Here's how rainwater harvesting and electrolysis can be used to produce green hydrogen:

 Harvesting green hydrogen from thin air | Rainwater harvesting can be used to produce green hydrogen through a solar-powered hybrid system that uses atmospheric water harvesting. This system can be especially useful in arid regions with high water scarcity and relative humidity. 

Here's how rainwater harvesting and electrolysis can be used to produce green hydrogen:

Rainwater harvesting

Collects and stores rainwater from roofs, land surfaces, or other areas. The collected water can be used for many purposes, including: 

Watering gardens and livestock 

Irrigation 

Domestic use 

Domestic heating 

Groundwater recharge 

Electrolysis

Uses renewable resources like wind and solar to split water molecules into hydrogen and oxygen gas. The hydrogen is captured, stored, and used for a variety of purposes. 

Solar-powered hybrid system

Uses solar energy to drive both the atmospheric water harvesting unit and the electrolyzer. 

Here are some things to consider when using rainwater harvesting and electrolysis to produce green hydrogen:

Water quality: The quality of the water used for electrolysis needs to be high. 

Water quantity: The amount of water needed to produce green hydrogen can be calculated using the atomic composition of water. For example, it takes 9 liters of water to produce 1 kg of hydrogen. 

Salty water: Salty water can also be used to produce hydrogen through direct seawater electrolysis or after desalination. However, impurities in seawater can make this process more complex than using freshwater.