Download
community water supply efficiency improvements n.
Skip this Video
Loading SlideShow in 5 Seconds..
Community Water Supply Efficiency Improvements PowerPoint Presentation
Download Presentation
Community Water Supply Efficiency Improvements

Community Water Supply Efficiency Improvements

114 Vues Download Presentation
Télécharger la présentation

Community Water Supply Efficiency Improvements

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Community Water SupplyEfficiency Improvements Preliminary Potential Estimates for the Seventh Power Plan October 14, 2014

  2. Water Supply Overview • Processes • Collection • Treatment • Distribution • Energy Consumption: • Pumping 80% • Treatment 20% • New regulations for treatment may change the mix slightly • Ozonation • Membrane Filtration • UV Disinfection • Source Type • Surface Water • More treatment energy • Less pumping energy • Ground Water • Less treatment energy • More pumping energy

  3. Community Fresh Water in the PNW • USGS: 81% of PNW Population served by Community Water Systems • 52% is Surface Water* • 48% is Ground Water* • EPA: 4,570 community water systems in the 4 PNW states. • 240 plants serve 80% of population served by CWS’s * By volume

  4. Energy Savings Measures • VFD’s and low head loss valves • Distribution system pressure optimization (strategic use of booster pumps) • Fix leaks in distribution system • Optimize filtration (pre-treat before filtering) • Pump efficiency optimization • Premium efficiency motors • Low pressure UV lamps versus med. pressure • High efficiency single stage blowers • Compressed air efficiency measures • Use of low friction linings or coatings in piping

  5. Water Supply Achievements • Achievements in 2010 -2012 have averaged just over 1.0 aMW region wide.

  6. Seventh Plan Methods and Sources

  7. Basic Formula (simplified) Flow - SW, GW (MGD) X Consumption Rate - SW, GW (kWh/MGD) = TOTAL CONSUMPTION (kWh) x Savings Rate (%) x Population Growth = Tech Potential in 2035 *SW=Surface Water, GW = Ground Water, MGD Million Gallons per Day Adjustments with new data

  8. Plan Estimates • History • Sixth Plan Technical Potential: 16.2 aMW • Fifth Plan Technical Potential: 29 aMW • Seventh Plan Preliminary Potential • 10.7 aMW

  9. Status • Will update if additional data received • AWWA Benchmarking report • Utility data