3.42 k W Off-Grid Solar PV System v7 PDF

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Summary

Electrical Diagram for 3.4kW Off-Grid Solar System with Energy Storage. Energy storage consists of 16 Trojan Deep Cycle 6-V Lead-Acid Batteries....

Description

3.42 kW Bimodal Solar System

Main PV Array 12 x 285-Watt PV modules 2 Modules per String Note 1 +

#10 AWG USE-2 Note 2

AC Disconnect

M1 M2

30A PV DC Fused Disconnect Note 3

15A 15A

Array Disconnect

30A

15A

Charge Controller Disconnect 80A

+

15A

100A

1 x #8 AWG THWN 1 x #6 AWG THWN

Amp M 00.0

00.0 Amp M

Common Negative Amp M

Bank1 Energy 17.76 kWh

-

Bank2 Energy 17.76 kWh

-

Revised 11/2/2016

+

-

+ 6V

-

6V

+

-

6V +

-

6V +

-

6V +

-

6V +

-

6V +

-

6V

240V @20A

M3

BI

100 A Shunt/100 mV

G

48 V Battery System: 740 AH @ C20 Rate Energy: 35.52 kWh with fully charged batteries

Temp Switches

120V @40A

00.0

#4 AWG THHN

100 A Shunt 100 mV

100 A Shunt/100 mV

AC Disconnect

#4 AWG THHN

Amp M 00.0 Amp M 00.0

-

#4 AWG THHN

#10 AWG USE-2 2 x #8 AWG Note 2 THWN

+

L2

Main Battery Disconnect

#8 AWG THHN

L1

DC

-

-

GFDI

100 A Shunt

-VE

15A

6V Battery Specs @C20 Rate AH=370 Energy=2.22kWh

1

48V DC

48V Charge Controller

0.5A

80A

30A

Inverter Charger 48VDC, 4000W

80A

30A

15A

+

Main Service Panel

Solar Power Produced (kWh) = (M3-M1) + M2

Combiner Box

+

Grid

Net Meter M1 = kWh received from the grid M2 = kWh supplied to the grid

+

+

Revenue Grade Meter

+

-

6V +

-

6V +

-

6V +

-

6V +

-

6V +

-

6V

30A

Future Breakers

6V

+ Battery Bank 1

+ Battery 6V Bank 2

+

20A

30A

60A

30A

15A

20A

15A

15A

Standby Power Transfer Switch Critical Loads Panel Transfer Switch BI = Breaker Interlock...