1 1 www.realforce-power.com

Introduction

This presentation is an introduction to RealForce Power’s product lines in both Solar PV

and Li-Ion Battery Applications. All of our product offering include:

Better Quality

Recognized by CE, TÜV Rhineland and UL

PV Module 12 years 90% / 25 years 80% power output warranty

Better Cost

Establishing scientific methods of cost accounting and control

Economies of scale: 1.3GW in 2011

Better Customer Service

24Hrs response time

Localized presence

Better Delivery

Local warehouse is set in Antwerp to cover European sales (PV Modules)

RURAL OR REMOTE REGIONS WITH NO

CENTRALIZED POWER CENTER

FACTORIES, ENTERPRISES, COMMERCIAL CENTERS

WITH BIG FLUCTUATION OF LOAD OR HIGH

ELECTRICITY COSTS

LOCATIONS THAT NEED 24 HOUR ENERGY UP-TIME

(HOSPITALS, BANKS, IT CENTERS)

AREAS LIMITED DUE TO ENVIRONMENTAL

PROTECTION RESTRICTIONS

LOCATIONS THAT REQUIRE TRANSPORT LIQUID

FUELS FOR ELECTRICITY GENERATION

LARGE LOAD CENTERS

Application Areas

Factory or Commercial

Centers

24 Hour Uptime

Locations

Environmentally Restricted

Locations

Island Communities with no

centralized power

Remote Mining

Operations

Liquid Fuel Generation

Locations

Micro-Grid Concept

1. PV Array 2. Inverter 3. Charge Controller 4. Battery Bank 5. Back up Generator 6. Other Renewable Energy Source Legend

On-Grid Applications Commercial

On/Off-Grid Applications Residential

3kW, 220V/240V, 50/60Hz, 16A

Off-Grid Applications

How Do We Get There

RealForce PV Modules

PV Modules

High PTC rating with the CEC!

Battery Energy Storage System

System Overview: 1MWH power station energy storage system includes;

• 2 - 500KWH sub-energy storage systems, each of them is composed of 1pcs 100KW energy storage bi-directional converter

• 1 BMS (Battery Management System)

• 1 backstage monitoring and management system

• 1 set LiFePO4 battery pack . LiFePO4 battery pack is composed of 3456pcs RFE-F100 modules in series and parallel to make a

cluster; 12 clusters in parallel

The whole energy storage system is controlled

by one monitoring and management system (web

controlled). Special features include:

• high specific-energy

• long lifespan

• Safety & reliability

• wide operation temperature range

Turn-key Container Design

Portable

Short installation time

Complete inspection

Freight economic

Closed design, optimized safety

Battery Bank Design

RealForce Li-Ion battery storage systems

INCLUDE-

1. LiFePo4 battery packs

2. Battery Management System (BMS)

3. Power Conversion System (PCS)

4. Custom design monitoring system

5. Transformer

6. Grid-connected switch cabinet

7. Bidirectional active power & reactive

power charging

8. Watt-hour Meter

Li-Ion Battery Storage

Example: The Realforce Energy Storage System is a

1-megawatt-hour unit capable of producing 1 megawatt

or 2 megawatts of continuous AC power from a 40-foot

shipping container weighing 35,000 kilograms. The

container can be mounted on a concrete pad or on a

wheeled trailer.

1. High energy density, about 6-7 times than lead acid batteries

2. Long life span, more than 6 years

3. Up to 7000 charge and discharge cycles

4. Warranty: 2 years

5. High nominal voltage (work voltage reaches 3.7V or 3.2V for

monomer cells)

6. Low self discharge rate, which is one of the most outstanding

features. Presently below 1% (less than 1/20 that of MH batteries)

7. Light, low volume, and weight only 1/5-1/6 that of lead acid

batteries

8. Better adaptability with high and low temperature, with working

temperature range between -20℃--60℃; -45℃ is also available

Battery Design Features

Lead acid battery LiFePO4 Battery Advantages of LiFePO4

Volume Large 1/3 of lead acid battery Easily installing, low cost, safe and reliable

Weight Heavy 1/3 of lead acid battery

Cycles

300-400

300-400 times 2,000-7,000

No need to change battery every year, no

maintenance cost

Pollution

Serious Non-pollution

No water contamination caused by leakage as

lead acid batteries

Discharge and

charge

efficiency

～85% 95% More environmental protection

System cost

Though battery cost is

low, maximum power is

requested in tracking

module

Flat voltage plateau to

eliminate the need for

maximum power

tracking module

Much longer life span than lead acid batteries,

though a little high cost

Battery Comparison

Model Nominal

Energy

(MWh)

Nominal

Voltage

(V)

Capacity

(Ah )

Charge cut-

off voltage

(VDC )

Discharge

cut-off

voltage

(VDC )

Charge and

discharge

current

(A)

Max.

charge

current

(A)

Input

power

KW

Output

power

KW

Max

efficiency

RFE-

216F800 0.5 MWh 691.2 800 756 626.4 160 240 100 100 >0.95

RFE-

216F1600 1 MWh 691.2 1600 756 626.4 320 480 200 200 >0.95

RFE-

216F3200 2 MWh 691.2 3200 756 626.4 640 960 400 400 >0.95

RFE-

216F8000 5 MWh 691.2 8000 756 626.4 1600 2400 1000 1000 >0.95

RFE-

216F16000 10 MWh 691.2 16000 756 626.4 3200 4800 2000 2000 >0.95

Battery Specifics

Grid charge automatically ( choose charging and discharging strategy according to the features of the energy storing

components, such as the typical four phases charging management)

When grid discharging, the discharge rate can be fixed before hand or be timer controlled in the monitoring system

When grid discharging, PQ decoupling control active and reactive independently and respectively

In the grid-connection, work with dispatching system, balance the peak and off-peak according to the historical curve or

the actual electricity load

In the grid-connection: works with AVC, this can control the static and reactive power grid; output reactive power in

emergencies to avoid low voltage load tripping and breakdown, controls dynamic reactive power

In off-grid applications, system can provide stable voltage and frequency to loads in the isolated network and can prevent

from over discharging In grid-connected, it realizes stabilizing intermittent wave changes output feature of intermittency Protective functions will protect safety of converter and battery in case of malfunction

Self-checking functions check input, output, and CPU of control loop thus prevent damage of hardware and wiring

Ethernet equipped: CAN and RS485, MODBUS enabled, IEC61850; can be easy connected with monitoring system and

control systems

Provided LCD connector that supports local setting

Provided CSPC software will record malfunctions, adjust setting defaults, and test input and output connections

Energy Storage System Functions