The proposed IPHROS project summary by Oceanus P&W for Pitiquitos, Sonora, Mexico is an excellent reference for high level capital expense and operational expense advantages. Fresh water, energy storage, clean energy and skilled jobs combined.
Summarized advantages of the specific project:
1. Long term, low cost water and energy infrastructure.
2. Integration of decades-proven technologies drives down the costs of water and energy, securing long‐term lower prices.
3. Supports strategic direction towards zero emissions energy for utility scale water supply.
4. Pumped hydro operation at 35% capacity factor provides ~3,000 hours/year of dispatchable energy to the grid with rotating equipment providing grid stability.
5. Energy storage response times less than five minutes.
6. The elevation change hydraulic head pressure drives a 40-60% reduction of conventional seawater reverse osmosis desalination.
7. Seawater pumped hydro storage outflow dilutes seawater reverse osmosis desalination brine. The brine discharge is is discharged within 5‐10% of ambient salinity levels.
Source: Oceanus P&W Global Solutions for Water and Energy Security dated May 2018 from Google search public domain site at www.cleanenergysolutions.org
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