SolarCity SolarZero Bedienungsanleitung

User Manual

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

TABLE OF CONTENTS

1. CONTACT INFORMATION........................................................................................................................................ 4

2. IMPORTANT SAFETY INFORMATION....................................................................................................................... 4

2.1 Warnings ................................................................................................ 4

3. ACTIONS IN CASE OF SYSTEM FAILURE................................................................................................................. 4

3.1 Actions in case of an earth fault ............................................................. 4

4. START-UP AND SHUTDOWN PROCEDURES ........................................................................................................... 5

4.1 System shutdown procedure ......................................................................... 5

4.2 System start-up procedure............................................................................ 7

5. INTRODUCTION TO THE SOLAR SYSTEM ..............................................................................................................10

5.1 The environmental benefits ......................................................................... 10

5.2 Why solarcity? ........................................................................................ 10

5.3 How it works........................................................................................... 10

5.3.1 Solar panels ......................................................................................................................................11

5.3.2 Battery enclosure...............................................................................................................................12

5.3.3 Framing .............................................................................................................................................12

5.4 Backup mode ......................................................................................... 12

5.4.1 Backup Generators ............................................................................................................................13

5.5 Monitoring with the solarZero app ................................................................. 14

5.5.1 Energy flow ........................................................................................................................................14

5.5.2 Total electricity use ............................................................................................................................14

5.5.3 Solar versus Grid usage......................................................................................................................15

5.5.4 Self-consumption of the solar power produced ...................................................................................15

5.5.5 System Performance ..........................................................................................................................16

5.5.6 Detail views .......................................................................................................................................16

5.5.7 System information and support.........................................................................................................18

6. GETTING THE MOST OUT OF THE SOLAR SYSTEM ................................................................................................19

7. MAINTENANCE OF THE SYSTEM...........................................................................................................................19

7.1 User maintenance.................................................................................... 19

8. SYSTEM PERFORMANCE .....................................................................................................................................20

9. WARRANTY...........................................................................................................................................................20

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

1. CONTACT INFORMATION

solarcity New Zealand Limited

PO Box 1509 / 190 Trafalgar Street

Nelson 7010

Customer care phone: 0800 11 66 55

Customer care email: customercare@solarcity.co.nz

Website: http://www.solarcity.co.nz

2. IMPORTANT SAFETY INFORMATION

Solar power systems are safe when operating correctly. However, there are potentially dangerous hazards associated

with some system components.

Please read the following warnings before operating the system.

2.1 Warnings

DC electrical

The solar array and storage battery system can contain potentially lethal voltages and should not be

altered, or opened, by anyone other than a registered electrician. The solar panels, and all wiring

between the panels and the DC disconnect, cannot be de-energised at any time during daylight hours.

It is important to note that the solar panel plug and socket connectors should not be disconnected

under load (when sunlight is shining on the panels).

Electrical wiring

This installation has been installed in accordance with AS/NZS wiring standards by a registered

electrician. Any unauthorised altering of the wiring risks high voltages being exposed, which could

cause death, or serious injury.

Heights

The solar panels on the roof of your property are situated at a height where serious injury could occur

if a fall happens. Please use appropriate access arrangements for inspection or cleaning purposes,

e.g. ladders with the necessary reach, and fall arrest systems. Roofing material may also be slippery

after rain, so please take care.

Glass

The solar panels are fragile to handling and high impact. Do not stand on the panels, for any reason.

If any damage occurs, please contact solarcity immediately.

3. ACTIONS IN CASE OF SYSTEM FAILURE

In an emergency, shut down the system, as outlined in Section 4, if it is safe to do so. For other issues, please refer to Section 8 on

‘System Performance’.

3.1 Actions in case of an earth fault

The Fault indicator LED will light up if an earth fault is present. This indicates potential danger. Do not touch any

conductive materials. Turn off all the DC isolators (these are insulated) and notify solarcity immediately. If there is an

indication of fire, you should immediately call the fire service.

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

Hybrid Inverter

AC switchbox

Battery box

Electronic

Monitoring

Unit (EMU)

DC switchbox

4. START-UP AND SHUTDOWN PROCEDURES

Under normal circumstances, the system should not need any intervention. The system may need to be shut down in an emergency, or

if your electrician needs to work on the wiring in your home. Follow these procedures if the system needs to be shut down or started.

4.1 System shutdown procedure

1. In the AC switchbox:

a. Turn off the EMU supply switch, the grid supply switch and the backup supply switch

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

2. In the DC switchbox:

a. Turn off the inverter-integrated DC switch

b. Turn off the PV DC isolator(s)

c. Turn off battery DC switch

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

4.2 System start-up procedure

1. Turn on battery DC isolator and press the battery on switch

2. Turn on the PV DC isolator(s)

3. Turn on the inverter-integrated DC switch

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

4. In the AC switchbox: Turn on the EMU supply switch, the grid supply switch and the backup supply

switch

5. In the solarZero switchboard: Switch all switches into the ON position

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

6. Router: Make sure the small microTIK router is connected to your internet router vie Ethernet cable

and powered on:

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

5. INTRODUCTION TO THE SOLAR SYSTEM

5.1 The environmental benefits

solarZero provides your home with 100% renewable electricity so you can reduce your carbon footprint.

5.2 Why solarcity?

solarcity is in business for a purpose: to help create a cleaner world and a sustainable energy future for New Zealand. Our aim is to

revolutionise the energy market and make a big difference in the fight against climate change.

solarcity is the only solar energy services company in New Zealand to be carboNZero certified. We have policies and programmes in

place to measure and minimise the greenhouse gases we generate. Any remaining emissions that can’t be avoided are offset by

purchasing verified carbon credits, making our business carbon neutral. Our carboNZero certification is independently audited by

Landcare Research every year.

The grid energy you purchase from Ecotricity is 100% carboNZero certified renewable electricity. Ecotricity only sources electricity from

wind, hydro and solar.

5.3 How it works

The grid-connected solar power system generates electricity directly from the sun’s energy for use in your home. The electricity which

is generated is used to power appliances, lights, the hot water cylinder and anything else that is drawing power at the time. The battery

system automatically detects when the solar system is generating surplus electricity and begins to charge. If the battery is fully charged,

and the supply from the solar system still exceeds your energy demand, electricity will be exported to the grid. Our buyback guarantee

ensures that when you sell solar power you’re paid the same rate it costs you to buy energy, excluding network charges and GST.

In discharge mode, the battery supplies power to your home when the solar system is not generating enough to meet your total

electricity needs. If your energy demands exceed the inverter’s capacity, or the battery is fully discharged, additional electricity is drawn

from the grid.

The battery is also charged by grid power when rates are low. That stored energy is then used to power your home when grid rates are

high. solarcity manages this for you.

If there is a grid outage, the inverter disconnects from the grid and switches to backup mode. It uses energy from the solar panels and

the battery to power pre-selected circuits in your home .

Grid Tied PV System with Battery Backup – User Manual

Version UM1142-PV-BT-v1.0 © solarcity 2019

Figure 1: How solar PV, battery storage and the grid work together to power your home

5.3.1 Solar panels

Solar panels are made up of interconnected photovoltaic cells, which convert

sunlight to direct current electricity. The solar panels are linked together to make

up an array. Optimal performance is obtained with direct sunlight; however, the

panels still generate electricity on cloudy days. Full, or partial shading, of the

solar panels by trees, other structures, or a build-up directly on the panels will

lead to a reduction in performance and should be avoided. If no light is shining

on the panels (for example at night, or under shaded conditions), then no power

will be produced.

Figure 2: Solar panel

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