Advanced Energy Storagefor Solar Applications

Bornay - April 2020

About Discover

Battery Manufacturer Established 1949

Portfolio• AES LiFePO4 – Traction, Stationary

• Dry Cell – Traction, Stationary

• AES Tubular OPz - Stationary

• Discover AGM – Traction, Stationary

• Mixtech - Automotive

AES LiFePO4 Solar Product Offer

48V 6.65 kWh 130 Ah C/1

pn 42-48-6650

24V 2.8 kWh 110 Ah C/1

pn 44-24-2800

UL1973 Stationary

Wall Bracket

LYNK Gateway UN 38.3

AES LiFePO4 Applications

Off-gridWhole Home Backup

Micro Grid

Discover AES LiFePO4 battery enhances off-grid solar inverter charger system performance.

Discover AES LiFePO4 Product Features

LiFePO4 (LFP) is thermally stable with virtually no risk of thermalrunaway and able to charge and discharge at rates much higher than lead acid.

• AES is certified to UL 1973 for energy storage in stationary applications

• AES is certified to UN 38.3 for legal and safe transport

• AES is managed by a sophisticated BMS which continuously controls and logs all

electrical inputs, outputs and cell status: Soc, Voltage, Current, Temp, faults.

• AES Batteries are maintenance free.

SENTRY© Reliable, Safe, Certified

SENTRY

AES LiFePO4 batteries are SAFE and will PERFORM BETTER than the

lead acid battery you’re installing today

JUCE© Enhanced Run Time

AES LiFePO4 100% DoD battery ratings represent the

actual usable energy output available from a fully charged battery.

Lead-acid batteries for deep cycle solar applications are designed for 50% DoD, or less.

AES LiFePO4 will deliver a minimum 2x run-time and energy output over lead-acid

battery banks of the same capacity.

Installers will have to PURCHASE and INSTALL 2x the lead acid battery

capacity to match AES LifePO4 with 100% DoD. JUCE©

LiFePO4

AEON© Extended Service Life

AES LiFePO4 batteries are Maintenance Free and can Operate Continuously in a Partial State Of Charge.

AES LiFePO4 batteries Charge or Discharge at 100% of RatedCapacity with no impact on useable life expectancy.

AES LiFePO4 maintain > 90% of original capacity for 10x longer than lead-acid batteries (BCI-06).

10 Year, 38 MWh energy throughput WARRANTY to 60% of original capacity.

LiFePO4

Round Trip Efficiency (RTE) is the ratio of energy IN to energy OUT.

The lead-acid battery life time RTE is 65%

AES LiFePO4 batteries have a life time RTE of > 98%

- This is 33% Better than lead-acid batteries.

MISER© High-Efficiency

MISER saves a MINIMUM of 33% or 3.0 kWh in energy cost

for every 10 kWh of storage used.

LiFePO4

RAPI-CHARGE© Fast Charging

Installers can design new systems using SMALLER ARRAYS.

Homeowners can dramatically REDUCE DIESEL CONSUMPTION.

RAPI-CHARGE technology enables AES LiFePO4 batteries to handle high charge current requirements common to off-grid applications.

• 1C continuous charge

• Linear scaling of 1C charging: 2x with 2 batteries, 3x with 3, 4x with 4...

AES LiFePO4 batteries fully recharge:

• 5x faster than new lead-acid batteries , 10x faster than aged lead-acid batteries

• 2x faster than C/2 rated lithium batteries

RAPI-CHARGE© Fast Charging

“We ran the generator for a total of 90 hours, under one hour per day. In past years, the system would require the generator to run for 4 - 6 hours every second or third day.“

RUSH technology enables AES LiFePO4 batteries to handle high discharge and surge

current requirements common to off-grid applications.

• 1C continuous discharge

• 2.3x peak current handling

• Linear scaling of 1C discharging and 2.3C peak current handling:

2x with 2 batteries, 3x with 3, 4x with 4...

RUSH© Surge Power

AES batteries with RUSH allow you to RUN THE SAME LOADS

you could with lead-acid …and run the loads other Lithium batteries cannot.

