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GREEN INITIATIVE FOR POWERING OFF GRID BASE STATIONS

ADVANCED TECHNOLOGY

Unique integrated hybridtechnology integratingrenewable energies and fuel

cell as one energy source

High availability

Robust

Silent

Installation foot print

Fast installation Limited maintenance

ECOpx Integrated hybrid system with an unique architecture

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The goal of this project is to improve the reliability, the autonomy, and TCO of anautonomous energy system with a new hybrid architecture.

CASSIDIAN and AEG Power solutionsprovide key power electronic products

AUTONOMOUS AND RELIABLE ENERGY STATION

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The combination of the both Wind and Solar independent power sources withLithium batteries and the use of fuels cells provides reliable energy to power base

station telecom equipment.This technology is matured and has many benefits compared to classical systemssolutions using Diesel Generators, such as higher fuel cell efficiency, reliable start-up , extended batteries life and compactness, silent operation.

The demonstrator provides an overview of the settings, benefits, energy storageand the state of the technology for each component, and their association to builtthe system.

The key components of the autonomous energy system in this demonstrator are :

the PV array, the wind turbine , the fuel cell, the lithium batteries, the global controller, with remote communication

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PV panels and Wind Turbine are interfaced to the 48VDC bus through isolateddc/dc converters (PVi1600HD) associated in parallel with MPPT functionality.This solution utilizes the Solar and Wind power when available to power thetelecom equipment at the site. It also keep the batteries in floating and the extra

power is used to feed the ElectraGen system (Full Cell).From sunset until sunrise the load is powered by the Lithium batteries, and thusthe batteries are in discharge mode.If needed, at a specified DOD, the ElectraGen (Full Cell) starts, supplying the loadand charging the batteries. At a DOD above 95% the ElectraGen (Full Cell) stops.

All the integrated components of the power system are monitored by an uniquecontroller ACMi1000e, which controls all energy production and transfer, but alsothe battery management.

Main operation Modes and energy priorities :Solar and Wind Power are configured as the primary power sourceLithium batteries is configured as the secondary power sourceElectraGen (Full Cell) is configured as the third power source

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Hardware Configuration

Advanced Outdoor Cabinet equipped with:

ecopx 4801 All In One sub rack (19-7U)

3+1 slots for PVi1600HD (high-efficient isolated DC-DC converter with MPPT functionality)

2+1 PVi1600HD fitted (for the redundancy)

ACMi1000e Controller including Data logger

Interface and protection for PV strings (max of 3)

LVD on load branch

ecopx 6400 Wind Turbine sub rack (19-XU)

4 slots for PVi1600HD

4 PVi1600HD fitted (for the redundancy)

Interface and protection for Wind Turbine

Communication: TCP/IP

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Hardware Configuration

DC Load distribution (2x150A;2x32A; 2x16A)

3 x Battery branches protection

(breaker 100A type AIRPAX LELK11-1REC4-39485-100-V)

9 x Saft Evolion battery 48V 77Ah

Remote solar insolation captor

Remote solar temperature sensor

Load

Telecom load ( resistive, fixed 1kW load )

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Hardware Configuration

1 x ElectraGen ME (backup power fuel cell system) in 2 x 2,5 kWconfiguration

ElectraGen ME remote alarms and command PV strings

2 strings of 5 x 333Wp panel in series

(Sun power SPR-333-N2-WHT-D)

1 x Wind Turbine

(Weole type Sirocco 6 kW)

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ElectraGen ME AlternativesforPoweringTelecommunicationsBaseStations

Power Rating: 5 kW

Nominal Voltage: 48 Vdc

Voltage Adjustable: 46 to 57 Vdc

Size (W x D x H): 1.3 x 1.1 x 1.77 meters

Footprint (W x D): 1.3 x 0.9 meters

Product Weight: 295 kg excluding fuel

Fuel Weight: 193 kg

Fuel Tank Size: 225 Liters

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PCM ECOPX 4801 + RACK PS6400_WT AlternativesforPoweringTelecommunicationsBaseStations

PCM ECOPX4801

Power Rating: 4800 W

Input Nominal Voltage: 170-420 Vdc

Output Nominal Voltage: 48 Vdc

PV Redundancy: N+1

Size (W x D x H): 447 x 435 x 312 mm

Product Weight: . kg excluding

Temprature Operating: -20C up to 70C

Rack PS6400_WT

Power Rating: 6000 W

Input Nominal Voltage: 170-420 Vdc

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BATTERY STORAGE-Saft Evolion battery 48V 77Ah- AlternativesforPoweringTelecommunicationsBaseStations

77 Ah - 48 V 3,9 kWh

3 hrs charging time

RS485 communication bus

Size (W x D x H): 404 x 216 x 260 mm

Product Weight: 30 kg

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EOLTEC SCIROCCO 5.6 - 6 AlternativesforPoweringTelecommunicationsBaseStations

Rotor Diameter : 5.6m

Rated Capacity : 6 kW

Max Capacity : 6 kW

STAND-ALONE TILT TOWER

Weight: 642 kg

Number of Sections: 3

Height : 11m

Diameter (bottom): 550mm

Diameter (top): 230mm

Composition: Galvanized Steel

Tilting System: Manual Winch

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PHOTO VOLTAIC (PV) ARRAYS Solar Module E20/333 et E20/327- AlternativesforPoweringTelecommunicationsBaseStations

Nominal Power (+5/-0 %) Pnom 333 W

Efficiency (cell) 22,9 %

Efficiency (module) 20,4 %

Voltage at Max Power Vmpp 54,7 V

Currant at Max Power Impp 6,09 A

Voltage at open circuit Voc 65,3 V

Short Circuit Current Isc 6,46 A

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Site Pictures Power and Telecom bay- Fuel Cell cabinet - AlternativesforPoweringTelecommunicationsBaseStations

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Site Pictures Power and Telecom bay- AlternativesforPowering

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Site Pictures General view - AlternativesforPowering

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Site Pictures General view - Alterna

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