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Quantifying Commercial Benefits of Fuel Saver Systems
Quantifying Commercial Benefits of Fuel Saver Systems
Content
1. Juwi Group ASIA Pacific
2. Solar Fuel Saver (SFS) Motivation
3. SFS Systems and Features
4. Maximized Operational Security
5. Applications and Profitability
6. Beneficial SFS Solution
7. Additional Information
Energy is here 1. juwi Group Asia Pacific
Kai Klingenhagen ∙ Business Development Asia Pacific ∙ juwi Group
juwi at a Glance
Company structure Founded in 1996 juwi AG owner-managed
Employees > 1,800 employees (worldwide)
Revenues 1.0 billion Euro in 2011 1.1 billion Euro in 2012
Total capacity > 2,500 megawatt
Annual energy output around 4.5 billion kilowatt-hours Supplies power for ~ 1.5 million households
Investment volume (since 1996) more than 5 billion Euro
International Offices, Project Locations and New Markets
Western Europe Germany, France, Great Britain, Switzerland
Southern Europe Italy, Spain, Greece
Eastern Europe Czech Republic, Poland, Bulgaria
Americas USA/Canada, Costa Rica, Chile
Asia India, Singapore, Japan, Thailand, Malaysia
Africa South Africa
Our Services: All about the Project
Consulting & Acquisition Planning Development Financing &
Sales Construction Management
Global Highlights 2012 & Asia Pacific Operations
juwi Has Installed over 2500 MW in More than 20 Countries
Location: Lieberose, Germany, PV capacity: 71.8 MWp, various wind projects globally with 1250 MW
Solar Power: 329 MWp Completed in 2012
Location: Arizona (USA) 25 MWp, single axis tracker, Ronneburg (Germany) 20 MWp, Gujarat (India) 24 MWp, Tambo Real (Chile) 1.2 MWp
Asia Pacific, 146 MWp Completed or under Construction
Location: Rajasthan (India) 26.4 MWp, Rajasthan 24 MWp, Thailand 61 MWp, Japan 2x1 MWp
2. Solar Fuel Saver (SFS) Motivation
Why to hybridize your diesel plant?
The price for PV systems
decreased by more than 60%
in the last 3 years
Fuel costs for Diesel
Generators are constantly
rising
In many countries PV-Diesel Systems present already today an economic viable solution. This effect will even increase in the next years. In the Philippines PV energy is already between 30 and 150% cheaper than
diesel energy
Time
$ / kWh
Today
Generation costs by Diesel Generators
In most of the sunbelt countries generation costs
by diesel generators are > 0,30 € / kWh
Whereas generation costs in the same area by PV
applications are < 0,15 € / kWh1)
1) E.g. in Germany feed in tariff for 1MW plants is currently at 0,13 €/ kWh (0.17USD/kWh)
3. SFS Systems and Features
Solar power is directly injected in
the diesel generator mini grid
Reduction of fuel consumption
due to solar energy penetration
No batteries are needed
The SFS controller manages the
Solar power output according to
the operation of the Diesel
generator
The Solar Fuel Saver (SFS): General overview
SFS Integration: implementation in existing system
A : measuring point for generator data
used for regulating PV power (voltage,
current, frequency, and power factor)
B: measuring point for the load data
only used for data logging (Voltage,
Current, frequency, and power factor)
A B
SFS Integration: implementation in a system with public grid connection
Functionality of the SFS
The solar power reduces the power generated by the diesel generator
As soon as the generator reaches critical part load operation the SFS controller decreases the power output of the solar plant
Technical Features
The Solar Fuel Saver can be integrated into existing or new diesel
generator grids. It operates with all standard generators
(isochronous or droop controlled)
By regulating the solar power output the SFS controller
guarantees an optimized operation of the Diesel generator
Protection against minimal part load
Reverse power protection
Additional control options of Diesel generator: time based , part
load
Integrated data logging of system performance
Remote monitoring via internet (optional via GSM)
Simple installation (plug and play)
4. Maximized Operational Security
Maximized Operational Security
Through:
Feasibility study through our experts
Usage of technical proven and tested equipment
Through a 24/7 Monitoring
Frequent annual Maintenance check of the system through juwi Partner
Remote Monitoring of the system with error analysis within 48 hrs
Feasibility Study
Load information:
Hourly load data over the entire day
Load seasonality appreciation thanks to hourly
load data from different season
Diesel consumption per day/month/year
Datasheet of the diesel generator
Precise Diesel price and increase expectations
These Data can be obtained from:
Diesel generator controller (Data logger) if any
Electricity metering system
Precise control from the diesel purchase/tank
level…
Feasibility Study
Where to install and why?
A Distance between SFS and Measuring Point no longer than a few meters
B Optimal Distance between SFS and Inverters under 100m. If longer than 100m additional technical equipment needed
C Distance between Solar Field and Inverters to be optimized to reduce losses on the DC side.
A B
C
System Components
SMA – a standard PV product Fuel Saver (FS) consists of several switch
boxes
Limited to SMA inverters
Ready developed product with limited
modification possibilities
Not suitable for small system
More expensive
juwi Solar Fuel Saver - a flexible project
approach Touch display for commissioning, operation and monitoring One box solution (plug and play) The SFS can be adapted to clients needs as it is a in-house development SFS can also be implemented in PV systems < 300 kW Can start and stop the generator Principal possibility to communicate with any PV inverter (not limited to one brand) 2 field test projects with 35kWp solar and 30kVA Diesel generator (very high PV penetration)
Monitoring
On customers demand the plant can also be monitored from our control room in Asia and Germany.
