Download - TECHNICAL WORKING GROUP III : Energy Efficiency Master Plan Hotel Grand Candi, 10-11 July 2011
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TECHNICAL WORKING GROUP III : Energy Efficiency Master Plan
Hotel Grand Candi, 10-11 July 2011
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Background
Energy has a very important role and become a basic necessity in national sustainable development. Therefore, energy should be used sparingly, rational, and wisely so that the energy needs in the present and the future can be met.
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Background
If the policy to conserve energy, encourage use of renewable energy and carbon emission reduction is adopted, the energy requirement would be reduced by 12-16 percent.
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Background
Presidential Instruction No. 9 of 1982 .The steps of energy conservation through:
a) The energy-saving campaignb) Training of conservationc) Demonstration and examples of energy-efficient appliancesd) conservation technology R & De) Development of energy audit, identify potential efficiency improvements f) Standardization
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CURENT SITUATION OF ENERGY CENTRAL JAVA PROVINCE
SECTOR FOR EFFICIENCY
HOUSEHOLD
BUSINESS
INDUSTRY
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Comparison of Number of Subscribers Household Sector,
Business and Industry
Total Cos-tumer
- 1,000,000.00 2,000,000.00 3,000,000.00 4,000,000.00 5,000,000.00 6,000,000.00 7,000,000.00
HouseHold
Business
Industry
HouseHoldBusinessIndustry
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Electricity price comparison of Household Electrical Sector,
Business and Industry
Rp./kWh
-
200.00
400.00
600.00
800.00
1,000.00
HouseHold
Business
Industry
HouseHoldBusinessIndustry
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Comparison of the time blazing Household Sector, Business and
Industry
HouseHold Business Industry0
50
100
150
200
250
300
Average Time per Costumer
Avarage Time per Costumer
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PLAN TARGET OF ENERGY EFFICIENCY
The details and profile of energy use in the household sector, industrial, and commercial buildings in Central Java.1
Identification of energy waste and potential savings in the household sector, industrial and commercial buildings. 2
Recommendations of energy saving measures.3
The priority or order of application of energy conservation based on the technical, financial and environmental.
4
The feasibility study recommended Energy Conservation Projects which require a fee (medium / high cost).5
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1982
1991
1995
2005
2006
ENERGY CONSERVATION
POLICY
2007
Presiden Instruction No. 9 Year 1982 in Energy Conservation
Presidential Decree No. 43 Year 1991 in Energy Conservation
Master Plan in National Energy Conservation Year 1995 (Ministrial Decree No. 100/48/M.PE/1995) and revised in year 2005
Presiden Instruction No. 10 Year 2005 in Energy Eficiency and MESDM regulation No. 0031 Year 2005 in Energy Efficiency Procedure.
Law No. 30 Year 2007 Energy
Presiden Instruction No. 2 Year 2008 in Energy and Water Efficiency
2008
Presiden Regulation No. 5 Year 2006 in National Energy Policy
2009 Government Regulation No.70 Year 2009 Energy Conservation
2002 Law No. 28 Year 2002 in buildings
ENERGY CONSERVATION NATIONAL POLICY
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LEGAL
BASIS
LEGAL
BASIS
Provide energy conservation information
dissemination, such as
campaigns, training, seminars
workshops, and pilot.
Efficient and Saving in Energy Usage
Make regulations
requiring the implementation
of energy conservation to companies or
industries, such as
legislation, regulations regarding
licensing in all sectors.
Provide incentives related to
energy conservation
activities, such as
providing investment
incentives and awards for
energy conservation.
Impose energy
conservation standards, such as SNI
Energy Conservatio
n in buildings in the law and licensing.
Develop plans based
electrical energy
needs of efficiency. (Distric)
Local Government / State
Regional Regulation and Policy Efficiency
1 2 43 5
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Action Plan for Energy Efficiency
ACTION PLAN FOR
TECHNICALInvestment plan for the
medium-term measures with a
payback period of 1-5 years.
Long-term strategy
(eg. awareness campaign).
