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HYBRID’S, OPEX
REDUCTION
&
TOTAL ENERGY
EFFICIENCY
PRESENTED BY:
ALTERNATIVE ENERGY DIRECTOR
TELECOM DIVISION
MAY 2013
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Slide 2
14.05.2013
ELTEK – SAVINGS TO DATE
ENERGY EFFICEIENCY - END to END
TCO – GREEN ENERGY
MARKET TECHNOLOGIES
SW & PERFOMANCE MONITORING
SUMMARY
CONTENT
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Slide 3
14.05.2013
ELTEK– SAVINGS TO DATE
CONTENT
E-MOBILITY
RENEWABLE
INDUSTRIAL TELECOM
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Slide 4
14.05.2013
SUMMARY – TOTAL SAVINGS TO DATE!
724,000 M WHR – This can power
72,400 US homes for one year @ 10,000Kwhr per home
28.8 M liters of DIESEL Fuel – This can power
5,500 Telecom CDC sites for 1 year @ 2.4kw load
$114 M USD – This can
Feed, cloth and provide basic health needs for 190,000 families in
Africa for One (1) year. (ref Hope for Africa)
529,366 tons CO2 = 144,241 tons of Carbon credits.
Since introduction of HE Product line
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Slide 5
14.05.2013
ENERGY EFFICEIENCY - END to END
CONTENT
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Slide 6
14.05.2013
ENERGY EFFICIENCY
MODULAR POWER SOLUTION
Energy from PV
Energy from Poor Grid
Energy from Generator
Energy from Wind Turbine
Excess Energy Stored
Energy AC or DC
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Slide 7
14.05.2013
WHY ENERGY EFFICIENCY IS SO IMPORTANT..
8% energy loss
(= heat) > Costs money
> Requires cooling = more energy
and cost
100 %
input 92 %
output
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Slide 8
14.05.2013
WHY ENERGY EFFICIENCY IS SO IMPORTANT..
3,5% energy
loss
100 %
input 96,5 %
output
• Saves money
• Reduces environmental impact
• Requires less cooling
~ HIGH EFFICIENCY ~
Since 2008
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Slide 9
14.05.2013
ENERGY EFFICIENCY CYCLE – *RECTIFIERS / SOLAR CHARGERS / WIND CONVERTERS & DC TO AC INVERTERS
GENSET ENERGY – HE Rectifier = 96.5%
SUN ENERGY – HE Solar Charger = 96.5%
WIND ENERGY – HE Wind Converter = 96.5%
GENSET ENERGY – Inverter = 96% EPC
STORED ENERGY – Inverter = 92% On Line
* Reference Eltek
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Slide 10
14.05.2013
TCO – GREEN ENERGY
CONTENT
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Slide 11
14.05.2013
Alternative Energy – Telecom
MOTIVATION for introducing Alternative Energies
Energy cost – reduced OPEX & TCO
Improved network reliability
Off grid sites in rural areas
Inaccessible
Energy source redundancy
Vandalism
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Slide 12
14.05.2013
ICEBERG SYNDROME – TCO – 24/7 GENSET
TRUE
TOTAL COST OF
OWNERSHIP
$128k
CAPEX $23KUSD
OPEX $105KUSD
(3year period)
OPEX includes,
Diesel, Genset maintenance,
replacement batteries, cooling
tech maintenance, and all other
periodic preventative
maintenance.
CAPEX includes,
goods, services, tax’s etc.
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Slide 13
14.05.2013
ICEBERG SYNDROME – TCO – CDC
TRUE
TOTAL COST OF
OWNERSHIP
$94k
CAPEX $31KUSD
OPEX $63KUSD
(3year period)
OPEX includes,
Diesel, Genset maintenance,
replacement batteries, cooling
tech maintenance, and all other
periodic preventative
maintenance.
CAPEX includes,
goods, services, tax’s etc.
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Slide 14
14.05.2013
ICEBERG SYNDROME – TCO – HYBRID SOLAR
TRUE
TOTAL COST OF
OWNERSHIP
$69k
CAPEX $42KUSD
OPEX $27KUSD
(3year period)
OPEX includes,
Diesel, Genset maintenance,
replacement batteries, cooling
tech maintenance, and all other
periodic preventative
maintenance.
CAPEX includes,
goods, services, tax’s etc.
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Slide 15
14.05.2013
Source: GSMA Development Fund. Green Power for Mobile. Top Ten findings
HOW TO REDUCE OPEX !