The monitoring then includes: Remote Monitoring 24/7 Disruption management: prioritization of the different alarms, decision of sending or not corrective maintenance team Disruption assignment: missioning the corrective maintenance team in the corresponding country to go on site and deliver them the plan of action
Monitoring
The data logging of the system is realized by the Cluster Controller inside the Solar Fuel Saver.
Logged Data: PV power [kW] Power of the whole system [kW] Power Factor [PF] Frequency [f] The energy produced per day [kWh/day] The total energy produced since commissioning [kWh]
Plant yield Monthly values, diagrams and graphs Performance Ratio [%] The faults and availability of the plant
Alarms For each inverter Automated yield analysis routines
Risk Reduction – System Optimization
Optimized system Design Optimization of the SD of the plant to the load curve (orientation, size…)
Financial optimization of the plant to maximize IRR and minimize pay back time
Step by step solution to adapt to financial capabilities of the client and the market
environment
Range of solution Solar: from 70kWp up to 6 MWp
Compatible with single generator system or multiple generator aggregates
Diesel: from 150kVA up to 30/40 MVA
5. Applications and Profitability
Hotels and Resorts
Remote Settlement and Commercial Areas
Mining Industry
Pumping Systems and Ice Factories
Daytime loads as air-conditioning , cooling or pumping can be covered
Supermarkets have good load profiles, as they are mostly running during daytime Individual solutions for small villages
Good preconditions according to constant loads at relatively high power output and daytime operations
High solar fraction, as loads can be adapted to solar resource
Industry example
Consumer Region Diesel Cost LCOE Diesel (USD/kWh)
LCOE Solar
(USD/kWh)
pay back (years)
Fuel saving (L)
IRR
Industrie 10h constant load
Quezon 0,99$/L 0,34 0,23 8 302.752 17,0%
Palawan 1,17$/L 0,40 0,20 5 348.385 29,1%
Industrie 8h constant load
Quezon 0,99$/L 0,28 0,26 12 206.805 6,3%
Palawan 1,17$/L 0,33 0,26 9 241.345 15,0%
10h constant load 8h constant load
Financial Assumptions:
Same financial hypothesis: 30% equity, debt interest rate:10% over 10 years, 15 years lifetime, discount rate 10%
System size: Diesel 4MVA Solar 1MWp
Village electrification Example (Quezon Region)
Fishing village Village with small comercial area
Consumer Region Diesel Cost ELC Diesel (USD/kWh)
ELC Solar (USD/kWh)
pay back (years)
Fuel saving (L)
IRR
Village with small commercial area
Quezon 0,99$/L 0,35 0,22 7 326.112 19,6%
Palawan 1,17$/L 0,41 0,19 4 373.992 32,5%
Fishing village Quezon 0,99$/L 0,35 0,22 4 438.085 32,2%
Palawan 1,17$/L 0,41 0,22 3 438.085 41,3%
Financial Assumptions:
Same financial hypothesis: 30% equity, debt interest rate:10% over 10 years, 15 years lifetime, discount rate 10%
System size: Diesel 4MVA Solar 1MWp
Resort Example
Consumer Region Diesel Cost ELC Diesel (USD/kWh)
ELC Solar (USD/kWh)
pay back (years)
Fuel saving (L)
IRR
Resort Quezon 0,99$/L 0,36 0,22 6 270.651 23,5%
Palawan 1,17$/L 0,42 0,19 4 311.991 38,3%
Financial Assumptions:
Same financial hypothesis: 30% equity, debt interest rate:10% over 10 years, 15 years lifetime, discount rate 10%
System size and site detail: Diesel 3*750kVA Solar 750kWp 200 rooms resort Island site
6. Benefits of SFS Solution
PV Plant leasing
JUWI Renewable Energies Pte LTD
Consumer
Investor Technical SFS Solution
O&M Package
Local Partner
Leasing contract XX$/month
in order to use the PV plant and save on diesel
volume
End consumer keeps the lead on its energy supply management
Power Purchase Agreement – Pay per kWh
JUWI Renewable Energies Pte LTD
Consumer
Investor Technical SFS Solution
O&M Package
Local Partner
USD/ kWh
Investor take the lead on the energy supply / end consumer concentrate on core business
Summarized Advantages
Complete Technical and Financial Solution of the Fuel Saver Concept in the
Reduced fuel consumption of the diesel generators. Reduction of generation
costs up to 50% (depending on load profile)
Less dependency on oil price fluctuations
Summarized Advantages
Short payback time: approx 4 years based on a diesel price of 1 €/liter
Low investment costs (as no batteries are required)
Flexible controlling possibilities on the diesel generator
The Solar Fuel Saver is the perfect solution to cut down the generation costs of
existing or new diesel generator grids.
Additional Information
Support for local Partners
Marketing Material
1. Brochure
2. www.juwi.com/solarfuelsaver
3. White Paper
4. Presentation
Technical support
1. Questionnaire
2. Dimensioning in off-grid department
Thank You Very Much for Your Attention! Kai Klingenhagen juwi Renewable Energies Private Limited 171 Chin Swee Road, #12-05 San Centre, Singapore 169877 Tel. +65 65 16 98-21 Mob. +65 84 98 74 66 Fax. +49. (0)6732. 96 57-8541 [email protected] www.juwi.com
