海水淡化能耗计算器
使用海水淡化能耗计算器评估不同淡化工艺的能量消耗。计算反渗透或蒸馏法处理每立方米海水所需的kWh能耗和运营成本，优化淡化项目规划。
Daily Energy Required
1,200 kWh
Daily Energy Required vs Electricity Rate
公式
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)
计算示例
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
常见问题
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.