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HomeMy WebLinkAboutB17-0256 Baggaley Residence Solar Calculations Page 1 of 4 7/10/2017 P.O. Box 7627, Avon, CO 81620 | P: 970.306.4233 | F: 866.403.3485 | www.activeenergies.com Solar Installation Information Vendor: Active Energies Solar LLC PO Box 7627 Avon, CO 81620 (970-306-4233/info@activeenergies.com) Site: Baggaley Residence 4352 Spruce Way #5 Vail, CO. 81657 Equipment: Panels: 14 LG320N1C-G4 solar panels @ 320watts Inverter: 14 SolarEdge P320 Optimizers + 1 SolarEdge SE3800A-US inverter Mounting Equipment: Unirac racking system w/ DPW easy feet mounting feet Monitoring: SolarEdge Remote Energy Monitoring System System Layout: Single Panel = 5.38ft tall X 3.28ft wide Panel Arrangement: 2 rows of 3 and 2 rows of 4 with all panels oriented in the portrait position, mounted flush on the south facing roof Holy Cross electric meter located on the northside of unit 3. Production meter to be located on the south side of unit 5. Inverter to be located adjacent to production meter. Minimum Designed Temperature: -40°F Maximum Ambient Design Temperature: 140°F All AC wiring to be completed by a Colorado licensed master electrician All DC wiring to be overseen by NABCEP certified installer Holy Cross Meter 3’ fire code setback Production meter, inverter, and back-feed disconnect Page 2 of 4 7/10/2017 P.O. Box 7627, Avon, CO 81620 | P: 970.306.4233 | F: 866.403.3485 | www.activeenergies.com Calculations 4.48kW System Size (STC) Panels: 14 LG320N1C-G4 @ 320watts Inverter: 14 SolarEdge P320 Optimizers Inverter: SolarEdge SE3800A-US Inverter (1 string of 14 modules/optimizers) Array tilt angle: 26.57° Array azimuth: 220º (where 180º is south) Estimated annual power production: 4,612kWh Maximum PV System Voltage: 690.7 Voc = 40.9V/module 40.9V x 1 module = 40.9V Temperature correction factor 690.7(A) Temperature Coefficient (Voc) = -0.28%/°C (-65C° x (-.0028C°)) = .182% ((.182% x 40.9V) x 1 panels) + 40.9V = 48.3V Maximum PV Source Circuit (String) Current: 690.8 (A)(1) Isc = 10.05A 10.05A x 1.25 = 12.6A Maximum PV Output Circuit (Array) Current: 690.8 (A)(2) Max Inverter Input Circuit 13A Inverter Output Circuit Current: 690.8 (A)(3) 16A @ 240V Page 3 of 4 7/10/2017 P.O. Box 7627, Avon, CO 81620 | P: 970.306.4233 | F: 866.403.3485 | www.activeenergies.com Conductor Sizing Roof Pass Thru Box to DC Disconnect/Inverter: Max Inverter Input Circuit 13A 13A x 125% = 16.25A 690.8 (B)(1) #10 THWN-2 Table 310.16 40A (75ºC column) Conduit fill adjustment Table 310.15 (B)(2)(a) No Conduit Fill Temperature correction factor Table 310.16 40A x .77 = 30.8A From Inverter to AC Disconnect/Production Meter/Backfeed Point: Nameplate maximum continuous output current: 16A 16A x 125% = 20A #10 THWN-2 Table 310.16 40A (75ºC column) No Conduit fill adjustment Table 310.15 (B)(2)(a) No Temperature correction factor Table 310.16 Overcurrent Protection Devices 1 - 20A two pole breaker Backfeed Breaker Conductors may be oversized for Voltage Drop Page 4 of 4 7/10/2017 P.O. Box 7627, Avon, CO 81620 | P: 970.306.4233 | F: 866.403.3485 | www.activeenergies.com SolarEdge SE3800A-US Inverter w/ Integrated Disconnect NEMA 3R Max AC Output: 16A @ 240V With ARC Fault Protection & Rapid Shutdown compliant – adjacent to production meter DC Grounding Electrode Conductorsolid bare #6 Cu, per NEC 250.66(C) Service Panel Located in the home Line Diagram Baggaley Residence 4352 Spruce Way #5 Vail, CO. 81657 4.48 kW Utility Interactive Photovoltaic System Modules: 14 X LG320N1C-G4 Voc = 40.9V Isc = 10.05A Optimizers: 14 SolarEdge P320 1 String X 14 Modules/Optimizer Inverter: SolarEdge SE3800A-US Operating Voltage: 350V Operating Current: 9.53A Max System Voltage: 500V Max Output Current: 15A Tilt Angle: 26.57° Array Azimuth: 220° Production: 4,612kWh/yr Notes: - See Calculation Sheet for conductor sizing. - All conductors are copper unless otherwise noted. - Inverter listed (UL-1741) to de- energize upon loss of utility voltage per NEC 690.61. - Inverter has integral ground-fault protection per NEC 690.5 - 240V 1 Phase Service Panel rating of 150A (bus rating 150 amp and 150 Main disconnect) to accommodate 20A (PV) + 150A (Main) = 170A supply (up to 120% of connected power sources from installations per NEC 705(D)(2)(3)(b) Pass Thru Box Located on Roof Placard stating ”Photovoltaic System Connected” And map of production meter location Per Holy Cross requirements 2 #10 PV Wire 1# 6G Bare Cu Conductors in Free Air Array mounted on roof 14 LG320N1C-G4 Solar Panels14 SolarEdge P320 DC Optimizers 1 2 3 14... ~5' ¾” C EMT/PVC 3 #10 THWN-2 1 #10 G THWN-2 Backfeed Breaker 20A 2P 240v ~50' ¾” EMT/MC Cable 2 #10 THWN-21 #10 G THWN-2 20A Production Meter On south wall ~5' ¾” C EMT/PVC 3 #10 THWN-2 1 #10 G THWN-2 Net Meter Located in north side of unit 3                                                                                                                                                                                            !             !!!!!!                                                