dsm : international experience (energy efficient ac equipment : greece) a.k.asthana sr. technical...
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DSM : International Experience(Energy Efficient AC Equipment : Greece)
A.K.AsthanaSr. Technical Expert
German Technical Co-Operation (GTZ)Bureau of Energy Efficiency, Ministry of Power, GOI
2
PPC Power PPC Power Generation (85.7%)Generation (85.7%)
IPPsIPPs
Small Small scale/alternative scale/alternative energy producersenergy producers
Inports/interconnectorsInports/interconnectors
HTSOHTSOPPC PPC NetworksNetworks
PPC supplyPPC supply
Independent Independent SuppliersSuppliers(Energa,ATEL(Energa,ATEL>> more)>> more)
100
%m
ark
et
100
%m
ark
et
ope
ning
sin
ce J
uly
ope
ning
sin
ce J
uly
200
720
07
PPC IN GREEK ELECTRICITY MARKETPPC IN GREEK ELECTRICITY MARKET
RESIDENTIAL INDUSTRIALCOMMERCI
ALAGRICULT
URAL
PUBLIC LIGHTIN
G
STATE SUPPLIES
D.C. ELECTROMOTIO
N
TOTAL
VOLTAGE
LOW 17.957.271 1.439.113 11.617.048 2.471.746 813.813 962.103 35.261.095
MEDIUM 6.028.878 4.259.270 409.699 1.121.221 142.028 11.961.096
HIGH 7.761.698 7.761.698
TOTAL 17.957.271 15.229.689 15.876.318 2.881.445 813.813 2.083.324 142.028 54.983.889
TOTAL SOLD ENERGY TO PPC’ s CUSTOMERS (MWh)TOTAL SOLD ENERGY TO PPC’ s CUSTOMERS (MWh)(2007)(2007)
TOTAL SOLD ENERGY TO HV,MV & LV CUSTOMERS (2007)
32,7%
28,9%
27,7%
5,2% 3,8% RESIDENTIAL
COMMERCIAL
INDUSTRIAL
AGRICULTURAL
STATE SUPPLIES
SOLD ENERGY LV (MWh)
17.957.271
1.439.113
11.617.048
962.103813.813
2.471.746
RESIDENTIAL
INDUSTRIAL
COMMERCIAL
AGRICULTURAL
PUBLIC LIGHTING
STATE SUPPLIES
COMMON RESIDENTIAL CONSUMPTION
21,0%
14,0%15,0%
10,0%
18,0%
9,0%13,0%
REFRIGERATOR
OVEN
LIGHTING
WASHING MACHINE
WATER HEATER
TV
OTHER APPLIANCES
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Indirect Load ManagementIndirect Load ManagementTime Of Use tARIFFSTime Of Use tARIFFS
CASE SITUATION
Current Status
Island
€/MWhCost of energy
supplyRegulated
tariff
Lesbos 224 113Samos 195 117Syros 254 117Chios 151 116Rhodes 239 119
Electricity in these Islands are charged by PPC but regulated by Regulatory Authority for Energy
Electricity generated by diesel generator
The cost of regulated tariff is about 46% to 76% of the cost of PPC
Energy Consumption Profile
Energy consumption peaks during the summer, with air-conditioning loads of small consumers connected to LV network accounting for the majority of electricity consumed
- Replace the energy inefficient AC units with more efficient version- Incorporation of direct load control into AC units
To reduce peak load condition !!!!
Existing ACs Energy Efficient ACs
Season No. days / season Hours per day operation
Totalhours
Winter 155 0 0Spring 48 5 240Summer 70 6 420Peak Summer 44 7 308Autumn 48 3 144Total 365 1,112
Annual Energy Consumption : 1012 kwh (€ 660 kwh for EE Acs)
Annual Saving : 352 kwh ( = € 40 / year @ regulated tariff of € 113 / Mwh
Business Case # 1Reduce the amount of energy consumed in the islands by encouraging
consumers by a replacement policy
Payback Period : 10 years (too high)
- Little incentive for households - Provision of subsidy could provide the motivation for replacement
The energy cost saving is equivalent to almost € 80 per unit replaced.
Business Case # 2Reduce the energy consumption by AC during peak periods
-Introduction of Critical Peak Pricing (CPP)- Introduce Smart Meters
Provision of a controller to automatically switch-off the air conditioning unit during CPP period
- Cost of smart meters @ € 150 - Benefit to Supplier : Avoided cost of Peak Power- Benefit to Customer : Reduce energy cost associated with new pricing structure
Supplier benefit would be at least € 22/customer/year to cover the up-front cost of smart metering
• Peak load reduction of 10% to 15%• Maximum energy cost saving to Supplier = € 0.4 / customer • Assuming 50 critical peak days per year, annual benefit to supplier is around € 22/year
14
15/01/2009
PUBLIC POWER CORPORATION S.A.
Direct Load ManagementDirect Load ManagementRemote systems for customer’ s appliances load management Remote systems for customer’ s appliances load management
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Direct Load ManagementDirect Load ManagementMeters including remote load control switch breakersMeters including remote load control switch breakers
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Indirect Load ManagementIndirect Load ManagementIn house DisplayIn house Display
•KW DemandKW Demand•Cost per hourCost per hour•Green house emissionsGreen house emissions•Graphical informationGraphical information•Messaging from supplierMessaging from supplier•Demand indicatorsDemand indicators•Time and room temperatureTime and room temperature
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Smart metering progress in EUROPESmart metering progress in EUROPE
SPAIN:Regulator Decision for Smart Meters rollout. 23 m€ research program
France:Pilot for 300.000 Smart Meters
ITALY: Pioneer. 31 m Smart Meters established
SWEDEN: Legislation 850.000 Smart Meters from VATTENFALL and 300.000 from E.ON
FINLAND: For benefits more than 350.000 Smart Meters
GERMANY:RWE decision for 100.000 Smart Meters pilot
Netherlands:Regulator. Decision for Smart Meters roll out
UK:Government .9,75 m£ for pilot projects
Thanks ….
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