Low cost or no cost by immediate
action with a payback 1 year
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Step Implementation of Energy Efficiency
Awareness and EducationCampaignTraining
EducationPilot Project
Dialog ForumMulti Sector
ControllingEnergy Audit
Energy ManagementStandardization
Procurement Inisiative
InsentifFiscal Insentive
Subsidy diversion Appreciation Market
transformation Partnership
Procurement Initiative
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HOUSEHOLD SECTOR
No Cost.By turning off 2 bulbs in specific time
(ex: 5pm – 10pm). Bulb has 60 Watts, every house can saves 600 watts.
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in one month,
every house can save :
= Rp. 15.435,-
Everymonth saving Rp.
15.435,- x 6002195
= Rp. 92.643.879.830
It saves up to 108 GW
LEVEL
Price (Rp./kWh)
HouseHold
Type - 1 (450VA) 495,00
Type - 1 (900VA) 495,00
Type - 1 (1300VA) 790,00
Type - 1 (2200VA) 795,00
Type – 2 890,00
Type – 3 1.300,00
AVERAGE 857,50
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Before Saving Energy After Saving Energy
6,260,000,000
6,280,000,000
6,300,000,000
6,320,000,000
6,340,000,000
6,360,000,000
6,380,000,000
6,400,000,000
6,420,000,000
6,440,000,000
Total energy sold 1 year(kWh)
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HOUSEHOLD SECTOR (investment plan)We are targeting people who want to change the
light bulbs into energy saving lamps is 20%. Active time ± 5 hours.
Conventional Energy Saving
Life time ( hours) 1.000,00 6000-10000
Replacement ( Month) 8,00 50,00
Energy Consumed (Watt) 180,00 42,00
Price (Rp) 10.000,00 35.000,00
Electric Cost (1300VA)(IDR) 790,00 790,00
Watt Hour per month 8.280,00 1.932,00
kWh per month 27,00 6,30
Monthly payment 7.716,96 1.800,62
Monthly payment for 3 bulb 23.150,88 5.401,87
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Total Household Customer
LEVEL
Energy cost Total Household
Per kwh (IDR) Customer
Type - 1 (450VA) 495,00 3.980.991,00
Type - 1 (900VA) 495,00 1.693.816,00
Type - 1 (1300VA) 790,00 215.524,00
Type - 1 (2200VA) 795,00 85.470,00
Type - 1 (The Rest) 795,00 0,00
Type – 2 890,00 23.553,00
Type – 3 1.300,00 2.841,00
Type - 4 1.300,00 0,00
6.002.195,00
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For three classes (450, 900, 1300 VA)
For the one month:With the light bulb uses = 27 kWhWith energy saver bulbs = 6,3 kWh
450 VA = 20,7 x 790 x 495 x 3.980.991 = 13.020.229.164,60
900 VA = 5.539.794.609,60 1300VA = 704.892.794,40Total saving cost = Rp.
19.264.916.568,60
Save:
20,7 kWh
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For the second month and so on we just need to accumulate of the total saving cost per month.
With investment for three category is Rp. 35.000,- x total household
customer x 20%= 41.232.317.000,00 / month
So NPV can be found as shown in the graphic:
For three category (450, 900, 1300 VA)
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For three classes (450, 900, 1300 VA)
We can see that the payback will be got after almost only two-half months.
1 2 3 4 5 6 7 8 9 10 11 12
-50,000,000,000.00
0.00
50,000,000,000.00
100,000,000,000.00
150,000,000,000.00
200,000,000,000.00
250,000,000,000.00
NPV
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Replacement the refrigeratorFor general, the old refrigerator: 0,15 kW
the new ones: 0,07 kW (single door)
Using time is 24 hours and discount rate 12% / year.
BEFORE :
acc. Energy/month = 0,15 x 24 x 30 days = 108
acc. Energy cost = 108 x Rp 495,- = Rp. 53.460,-
With IRR= 0,99 << , DR = 0,01
Monthly cost = (IRR x DR x acc. Energy cost)
= Rp. 52.930,69
AFTER : Rp. 22.936,63
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Replacement the refrigerator
cost/month(thousand) energy use/month(kW)0.00
20.00
40.00
60.00
80.00
100.00
120.00
COMPARISON OF COST AND ENERGY USING BEFORE AND AFTER SAVING
beforeafter
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Replacement the refrigeratorEnergy cost saving = Rp. 29.994,06 PER MONTH
With the investment to buy new refrigerator is Rp. 1.000.000,-
The payback is after 60 month or five year.
