)(16)
TEMP CORR. PER NEC TABLE 310.15(B)(2)(a) X
CONDUIT FILL CORR. PER NEC 310.15(B)(3)(a) X
CIRCUIT CONDUCTOR AMPACITY =
0.96 X 1.00 X 55 = 52.8A
SOLAR MODULE SPECIFICATIONS
MANUFACTURER
MODEL #
PMAX
PEAK OUTPUT POWER
MAX CONTINOUS OUTPUT CURRENT
MAX UNIT PER BRANCH CIRCUIT
NOM. FREQUENCY
400W
366VA
1.45
11
60HZ
SPR-A400-G-AC
SUNPOWER
MODULE DIMENSION 72.2"L x 40"W x 1.57"D (In Inch)
ROOF TOP TEMP 48°
TEMP-CORRECTION (AMBIENT TEMP).96
TEMP-CORRECTION (ROOF TOP TEMP).82
CONDUCTOR TEMPERATURE RATE 90°
MODULE TEMPERATURE COEFFICIENT OF Voc -0.29%
REQUIRED CIRCUIT CONDUCTOR AMPACITY PER NEC 690.8(A&B):
1.25 X MAX AC OUTPUT CURRENT X # OF INVERTERS
1.25 X1.45X 9 = 16.31 A
1.25 X1.45X 8 = 14.50 A
1.25 X1.45X 8 = 14.50 A
DERATED AMPACITY OF CIRCUIT CONDUCTOR PER NEC TABLE310.15(B)(16)
TEMP CORR. PER NEC TABLE 310.15(B)(2)(a) X
CONDUIT FILL CORR. PER NEC 310.15(B)(3)(a) X
CIRCUIT CONDUCTOR AMPACITY =
0.96X 0.80 X 30 = 23.04 A
AC CONDUCTOR AMPACITY CALCULATIONS:
FUSED AC DISCONNECT TO MSP
AMBIENT TEMPERATURE ADJUSTMENT FOR EXPOSED CONDUIT
EXPECTED WIRE TEMP (°C): 34°
TEMP CORRECTION PER TABLE 310.15(B)(2)(a): 0.96
# OF CURRENT CARRYING CONDUCTORS: 3
CONDUIT FILL CORRECTION PER NEC 310.15(B)(3)(a): 1.00
CIRCUIT CONDUCTOR SIZE:6 AWG
CIRCUIT CONDUCTOR AMPACITY: 75 A
REQUIRED CIRCUIT CONDUCTOR AMPACITY PER NEC 690.8(A&B):
1.25 X MAX AC OUTPUT CURRENT X # OF INVERTERS
1.25 X1.45X 25 = 45.31 A
DERATED AMPACITY OF CIRCUIT CONDUCTOR PER NEC TABLE 310.15(B)(16)
TEMP CORR. PER NEC TABLE 310.15(B)(2)(a) X
CONDUIT FILL CORR. PER NEC 310.15(B)(3)(a) X
CIRCUIT CONDUCTOR AMPACITY =
0.96 X 1.00 X 75 = 72 A
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PV-7
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9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
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Permits@solarips.com
PH# (303) 443-0115
PLACARD
WARNING: PHOTOVOLTAIC POWER SOURCE
1.
5
0
"
2.
0
0
"
2.
0
0
"
0.
7
5
"
1.
5
0
"
5.00"
BATTERY BACKUP
EMERGENCY DISCONNECT
1.75"
WARNING
Inverter Output Connection
Do Not Relocate This
Overcurrent Device
4.00"
WARNING: DUAL POWER SOURCE
5.00"
PV SYSTEM EQUIPPED
WITH RAPID SHUTDOWN
5.25"
REFLECTIVE PLAQUES
4.00"
REFLECTIVE STICKERS
STICKERS
3.00"
PV AC
COMBINER PANEL
PV SOURCE CIRCUITS
ONLY!
PV RAPID
SHUTDOWN SWITCH
CAUTION:
POWER TO THIS BUILDING IS ALSO SUPPLIED
FROM THE FOLLOWING SOURCES WITH
DISCONNECTS LOCATED AS SHOWN
AT:METER AND MAIN SERVICE PANEL
AC DISCONNECT
AC PV LOAD CENTER
CAUTION:
POWER TO THIS BUILDING IS ALSO SUPPLIED
FROM THE FOLLOWING SOURCES WITH
DISCONNECTS LOCATED AS SHOWN
AT:
CAUTION:
POWER TO THIS BUILDING IS ALSO SUPPLIED
FROM THE FOLLOWING SOURCES WITH
DISCONNECTS LOCATED AS SHOWN
AT:
2.