PARALLEL-POWER© Scalable Energy Storage

AES LiFePO4 energy storage capacity scales

• Parallel Closed Loop with AEbus – 133 kWh (20x 6.65 kW) per LYNK Gateway

• Parallel Open Loop without AEbus – Unlimited kWh

Linear Scaling of Peak, Charge and Discharge current capacities

2x continuous and 2x peak current with 2 batteries, 3x with 3, 4x with 4

AES LiFePO4 with PARALLEL-POWER provides system designers with

EASILY-SCALABLE ENERGY STORAGE capacity sized for any project. PARALLELPOWER

Battery System Sizing

Minimum Battery Configuration for Off-grid Inverter Application

Design To Support: Autonomy, Peak AC Surge, Continuous AC and Full DC Charge Amps

1. AUTONOMY: Calculate Load Energy in kWh and Divide by 6.65 kWh = Number of Batteries (at 100% DoD)

2. PEAK AC SURGE: Convert Inverter AC Surge to DC Amp and Divide by 300 A = Number of Batteries

3. CONTINUOUS AC: Convert Inverter AC Continuous to DC Amp and Divide by 130 A = Number of Batteries

4. FULL CHARGING: Divide Inverter Continuous Charge DC Amp by 130 A = Number of Batteries

Use Highest Rounded Up Number of (1 – 4 above) batteries to support full capabilities of selected inverter system

• Multiply by number of inverters in parallel.

• For 3 phase system multiply by 3 and then multiply by number of clusters in parallel.

• AC to DC conversion: AC Watts divided by inverter efficiency, divided by 48V = Amp DC

AES 42-48-6650 6.65 kWh Useful 100 % DODPeak Power 300 ADischarge / Charge 130 A

Configuring AES LiFePO4 Batteries

Networking AES batteries – Communication and Balancing

• Daisy chain CAT5 cable from battery to battery – terminate ends

• Y-Splitter and termination plugs are included with each battery

Configuring the Inverter – Voltage, Current, Cut-off, etc.

• Closed Loop – Settings are Automatic with LYNK Gateway

• Schneider, SMA, Victron, Studer

• Open Loop – Program ANY inverter charger, per Application Note

• Outback, Magnum, Morningstar, MidNite and more…

Open-Loop with AES LiFePO4 BatteriesAES LiFePO4 Batteries network for open-loop performance with Outback Radian

• Battery settings are manually programed at installation as a custom lead-acid (lead-acid replacement)

• CAT5 cable connects battery to battery communication

(-)

(+)

Configuring AES LiFePO4 BatteriesAES LiFePO4 Batteries network for closed-loop performance with Schneider XW+ / SW / MPPT

• Battery settings are automatically sent in real-time to XW+ / SW / MPPT and displayed by ComBox / SCP

• CAT5 cable connects battery to battery as AEbus and then CAT5 cable connects AEbus to Xanbus

Configuring AES LiFePO4 BatteriesAES LiFePO4 Batteries network for closed-loop performance with Victron

• Battery settings are automatically sent in real-time to Quattro, MultiPlus, SmartSolar, BlueSolar, CCGX (Venus GX)

• CAT5 cable connects battery to battery as AEbus and then CAT5 cable connects AEbus to LYNK (internal termination)

• LYNK connects to VE.can port on CCGX

• VE.Bus connects inverter to CCGX

• VE.Direct connects charge controller to CCGX

VE.Can VE.Bus

VE.Direct

Closed-Loop with AES LiFePO4 BatteriesAES LiFePO4 Batteries network for closed-loop performance with Studer

• Battery settings are automatically sent in real-time to Xtender, VarioString , VarioTrack and RCC

• CAT5 cable connects battery to battery as AEbus and then CAT5 cable connects AEbus to LYNK (internal termination)

• LYNK connects to Xcom-CAN device

• Xcom-CAN connects to inverter

• Xcom-CAN connects to RCC controller

Xcom-CAN Xcom-CAN Xcom-CAN

Configuring AES LiFePO4 BatteriesAES LiFePO4 Batteries network for closed-loop performance with SMA

• Battery settings are automatically sent in real-time to SMA Sunny Island

• CAT5 cable connects battery to battery as AEbus and then CAT5 cable connects AEbus to LYNK (internal termination)

• LYNK connects to Sunny Island ComSyncIn port

ComSyncIn ComSyncOut

LYNK Communication Gateway

Battery Settings are Automatically Programed to devices.

State of Charge for AES LiFePO4 Batteries is displayed in real time by LEDs

and Communicated to Off-grid Inverters and Solar Charge Controllers.

Remotely Monitor the aggregate SoC for a string of AES LiFePO4 batteries

and Data-log Multiple Sites using the data monitoring services offered by

off-grid inverter systems

LYNK Enables Closed Loop Communication of SoC

with the world’s best off-grid inverters and solar charger controllers LYNK

Schneider

SMA

Victron

Studer

AES LYNK© Dynamic Performance

‘Unlock the full potential of AES LiFePO4 Batteries by

dynamically managing the charge and discharge

configurations of the world’s best off-grid systems.

