Desalination Energie Rechner
Berechnen Sie den energy required und cost for seawater desalination unter Verwendung von reverse osmosis or thermal methods.
Daily Energy Required
1,200 kWh
Daily Energy Required vs Electricity Rate
Formel
## How to Calculate Desalination Energy Desalination removes salt from seawater to produce fresh water, requiring significant energy. ### Formula **Daily Energy = Volume (gal) * Energy Rate / 1,000** ### Energy Requirements (kWh per 1,000 gallons) - **Reverse osmosis (RO)**: 10-15 kWh - **Multi-stage flash**: 20-30 kWh - **Multi-effect distillation**: 15-25 kWh - **Forward osmosis**: 8-12 kWh (emerging)
Lösungsbeispiel
A small RO plant producing 100,000 gal/day at 12 kWh/1000 gal with $0.10/kWh electricity.
- 01Daily energy: 100,000 * 12 / 1,000 = 1,200 kWh
- 02Daily cost: 1,200 * $0.10 = $120
- 03Annual cost: 1,200 * 365 * $0.10 = $43,800
- 04Cost per 1,000 gal: 12 * $0.10 = $1.20
Häufig Gestellte Fragen
How much energy does desalination require?
Modern reverse osmosis uses 10-15 kWh per 1,000 gallons of fresh water produced. This is down from 25+ kWh two decades ago due to energy recovery devices and improved membranes.
How does desalination cost compare to tap water?
Desalinated water costs $2-5 per 1,000 gallons versus $1-3 for conventional treated water. The gap is narrowing as technology improves and freshwater sources become scarcer.
Can solar power run a desalination plant?
Yes. Several solar-powered RO plants operate worldwide. The combination is logical since areas with water scarcity often have abundant solar resources.