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