0
0
"
2.
0
0
"
1.
5
0
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2.
0
0
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2.
0
0
"
PLAQUES
4.00"
PV SYSTEM
AC DISCONNECT
4.00"
PV SYSTEM
DC DISCONNECT
Isc:
Imp:
Vmp:
Voc max:
4.00"
PHOTOVOLTAIC
SYSTEM
CONNECTED
PV
PRODUCTION
METER
4.50"
WARNING
Dual Power Sources
Second Source is PV System
PV AC Output: 36.25A
3.00"
(E) MAIN SERVICE
PANEL (IN BASEMENT)
(E) UTILITY METER
(N) AC PV LOAD CENTER
(N) FUSED AC DISCONNECT
(N) NON FUSED AC DISCONNECT
(N) UTILITY AC DISCONNECT
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DATEDESCRIPTION
REVISIONS
PROJECT NAME
PV-8
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PA
R
K
,
C
O
8
0
5
1
7
US
A
9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
BOULDER, CO 80304
Permits@solarips.com
PH# (303) 443-0115
SAFETY
PLAN
GARAGE
DRIVEWAY
3/4" EMT CONDUIT RUN
(N) PV JUNCTION BOX
(E) MAIN SERVICE PANEL
(IN BASEMENT)
(E) UTILITY METER
(N) FUSED AC DISCONNECT
(N) AC PV LOAD CENTER
BACK
O
F
R
E
S
I
D
E
N
C
E
FRON
T
O
F
R
E
S
I
D
E
N
C
E
DARC
Y
D
R
(N) NON-FUSED AC DISCONNECT
(N) UTILITY DISCONNECT
REV
SHEET NAME
SHEET SIZE
SHEET NUMBER
Signature with Seal
ANSI B
11" X 17"
DATEDESCRIPTION
REVISIONS
PROJECT NAME
PV-9
MI
C
H
A
E
L
B
R
Y
S
O
N
57
0
D
A
R
C
Y
D
R
,
E
S
T
E
S
PA
R
K
,
C
O
8
0
5
1
7
US
A
9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
BOULDER, CO 80304
Permits@solarips.com
PH# (303) 443-0115
EQUIPMENT
SPECIFICATIONS
REV
SHEET NAME
SHEET SIZE
SHEET NUMBER
Signature with Seal
ANSI B
11" X 17"
DATEDESCRIPTION
REVISIONS
PROJECT NAME
PV-10
MI
C
H
A
E
L
B
R
Y
S
O
N
57
0
D
A
R
C
Y
D
R
,
E
S
T
E
S
PA
R
K
,
C
O
8
0
5
1
7
US
A
9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
BOULDER, CO 80304
Permits@solarips.com
PH# (303) 443-0115
EQUIPMENT
SPECIFICATIONS
REV
SHEET NAME
SHEET SIZE
SHEET NUMBER
Signature with Seal
ANSI B
11" X 17"
DATEDESCRIPTION
REVISIONS
PROJECT NAME
PV-11
MI
C
H
A
E
L
B
R
Y
S
O
N
57
0
D
A
R
C
Y
D
R
,
E
S
T
E
S
PA
R
K
,
C
O
8
0
5
1
7
US
A
9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
BOULDER, CO 80304
Permits@solarips.com
PH# (303) 443-0115
EQUIPMENT
SPECIFICATIONS
REV
SHEET NAME
SHEET SIZE
SHEET NUMBER
Signature with Seal
ANSI B
11" X 17"
DATEDESCRIPTION
REVISIONS
PROJECT NAME
PV-12
MI
C
H
A
E
L
B
R
Y
S
O
N
57
0
D
A
R
C
Y
D
R
,
E
S
T
E
S
PA
R
K
,
C
O
8
0
5
1
7
US
A
9/8/2020INITIAL DESIGN 00
1501 LEE HILL DR
BOULDER, CO 80304
Permits@solarips.com
PH# (303) 443-0115
EQUIPMENT
SPECIFICATIONS