• Reduce “On Time” of the generator
• Reduced diesel consumption
• Reduced maintenance costs
1. Energy Optimization
• 96.5% efficient rectifiers
• 96.5% efficient solar chargers
2. Utilization of
High Efficiency Converters
• Reduce the dependency on ACU 3. Use Passive Cooling
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Slide 16
14.05.2013
MARKET TECHNOLOGIES
CONTENT
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Slide 17
14.05.2013
SOLAR CONVERTER TECHNOLOGIES
98-99% conversion
efficiency
x No MPPT(*)
x No galvanic isolation
between panels and batteries
/telecom equipment
x The battery clamps the
output of the panels
x Maximum 70-80% panel
utilization
Direct Feed
Close to 100%
panel utilization
Full galvanic isolation
between panels and
batteries/telecom equipment
Typically a two-stage
converter with boost
input stage
Converter efficiency 96%
ELTEK VALERE Isolated MPPT
WITH ELTEK VALERE’S
MPPT SOLAR CHARGER
YOU CAN GET AN EXTRA
20% – 30% EXTRA ENERGY *over and above Direct feed designs
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Slide 18
14.05.2013
PV HIGH VOLTS DC INPUT –
CONTROLLED DC OUTPUT
Features
Maximum Power Point Tracking
Galvanic isolation
Supported by current Smartpacks
Characteristics
• Input voltage: 85 – 265 Vdc - Typical feed from one string of 4 to 6 solar panels
• Output power: 1500 W
• Output voltage: 48 – 58 Vdc
• Flatpack2 size - 1U high
- 4 pos power shelf
- 400mm deep
SOLAR CONVERTER
TELECOM STANDARD TECHNOLOGY
Greater than 96% efficiency!
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Slide 19
14.05.2013
TOTAL SITE CONTROL
S P S or Smart Pack 1 or Smart Pack 2
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Slide 20
14.05.2013
SOLUTIONS PART A
CONTENT
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Slide 21
14.05.2013
CHARGE DISCHARGE CHARGE
CYCLIC - CDC
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Slide 22
14.05.2013
CDC SOLUTION
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Slide 23
14.05.2013
Gen-Set
On
Load
Batteries
By periodically running the load on batteries,
you can :
power a larger load, thus the genset will be
more efficient per litre of diesel
Considerably reduce Opex cost due to
less frequent re-supply, maintenance,
repair and replacement
Have less of an impact on the environment
Generator Optimisation
CDC SOLUTION
Float voltage over time
Battery Discharging Battery Charging
Gen-Set
/ Off
Once batteries are sufficiently charged
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Slide 24
14.05.2013
HYBRID – SOLAR – WIND
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Slide 25
14.05.2013
Energy storage
Power core
Energy source
Hybrid solution
Energy flow Control/monitor
• Designed for telecom
• Modularity for future expansion
• High Efficiency (HE) for less losses
• One controller for ease of integration
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Slide 26
14.05.2013
SW & PERFOMANCE MONITORING
CONTENT
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Slide 27
14.05.2013
SOFTWARE TOOLS
A) - Power monitoring
B) - Alarm monitoring
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Slide 28
14.05.2013
MULTI SITE MONITORING
A) - POWER MONITORING
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Slide 29
14.05.2013
Slide 29
14.05.2013
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Slide 30
14.05.2013
Slide 30
14.05.2013
Filter on site types
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Slide 31
14.05.2013
Slide 31
14.05.2013
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Slide 32
14.05.2013
Slide 32
14.05.2013
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Slide 33
14.05.2013
Slide 33
14.05.2013
SKIP
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Slide 34
14.05.2013
Fuel consumption - generator runtime –
efficiency (*)
(*)Smartpack 1 – FW 3.06 or above required
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Slide 35
14.05.2013
SITE MONITORING – SNMP
B) – ALARM MONITORING
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Slide 36
14.05.2013
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Slide 37
14.05.2013
Remote Configuration
• Launch by double-clicking on a network icon
• Password protected
Double-click on a network icon to launch
Screenshots and device photos are for illustrations only. Subject to change without notice.
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Slide 39
14.05.2013
Fault Management
> Alarms such as
• Battery Low/High Voltage, Breaker Open
• AC Mains, Rectifier etc.
> Time-stamped Event Log
> Sophisticated Alarm Management
• Eliminate duplicate alarms
• Correlate alarm (auto-acknowledgement)
• Notification via email or audio
> SMS Notification (optional)
Requires a GSM Terminal
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Slide 40
14.05.2013
Graphical Report Views
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Slide 41
14.05.2013
SUMMARY
CONTENT
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Slide 42
14.05.2013
SUMMARY – HYBRIDS / CDC / ECB
96,5% Converter Efficiency
Fully integrated Single Controller
Reduced Service Requirements
Remote Monitoring & Control
Diesel reduction up to 80%
Total OPEX Reduction up to 75%
Reduced CO2 emissions >78%
20% to 30% more
Converter Energy = MPPT
EXTRA PV Energy 10%+ at low
irradiation MIN.
Local Service and support
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Slide 43
14.05.2013
Bangladesh- Present Scenario of Solar PV
Hybrid for BTS in Terms of Efficiency
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Slide 44
14.05.2013
Typically, Gen-sets have poor efficiency when
powering a small load
Generator Optimization-
Gen-sets operate with greater efficiency when
under higher loads
Gen-sets are not made to operate at low loads for long periods, so in addition to poor
performance, the generators will break-down more often
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Slide 45
14.05.2013
Break Even Point Based for On Going Solar Hybrid
System in Bangladesh
(1,000,000)
(500,000)
-
500,000
1,000,000
1,500,000
2,000,000
1 2 3 4 5 6 7 8 9 10
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Slide 46
14.05.2013
Financial Breakdown and Assumption
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Slide 47
14.05.2013