Enerstore Hybrid Remote Area Power Systems (RAPS)Individually designed and manufactured in Australia

www.hid-australia.com.au

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Battery bank

Consumers

Diesel Genset

Photovoltaic

PV InverterBattery Inverter

Energymanagement

MPP tracking

kWh

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Overview

The enerstore hybrid RAPS system provides off-grid reliable and secure power combining So-lar PV power with Hitachi’s LL (Lead Nano Carbon) state-of-the-art Advanced Valve Regulated Lead Acid (AVRLA) battery technology. By combining the system with a new or existing Diesel Generator(s), power security is guaranteed even during unexpected weather events resulting in low solar output and battery State of Charge (SoC).

Key activities

Maximizing return on investmentKey to delivering the right solution is understanding the client's expectations and current and future energy usage patterns. Optimal system sizing is a collaborative exercise, and it cannot be over stated, the importance of good client source information accuracy during the initial feasibility study.

GET DATA

SIZING

FINANCING

OPTIMUM RETURN

Load Profile

♦ List of appliances ◦ kW rating ◦ hrs / day "on" ◦ time "on" in 24 hr period ◦ seasonal variations♦ Energy Meter at Generator : KVA / kW / kWh♦ Install power analyser [temporary]

Generator

♦ Generator rating : kVA and 1ø or 3ø♦ Fuel consumption : Ltrs / day, Ltrs / month......♦ Fuel cost : $ / Ltr (excl. rebate)♦ Maintenance cost - parts : $ / year♦ Maintenance cost - labour : hrs / year

Client

♦ Model Solar yield in "PVsyst" : hourly kWh data ♦ Simulation of Solar and Load profile for differ-ent battery and solar array sizes : % Hybrid, % Diesel supply, battery life

♦ Generate commercial metrics: ◦ Hybrid CAPEX $ ◦ Hybrid OPEX $ / yr ◦ Diesel OPEX savings : $ / yr ◦ Total Cashflow savings : $ / yr

♦ Calculate for cash purchase ◦ NPV, IRR, payback years♦ Calculate for PPA, Lease rental, etc. ◦ annual cashflow savings comparing:- • 100% Diesel 'business as usual' • 10% typ. Diesel (with Hybrid) + annual Hybrid repayments

Battery

Solar

Analysis

HID

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DESIGN

PROCURE

INSTALL

OPERATION

SUPPORT

♦ Bill of materials ♦ Single line diagrams♦ Wiring diagrams♦ Equipment specifications♦ Operation and Maintenance manuals♦ Safety procedures♦ Electrotechnical calculations: cable sizing, fuse protection and discrimination, fault current, etc.

♦ Place purchase orders♦ Assemble and test equipment in container♦ Consolidate all equipment and material and deliver to site

♦ Installation of Hybrid container on prepared founda-tion♦ Install solar array, if supplied under scope♦ Connection of solar array, Diesel generator(s), and existing client main fuse board to Hybrid container

♦ Electrical test complete system and generate elec-trical saftey certificate♦ Configure all inverters and monitoring equipment♦ Perform full functional test and on-site training♦ System handover and documents

♦ 2 year support is included after handover. This includes; ◦ remote monitoring of system performance and where necessary adjustment of control settings. ◦ firmware updates ◦ site visit if any issues or after first year, an annual routine inspection included ◦ telephone support

HID

♦ Place purchase orders

Client

Overview

ORDER

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✓ 7 year battery warranty gives "peace of mind" from Hitachi, with 12 year option

✓ 17 year battery design life

✓ Typically 5 to 7 year system payback

✓ 70 to 90% reduction in Diesel operating costs (fuel and maintenance)

✓ Automatic operation, with maintenance free battery technology

✓ Diesel “off” operation possible for much of the year improving quality of life

✓ Remote control and monitoring subject to cellular or wi-fi being available

✓ Climate controlled interior protects your asset

✓ Manual Hybrid / Diesel changeover switch for fault or maintenance bypass

✓ Battery 100% recylable with income at end of life

✓ Australian built to latest AS standards by CEC accredited engineers

Scope & Benefits

Key Benefits & Features

ScopeEach enerstore hybrid system is factory assembled and tested in Australia to the latest Australia standards and Clean Energy Coucil guidlines by CEC accredited engineers. The pre-assembled system is easily deployed and greatly reduces site labour. Flexible scope of supply options are possible where the client wishes to contract other suppliers for part of the project.

