Société des Eaux de Marseille

Caso di successo
Société des Eaux de Marseille
Energy Efficiency with Variable Speed Drives in a pumping station (Francia)
Profilo del cliente
1.4 million people supplied
185 million m3 of drinking water supplied per year, 48 treatment plants
91 million m3 of wastewater treated per year, 70 treatment plants
Obiettivi del cliente
Improve follow-up of optimum water flow profile in a pumping station at the output of a drinking water treatment plant (in
Aubagne, near Marseille),
Improve process efficiency by smoothing water flow,
Energy savings,
Find a compromise between service quality and energy savings and avoiding as much as possible jolts of pressure on
water distribution.
Vantaggi per il cliente
20% energy savings!
Improved process efficiency and easier process management
Testimonianze di clienti (testuali)
"The major benefit of variable speed drives is the better process control. Energy savings are the icing on the cake"
Mr Emmanuel Guiol, responsible for Water production
Metodologia di implementazione
1. analyse customer request in terms of process management, smoothness of operation and energy savings,
2. estimate possible energy savings with implementation of variable speed drives
3. commercial offer
Durata
6 months
In che modo abbiamo calcolato il risparmio energetico?
Energy savings have been calculated by comparison of energy consumption before and after implementation of variable
speed drives, during two comparable periods: July to November, 2007 and 2008,
Significant variable: number of kWh per m3
Valori che differenziano Schneider Electric rispetto ai concorrenti
Long term partnership
Complete Power and Automation offer
Local service team
Strategic account approach
Quadro generale delle soluzioni
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Caso di successo
1. replacement of direct on-line starters by variable speed drives
2. two independent pumping systems, each one with 3 pumps in parallel (one pump in redundancy)
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