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82
-1200000
-1000000
-800000
-600000
-400000
-200000
0
200000
f(x) = − 160.165560384076 x² + 26291.3676894095 x − 996313.136873353NPV
NPVPolynomial (NPV)
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PLN’s benefit
Power Number of Total Subsidy Energy Savings PLN regeneration
cost
ConnectedTargeted
Customers 50% (kWh) saving (IDR)
450 VA 796.198 557.338.740.000,00 298.096.606,08 745.241.515.200,00
900 VA 338.763 237.134.240.000,00 126.832.942,08 317.082.355.200,00
1300 VA 43.105 30.173.360.000,00 16.138.437,12 40.346.092.800,00
Total 1.178.066 824.646.340.000,00 441.067.985 1.102.669.963.200,00
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Business Sector
Increasing the awareness of costumer’s electrical usage
Replacing the conventional tools with the energy saving one
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TIME MANAGING
According to survey in a hotel in Central Java, because of time managing, this hotel can save the price up to Rp 62,927.44 a day.
It mean, in 1 month, that hotel can save up to Rp.188,782.32.
If all hotel in Central Java (106 star hotels) organize a usage of its electrical tools, hotel business in Central Java can save money up to Rp 20 million/month.
Just imagine, there’s 1090 not starred hotels in Central Java.
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Replacing conventional bulbs to energy saving bulbs
With the same calculation with the household, for replacing 20 lamps, we get chart as below:
773,129,389
1,163,617,070
3,487,554,951
1,049,008,756
1,635,261,145
6,453,875
(Rp.)
B1-450VAB1-900VAB1-1300VAB1-2200VAB - 2B - 3
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Replacing solar-fuel boiler with heat exchanger
Comparison solar-fuel boiler with heat exchanger
Boiler Heat Exchanger
Price (Rp.) 35,000,000 42,000,000
Diesel Oil cost Rp 4,500 -
Diesel Oil cost (for 2500 VA) Rp 1,800/kWh -
watt hours per days 10,000 -
watt hours per month 300,000 -
kWh per month 300.00 -
Monthly payment 540,000.00 -
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From the data above, it can be concluded that the boiler using additional cost per month as a fuel, while the heat exchanger is not.
From the data above obtained calculation results that by replacing the heat exchanger obtained BEP (Break Event Point) in the next 11 months from the time of initial purchase.
Replacing solar-fuel boiler with heat exchanger
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Industrial Sector
The main factors of energy optimization are as follows:
Settings "on time", just as long as needed only.
Modifications at the time, detector occupancy, building automation systems, and so on.
Optimal speed settings.
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Case Study
In PT PANCAMANUNGGAL WIRADINAMIKA SEMARANG.
70%
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ENERGY SAVINGOVER-SIZE
11 kW
15 kW
18,5 kW
DESIGN = 12,5 kW
ACTUAL = 12,5 kW x SAFETY FACTOR = 12,5 kW x 1,3
= 16,25 kW
OPTIONAL = 18,5 kW
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ENERGY SAVINGOVER-SIZE
SAVING :
- REPLACEMENT MOTOR = 18,5 kW - 15 kW = 3,5 kW
- INSTALLATION VARIABLE SPEED DRIVE = 18,5 kW - 12,5 kW = 6 kW
VARIABLE SPEED DRIVE WILL USE ENERGY ACCORDING TO THE LOAD CAPACITY NEEDS.
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ENERGY SAVINGOVER-SIZE
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ENERGY SAVINGOVER-SIZE
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ENERGY SAVINGOVER-SIZE
The savings on motor done with the installation of temperature sensors and the installation of variable speed drives.
Variable speed drives will use energy according to the capacity needs of the load by regulating the speed of the fan motor.
