Is it solar energy perfect match for best reverse osmosis water ?
In many areas with power shortages, unstable power supply, and high electricity costs, where there is ample sunshine, solar power systems combined with best Reverse Osmosis water system are almost a golden combination, whether in rural areas, farms, ranches, mining areas, construction sites, or factories.
The cost of solar power generation:
$0.46/kWh in 2010 → $0.044/kWh in 2023, lower than the cost of fossil fuels. China accounts for 80% of the global market share for solar photovoltaic power. Therefore, solar photovoltaic power is the most economical solution for best reverse osmosis water system.
How to determine local area is suitable to use solar power ?
The core indicators for judging sufficient sunlight are: annual solar radiation and annual sunshine hours;If the local solar energy resources are abundant and are pure natural clean energy, it would be a waste not to utilize them properly.
(1) Annual Solar Radiation
Annual solar radiation: kWh/m²·year, is the core indicator that truly determines power generation.
Empirical judgment criteria:
| Annual solar radiation | evaluate |
| ＞1,800 kWh/m²·year | Very suitable |
| 1,500 - 1,800 | Suitable |
| 1,200 - 1,500 | Barely feasible |
| ＜1,200 | Not recommended |
For the same 1MW photovoltaic system, the annual power generation may be 20-40% higher in areas with higher radiation levels.
(2)Annual Sunshine Hours
Annual sunshine hours (h/year) reflect weather stability and the number of sunny days throughout the year.
Judgment:
| Sunlight hours | evaluate |
| ＞2,000 h | Good |
| 1,500 - 2,000h | Medium |
| ＜1,500 | Poor |
What should know about solar power system?
Advantages:
- Solar energy resources are inexhaustible, with very low operating costs.
- suitable for off-grid and weak current areas.
- highly compatible with "daytime operating equipment," such as reverse osmosis Water Purification systems.
Disadvantages:
- Higher initial investment;
- affected by weather and day/night cycles, leading to intermittent power supply;
- requires significant land or roof space;
- high temperatures and dusty environments reduce energy efficiency.
Why best reverse osmosis water and solar energy system are perfect match?
Reverse Osmosis Systems and solar photovoltaic power generation devices are highly compatible in terms of energy attributes, equipment characteristics, and control logic.
(1) Energy Attributes
The reverse osmosis system is a purely electric-driven device, supporting combined power generation from solar photovoltaic power generation, electrical systems, and diesel power generation systems.
The reverse osmosis system does not require a heat source or complex energy conversion; photovoltaic power generates electricity, and RO also requires electricity—the energy forms are 100% matched.
The reverse osmosis system is a typical motor-driven load, and its power can be continuously adjusted via a frequency converter.
(2)Equipment characteristics matching
Best reverse osmosis water system operation characteristics: It can run continuously, but does not need to run 24 hours a day; it uses solar photovoltaic to produce water during the day and stores water in the tank; the RO system can use little or no batteries.
(3)Technical Matching
a.Solar energy has three instabilities:
changes in sunlight → power changes; cloud cover → voltage fluctuations; morning and evening → insufficient power generation.
b.RO system high-pressure pumps:
high starting current, sensitive to voltage and frequency, susceptible to frequent start-stop and impact.
However, VFD (Variable Frequency Drive) and MPPT (Maximum Power Point Tracking) can perfectly solve these problems.
The output power of a solar system varies with sunlight. By using MPPT + VFD, the best reverse osmosis water system can operate smoothly based on available energy. Combined with a water storage system to replace electricity storage, the overall solution is optimized both technically and economically.
(4) Economic Aspect
Best reverse osmosis water system are long-term operating equipment, and electricity costs account for a high proportion of the total water production cost. Solar energy, on the other hand, requires a one-time investment and can save electricity in the long term, especially in situations where electricity prices are high, diesel fuel is expensive, and the power grid is unstable.
In summary, reverse osmosis water system and solar photovoltaic systems are highly compatible in terms of technology, economics, and operational logic, making them the optimal combination for off-grid water production in areas with high electricity prices.
XJY company's water purification equipment is among the best in China's reverse osmosis water purification industry. Therefore, please contact us if you wish to purchase.
Contact us:
Name: Cliff Mok
Mobile phone: +86 17817887719