Turn a good system into a great one with up to 25%

improvement in 0% to 100% SoC recharge time’.

*To the extent that the power electronics are capable of this function.

Schneider / SMA / Victron / Studer

Field Service for AES LiFePO4 Batteries

AES Dashboard - PC Software for Technicians

USB access to battery:

• Cell data

• kWh history

• Fault logs

• And more…

Field Replaceable

Remove lid to access and replace:

• Fuse

• BMS

Online Energy Storage Cost Comparison Tool

www.discoverbattery.com/solar

Lead Acid Replacement

Application

• Off-grid home

Requirement

• Improve system efficiency, upgrade from old

Lead Acid battery 750 Ah (36 kWh)

System

• 3x AES 42-48-6650 (19.95 kWh)

• Sunny Island 6048, Sunny Boy 2000

• Morningstar 60-600 MPPT, 60-150 MPPT

• 8 kW Generator

Project

• Location: Lasqueti Island, BC Canada

• Client: Ezra and Melinda Auerbach

Off-grid Lead Acid Replacement

In May 2017, the Auerbachs decided to upgrade their thirteen

year old Lead Acid batteries to lithium batteries seeking better

charging and discharging efficiency. Their batteries were

replaced with Discover AES LiFePO batteries with over 95%

two-way efficiency. It didn’t take them long to notice the

increase in efficiency. “We ran the generator for a total of 90

hours, a shade under one hour per day.” In past years, the

system would require the generator to run for 4 - 6 hours

every second or third day.“

Off Grid

Off-Grid Remote Water Pump Station Water is a vital resource for any community. In the aftermath of hurricane Maria, many remote water systems in Puerto

Rico failed because of a lack of power. Many are now being reconfigured with the assistance of the American Red Cross and

Water Mission. Pump and filtration systems are being backed up with off-grid solar systems so as to be able to ride out

future severe weather and consequential power interruptions. Critical to the design is a highly efficient solar system

supported by a single AES battery utilizing LYNK closed-loop network communication to optimize dynamic charging

capability of the Inverter Charger and MPPT 60 charge controller. Plug-and-play LYNK network communication and a

straight forward battery cable installation, the same as a lead acid battery, make the AES LiFePO4 battery the preferred

choice for installers in remote locations.

Application

• Micro grid power for community water pump

and filtration station

Requirement

• Backup power, high efficiency charging, solar

/ electrical system

System

• 1x AES 42-28-6650

• 1x SW Inverter Charger

• 1x MPPT 60

Project

• Location: Puerto Rico,

• Client: American Red Cross, NGO Water

Mission

Whole Home Battery Backup

Whole Home Battery Backup – Self ConsumptionAfter investing in a sophisticated grid interactive inverter charger system to support

advanced self-consumption the home owner became frustrated with the installed lithium

batteries that did not report state of charge (SoC) or available capacity to the system. The

local installer came to the rescue by installing five Discover AES LiFePO Batteries with LYNK

technology. AES LYNK technology now provides real time closed-loop communication with

the Xanbus enabled XW+ inverter chargers. Not only can the home owner now easily

monitor SoC, available store energy and daily energy throughput, but AES LYNK is also

improving system performance with faster recharge times.

Application

• Grid-tie whole home backup and self-

consumption

Requirement

• Upgrade from old lithium to advanced LiFePO

able to communicate status

System

• 5x AES 42-48-6650 (33 kWh)

• 2x XW+ Inverter Charger

• 2x MPPT 80

Project

• Location: St. Louis, KS - USA

• Client: Home Owner

Micro-Grid / Diesel Abatement

Micro-Grid / Diesel Abatement – Remote School

School District 27 and Naghtaneqed Elem-Jr Secondary were looking to reduce

their ~$78,000 CAD annual diesel fuel bill to provide power to a remote school

and out-buildings. To reduce off-season diesel consumption, the contractor

reconfigured the school’s system, adding a containerized 3PH hybrid solar

system supported by eighteen AES batteries in parallel. Taking advantage of

RUSH, RAPI-CHARGE and PARALLEL POWER technology the School District

estimates saving $50,000 CAD a year in diesel costs.

Application

• Diesel abatement – remote public school

Requirement

• Reduce diesel consumption, power for school, wood

shop, three mobile home and a health unit.

System

• 18x AES 42-48-6650 (120 kWh)

• 6x SMA Sunny Island Inverter Charger

Project

• Location: Nemiah Valley, BC Canada

• Client: Naghtaneqed Elem-Jr Secondary