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ENERGY SAVINGSPEED vs ENERGY
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APPLYING THE PRINCIPLES:SPEED ≈ FLOW ≈ (PRESSURE)2
≈ (ENERGY)3
0,9 SPEED ≈ 0,9 FLOW
≈ (0,9)2 ≈ 0.81 PRESSURE
≈ (0,9)3 ≈ 0,729 ENERGY
REDUCTION OF SPEED 10 % SAVE ENERGY 27,1 %
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ENERGY SAVINGSUCCESS STORY (I)
IMPLEMENTATION VSD FOR COMPRESSOR 75kWIN PT TOSSA SAKTI SEMARANG
MEASURING RESULT
50 Hz
15 Hz
45 Hz
15 Hz
50 Hz
50 Hz
FREQUENSI
181914UNLOADING
909275LOADING
182015UNLOADING
10210289LOADING
607263UNLOADING
9310599LOADING
T(A)S(A)R(A)POSITION
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ENERGY SAVINGSUCCESS STORY (I)
MEASURING RESULT (2)
Excellent52,1%3,86745 Hz
VSD
Very good46,6%4,31350 Hz
VSD
No good0%8,07550 Hz
without VSD
RESULTSAVINGKWH10minutesDESKRIPTION
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ENERGY SAVINGSUCCESS STORY (II)
IMPLEMENTATION VSD FOR WATER PUMP 30 kWIN PT TOSSA SAKTI SEMARANG
MEASURING RESULT
10,5%42,2746,243,237,4After (50Hz)
35%30,5733,032,026,7After (45Hz)
TSR
20,420,4
47,248,6
59,8%19,016,2After (40Hz)
0%47,2345,9Before(50Hz)
SavingAmp Avg
Amphere PhasaDescription
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ENERGY SAVINGSUCCESS STORY (II)
MEASURING RESULT (2)
Very excellent
75,6%0,56040 Hz VSD
excellent61,9%0,87645 Hz VSD
Very good48,2%1,19050 Hz VSD
No good0%2,30050 Hz without VSD
RESULTSAVINGKWH5minutesDESKRIPTION
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ENERGY SAVINGSUCCESS STORY (II)
CALCULATION RESULT
Very excellent
Rp86.593.536,00,56040 Hz after
excellentRp70.867.353,00,87645 Hz after
Very goodRp55.240.704,01,19050 Hz after
No good0 rupiah2,30050 Hz before
RESULTSAVING1year
KWH 5minutes
DESKRIPTION
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ENERGY SAVINGSUCCESS STORY (III)
FINANCIAL ANALYSIS OF ENERGY SAVING PROGRAMPT SINAR PANTJA DJAJA SEMARANG
TOTAL kW’s MOTOR-MOTOR FAN AND PUMP
SPINNING UNIT 1 = 382,5 kWSPINNING UNIT 2 = 420,0 kWSPINNING UNIT 3 = 577,5 kWSPINNING UNIT 4 = 594,0 kW
TOTAL = 1.974,0 kW
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ENERGY SAVINGSUCCESS STORY (III)
TARGET of SAVING :
TOTAL = 1.974,0 kW x 35 % PER HOUR
= 690,9 kW x 24 h x 30 d PER MONTH
= 497.448 kW x Rp. 550,-
= Rp. 273.596.400,- PER MONTH
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ENERGY SAVINGSUCCESS STORY (III)
INVESTATION
VSD = Rp. 1.000.000,- / kW
PAYBACK PERIOD
Rp. 1,974 M / Rp. 273.596.400,- PER MONTH
7,2 MONTH
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HVAC SYSTEM
HVAC : Heating Ventilation Air Conditioner
The HVAC Drives Specialist has specifications advantages such as:
Save money Easy commissioning Application menus Quick menu Motor Rotation Check PID-auto tuning Maintenance free Save space
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ENERGY SAVING
VSD implementation on the water pump with 55 kW at PDAM Kadipiro
The measurement results (1)
20%76718471After
TSR
9894 0%9490Before
SavingAmp Avg
Amphere PhasaDescription
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ENERGY SAVING
The measurement result (2)
Good28,5%6362,945 Hz VSD
No good0%8900,9850 Hz tanpa VSD
RESULTSAVINGKWH7 DaysDESKRIPSI
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ENERGY SAVING
The Measuring result.
Without Inverter:8900,98 / 168 hours = 52,98 kWh
With Inverter6362,9 / 168 hours = 27,87
So, it saves energy 25,11 kWh.
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ENERGY SAVING
With Target saving:Total = 25,11 x 24 x 30 days per month
= 18079,2 kW x Rp. 765,- = Rp. 13.830.588,- per month
With investment:VSD 55 kW = Rp. 30.000.000,-Payback Periode:
30.000.000 / 13.830.588 = 2,2 months
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Thank you for your attention