impact of on energy saving eng: fayez badr fayez.badr@giz.de # 01229007111 senior advisor water and...
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Impact of on energy saving
Eng: Fayez Badr
fayez.badr@giz.de# 01229007111 senior advisor Water and wastewater management programm (WWMP)Giz-Egypt
8 May 2014
Technical Sustainable ManagementEgyptian Approach to Raising Management Standards
in the Water Sector Case study
Definition of Neighborhood day :
• It is a forum for the stakeholders of the TSMEgypt facilities to discuss challenges, and knowledge transfer
• This programm highlighted energy saving of O&M cost
Definition of Technical sustainable management program(TSMegypt)
It is an Egyptian programm aims to enhance water services to reach to the international standard
Case studies on energy saving as an impact of TSM-Egypt certificate
1- Balaqse WWTP 2- Qaha WWTP
1- Balaqs WWTP
Basic data
Location: Cairo-Egypt Area:85 AcrDesign flow:600.000m3/dTreatment technology: conventional activated sludge Year of operation :1992Year of certification: 2011Power factor: 0.83
Impact of installation of power factor capacitors bank
1- Claim of power factor The annual power factor penalty = 150.000€ total claims in 14 year =150.000×14=2.100.000 €
2- Saving calculation:• Installation cost of the capacitors bank =500.000 €• Life time of the capacitors bank =14 year• Annual penalty =150.000 €• Pay pack = 3.3 year • Annual saving in 14 year = 2.100.000-500.000÷14=114.000 €
Power factor before and after installation of capacitors
Max demandDefinition it is a penalty add to the monthly electrical bill If the facility consumed electricity more than the contracted power
Measurement • The electric company install peak load meter, to measure it• the potentiometer of the meter moves after 15 min of
consumption to be add for the next extra Contracted consumption.
Calculation • Momentary consumption considers as an annual
consumption not momentary consumption.
penelty• cost of the contracted KW= 0.29 pound • Cost of KW=21 pound i.e. 72 times
Max demand
Peak load meter
Balaqs WWTP get rid of the annual max demand penalty which was 50.000 €/year after application of the following programms:
SOPs through: Pumps operation
Operate the electric generator during peak load period Apply an Interactive operational plan of the electrical
equipment. Apply routine maintenance plan Training
Impact of TSM-Egypt certificate on power saving
1- QAHA WWTP
Basic data
Location: Qaluobya -Egypt Area:6 AcreDesign flow:10.000m3/dActual flow :4500 m3/dTreatment technology: activated sludge(extended aeration-Kruger technology )Year of operation :2004Year of certification: under citification
Plant Lay out
Impact of modification of operation plan
The plant have two trains, both of them was in service although it is receives half of the design flow
Action:• Stop one of the trains to be a stand by
Component of the train• 4 rotating brushes -45 Kw/each • Beside modify the operating time of the RAS& WAS pumps from 12 hour to 8 hour /day
Electric Power bills analysis
Month Consumption (KW) Cost (pound )Annual Saving Percentage
October 2013 86400 25057 20.5%
December 2013 75200 21809
January 2014 70800 19914
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