Solar Energy Implementation for Cost Reduction at Water Utility
Reduction of operation and maintenance costs through solar energy implementation at the Water Utility of Korca City, as presented at the Danube Water Conference 2018 in Vienna, Austria. UKKO SH.A, a joint stock company, showcases infrastructure details, services provided, and the success of the waste water treatment plant in Korca City. The plant's performance parameters and energy cost comparisons demonstrate the efficiency and potential for renewable energy in water treatment operations.
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Danube Water Conference 2018, Vienna, Austria Reduction of Operation and Maintenance costs by implementing Solar Energy at the Water Utility of KorcaCity Arlinda Ibrahimllari Join Stock Company UKKO SH.A
UKKO Sh.A Status: Join Stock Company Turnover: 2.3million Employee: 110 Location of operations: 1 City and 7 administrative unit in rural areas Infrastructure: Drinking Water Network 127 km Sewerage Network 92 km Centralized Wastewater Treatment Plant Services: Distribution of drinking water and 24 hour water supply service Collection and treatment of sewerage and septic tanks
Waste Water Treatment Plant in Korca City Secondary treatment technology, discharges in non-sensitive area ,that generated in agglomerations > 2000 p.e. (WWTP in the City of Korca is designed for a population of 85.000 PE); Simple management for water quality requirements and O&M; Successful technology for a populated area with high density (Urban Zone of the Municipality of Korca); Low maintenance costs Fully automated
Plant Performance for 2017 Parameters Parameters 91/271/EEC Limit 91/271/EEC Limit % % WWTP results for (2017) WWTP results for (2017) % achieved % achieved Concentration (mg/l) Concentration (mg/l) European Standards European Standards Efficiency Efficiency Concentration(mg/l) Concentration(mg/l) Efficiency Efficiency BOD BOD5 5 25 70-90 22 90 COD COD 125 min. 75 96 81 TSS TSS 35 min. 90 29.55 90 N Tot N Tot 10 70-80 41.1 41.1 49.25 P Tot P Tot 1 min 80 10.08 10.08 41.6
WWTP Energy Cost vs Total Energy Cost of UKKO UKKO Energy Cost Energy Cost 50,000,000 45,000,000 40,000,000 35,000,000 30,000,000 25,000,000 20,000,000 15,000,000 10,000,000 5,000,000 - 2010 2011 May 2012-May 2013
Energy Efficiency and beyond ... Energy costs associated with operating a Wastewater Treatment Plant (WWTP) account for 15 40% of a facility s total budget;but they're also one of the easiest expenses to control. Water Supply and Sewerage Companies have the potential to become pure power generators With conventional sources of energy, fluctuating costs are directly passed down to the treatment rates for users. There are several option to be taken into account as renewable energy (biomass, biogas, solar, wind and / or hydropower) Solar Panels helps to reduce and stabilize Energy costs
Benefits of Solar for Wastewater Treatment Plants Sustainable energy source: the sun is an infinite resource that generates zero pollution Carbon-free electricity, corresponding to peak demand periods Reduced electricity bills Minimal maintenance Fast commissioning Flexibility and scalability of systems Efficient land use Low risk
System Issues Project Completed July 2014 System Fixed panels Capacity 1.0 MW Surface No. of modules 2.3 Hectare 4158 No. of inverters 2 Investment 1.7 million
Solar Panels Treatment capacity of WWTP : 500 l/s Consumed energy (average annual 2015) : 125.483 Kw/m Energy produced by solar panels : 1.396.764 Kw/y or 116.397 Kw/m Efficiency: 92.7 %
Comparative table Consumption (KWH) Energy cost ( ) Production from Solar Panels (KWH) Efficiency of Photovoltaic Panels (%) Energy DOC (%) Year 2014 1,745,560 150.000 74 0 1.397.754 Year 2015 1,505,800 146.000 92.5 4 Year 2016 1.616.200 169.000 85.6 8 1.368.918 1.643.200 1.207.065 Year 2017 137.000 73.46 3.3
WWTP Costs for Year 2015 90,000.00 81,556.50 80,000.00 70,000.00 60,000.00 50,000.00 40,000.00 27,363.00 25,740.24 30,000.00 20,000.00 10,000.00 - 1 Staff cost O&M cost Energy cost
UKKO Total Cost Vs Energy Cost (before and after Solar Energy Production) ENERGY COSTS BEFORE SOLAR PANEL PRODUCTION UKKO Costs WWTP Energy Cost, 149,921.72 138,123.93 UKKO Costs , 138,123.93 WWTP Energy Cost 149,921.72 Total Energy Cost 288,045.65 ENERGY COSTS AFTER SOLAR PANEL PRODUCTION UKKO Costs Energy Costs after Solar Energy Production, 10,855.93 148,979.87 UKKO Cost, 148,979.87 WWTP Energy Cost (after Solar Panel Energy Production) Total Energy Cost 10,855.93 159,835.80
Summary Wastewater treatment is a major contributor to the use of energy throughout the water cycle Clean energy forms are advised to reduce the costs of waste water treatment Potential saving from WWTP energy costs Providing energy cost by WWTP of Kor a City goes to improving capital and planning the structures Long-term investment, secure and tangible Pure Energy Produced for Internal Needs.
Solar Panel Investment pays off for the environment. But most of all, it pays off for your utility.