Item Scope 1 Scope 2 Scope n Full Turnkeyenerstore Hybrid container x x x xCivil x x xSolar PV array xLV distribution connections x xDiesel Generator x

x = HID

supply

Item Inclusionsenerstore Hybrid container

climate controlled container, AC PV inverters, DC MPPT charge control-lers, DC & AC Hybrid distribution cubicles, Diesel/Hybrid Bypass switch, local and remote monitoring, BMS, Diesel interface, Hitachi LL Battery bank, cabling system for equipment interconnections

Civil container and ground mount solar foundations, cable trenching........Solar PV array Solar racking (roof or ground), Solar panels, Solar string cabling to con-

tainer, installLV distribution AC/DC cables and conduits external to the enerstore container, installDiesel Generator(s) supply and install of new sets

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Example configurations

enerstore Hybrid series E100 E150 E200 E250Diesel backup connec-tion (max passthru) < 72kVA < 72kVA

< 144kVA< 72kVA

< 144kVA < 90kVA

Client recommended daily load average

100kWh - 180kWh 200kWh - 300kWh 250kWh - 420kWh 350kWh -

450kWhSystem configurations

20Ft Enclosure one one one onePV system connection 30 to 50kWp 50 to 90 kWp 75 kWp to 125kWp 105 - 135kWpBattery capacity (net) / Voltage 100 kWh / 48Vdc 150 kWh / 48Vdc 200kWh / 48Vdc 250kWh / 120Vdc

Battery Inverter size options

24kVA30kVA45kVA

30kVA45kVA60kVA

45kVA60kVA90kVA

60kVA

PV Inverter size op-tions 30kVA - 45kVA 30kVA - 60kVA 40kVA to 81kVA 60kVA - 120kVA

Grid 1 & 3 phase 1 & 3 phase 1 & 3 phase 3 phaseRated AC Frequency 50Hz 50Hz 50Hz 50HzAC output (diesel off) 230Vac 230Vac 230Vac 210 - 240VacAC output (diesel on) 240Vac 240Vac 240Vac 240acHybrid System AC output fuse rating 100A / phase 100A to 200A /

phase 100A to 200A /

phase 125A / phase

Installation outdoorTemperature range external ambient range -10°C to +55°CClimate control internally controlled to range 25°C - 30°C [battery optimum]Standards General AS3000 (wiring), AS4509 (standalone power)

Safety AS62109 pt. 1 and pt. 2 (inverters), DR AS5139:2019 (Bat-tery), AS5033 (PV)

EMC EN/IEC/AS 61000 pt3 (domestic), pt.6 (industrial) Standard Warranty Hitachi battery: 7 years

PV Inverter: 5 yearsBattery Inverter: 5 years

Balance of System (cables, switchboards, workmanship, operation): 2 yearsExtended Warranty options

Hitachi battery: 12 years (+5% on battery purchase price)PV Inverters: 10, 15, 20 years extensions (price and terms on application)

Battery Inverters: 10 year extended warranty (price and terms on application)Balance of system: service & maintenance contracts available after year 2

1

1 1

Where Battery inverter is > 60kVA

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Diesel only Diesel + PV + BESS

Energy sources

Size of generator 60 kVA 60 kVASize of PV system - 65 kWpSize of BESS - 200 kWh netEnergy consump-tion 90,600 kWh / yr [248kWh / day]

Energy from Diesel 90,600 kWh / yr 10,700 kWh / yrEnergy from PV direct - 42,700 kWh / yr

Energy from BESS - 37,200 kWh / yrFuel consumption 33,500 ltr / yr 3,950 ltr / yrFuel savings - 29,550 ltr / yrDiesel run hours 8760 hrs / year 720 hrs / year

0 6 12 18 24

10

50

40

30

20

Example case study

Typical case study

100% Diesel

PV + BESS SUPPLY LOAD

DIESEL SUPPLY SOLAR PRODUCTION

SOLAR CHARGING BATTERY

DAILY AVERAGE FOR CALENDAR YEAR

TIME

PO

WE

R (k

W)

SOLAR ARRAY: 65kWp

LOAD AVERAGE: 248kWh/day

88% PV + BESS12%

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Hitachi Chemical - LL series (Lead Nano Carbon)Advanced Valve Regulated Lead Acid (AVRLA) battery

HITACHI ChemicalHitachi Chemical is an acknowledged leader in the field of industrial advanced valve regu-lated lead acid batteries for storage of renewable energy. The Hitachi LL industrial battery series has been developed under an extensive R&D program supported by the HITACHI central research laboratory. Using modern simulation technologies, HITACHI was able to de-sign an inner mechanical structure that would provide for even current flow and thus avoid-ing any hotspots inside the battery.

Hitachi warranty 7 and 12 year options

Service design life 17 years

Proven technology > 150MWh since 2001

Maintenance free operation

Partial State of Charge (PSoC) operation

100% Recycling with income 4,500 cycles @ 70% depth of discharge

High Efficiency dc-dc : 80 - 91% [depends Crate]

Made in Japan No fire hazard [ref. DR AS/NZS 5139:2019]

Why Hitachi LL series instead of Lithium IonA detailed comparison is beyond the scope of this document due to the many different Lithium chemistries, and multitude of manufacturers with varying specification claims. We provide a brief summary in the context of off-grid remote power.Off-Grid requirement Hitachi LL series Lithium IonHigh Reliability very high with proven track

since 2001 in wind and solar applications

unproven with only 3-4 year track record for larger instal-lations

Low complexity low with no individual cell balancing required and BMS function integrated in stand-ard inverter

high with cell level active bal-ancing circuits and complex BMS separate to inverter

Low fire risk non hazardous according to new standard AS/NZS 5139:2019

highest hazard CAT 1 ac-cording to new standard AS/NZS 5139:2019

Low capacity degradation Net Ah capacity (beginning of life) can be extracted at end of 17 year life

Net capacity reduced by at least 30% in first 8-10 years

Slow charging from solar 6-8 hours

ideal charge characteristic best suited for faster charg-ing

Requirements of renewable energy sources such as wind and PV demand a frequent change of current flow direction in the battery and partial state of charge operation.The HI-TACHI LL batteries have been specifically designed and tested for this type of application.

Key points

Requirements of renewable energy sources

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Specification Hitachi LL1500-W8

Model / Module LL1500-W8Nominal voltage 8 VDCCapacity (C10 ) 1500 Ah

SizeHeight 473 mm (+/- 3)Width 799 mm (+/- 3)Depth 512 mm

Weight (approx.) 485 kgPlastic Case / Cover UL94V-0Terminal type M12 BoltConnection 4 cells in series

Width Depth

Hei

ght

Operation

Ambient Temperature C-Rate Discharge

CurrentNominal Capacity

Effective Capacity DoD 70%

Effective DischargeEnergy

EffectiveDischarge Time

25°C 0.10 C 150 A 1,500 Ah 1,050 Ah 8,400 Wh 7.0 h

Discharge Capacity

Lifetime Characteristic

HID Australia Pty Ltd4/2 Kirkham Road WestKeysborough VIC 3173

mob. 0402 374522

Charge current nominalmaximum

150A300A

Discharge current nominalmaximum

150A600A

0.1C10A0.4C10A

Temperatures

Normal 5°C to 35°C recommended range

Limit 0°C to 40°C min. and max. operation

Stop 50°C stop operation / alarm

Life expectancy @ 25°C*

DoD 30% 40% 50% 60% 70%Cycles 10,500 7,875 6,300 5,250 4,500Discharge amount 4,725 x 103 AhYears 17

Mounting Orientation Horizontal (Terminals pointing sideways)

Life

time

(cyc

les)

2000

4000

8000

6000

10000

12000

Depth of Discharge (DoD)30% 40% 50% 60% 70%